HEADER    MEMBRANE PROTEIN                        31-DEC-01   1KPL              
TITLE     CRYSTAL STRUCTURE OF THE CLC CHLORIDE CHANNEL FROM S. TYPHIMURIUM     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PUTATIVE CLC FAMILY, CHLORINE TRANSPORT PROTEIN;           
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 SYNONYM: CLC CHLORIDE CHANNEL;                                       
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM;                         
SOURCE   3 ORGANISM_TAXID: 602;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21 DE3;                                  
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET28B+                                   
KEYWDS    HELICAL MEMBRANE PROTEIN, HOMODIMER, ION CHANNEL, MEMBRANE PROTEIN    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.DUTZLER,E.B.CAMPBELL,M.CADENE,B.T.CHAIT,R.MACKINNON                 
REVDAT   6   14-FEB-24 1KPL    1       REMARK                                   
REVDAT   5   27-OCT-21 1KPL    1       REMARK SEQADV                            
REVDAT   4   22-DEC-10 1KPL    1       MTRIX1 MTRIX2 MTRIX3                     
REVDAT   3   12-MAY-09 1KPL    1       MTRIX1 MTRIX2 MTRIX3                     
REVDAT   2   24-FEB-09 1KPL    1       VERSN                                    
REVDAT   1   23-JAN-02 1KPL    0                                                
JRNL        AUTH   R.DUTZLER,E.B.CAMPBELL,M.CADENE,B.T.CHAIT,R.MACKINNON        
JRNL        TITL   X-RAY STRUCTURE OF A CLC CHLORIDE CHANNEL AT 3.0 A REVEALS   
JRNL        TITL 2 THE MOLECULAR BASIS OF ANION SELECTIVITY.                    
JRNL        REF    NATURE                        V. 415   287 2002              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   11796999                                                     
JRNL        DOI    10.1038/415287A                                              
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.3                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1592586.140                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 94.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 49949                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.254                           
REMARK   3   FREE R VALUE                     : 0.289                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 4981                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.004                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 3.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.19                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 95.50                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 7552                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3610                       
REMARK   3   BIN FREE R VALUE                    : 0.3860                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 9.70                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 808                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.014                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 13144                                   
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 70                                      
REMARK   3   SOLVENT ATOMS            : 2                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 85.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 79.60                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 26.57000                                             
REMARK   3    B22 (A**2) : 5.33000                                              
REMARK   3    B33 (A**2) : -31.91000                                            
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -11.87000                                            
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.44                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.53                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.50                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.58                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.009                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.500                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 17.20                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.800                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.120 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.980 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 6.750 ; 4.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 9.050 ; 6.000                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : CONSTR                                                  
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  3  : ALKANE.PAR                                     
REMARK   3  PARAMETER FILE  4  : WATER.PARAM                                    
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  3   : ALKANE.TOP                                     
REMARK   3  TOPOLOGY FILE  4   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: STRICT 2-FOLD NCS CONSTRAINTS BETWEEN     
REMARK   3  THE TWO DIMERS IN THE ASYMMETRIC UNIT WERE MAINTAINED. BULK         
REMARK   3  SOLVENT MODEL USED.                                                 
REMARK   4                                                                      
REMARK   4 1KPL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-JAN-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000015201.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 03-OCT-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 4.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X25                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : BRANDEIS                           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 50567                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 35.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.7                               
REMARK 200  DATA REDUNDANCY                : 2.400                              
REMARK 200  R MERGE                    (I) : 0.06500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.7000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.11                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.54400                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIRAS                        
REMARK 200 SOFTWARE USED: SHARP                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 62.78                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.30                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 400, ACETATE, SODIUM SULFATE,        
REMARK 280  LITHIUM SULFATE, PH 4.6, VAPOR DIFFUSION, SITTING DROP,             
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       45.07950            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE BIOLOGICALLY ACTIVE ASSEMBLY IS A HOMODIMER. THE TWO     
REMARK 300 BIOLOGICAL DIMERS IN THE ASYMMETRIC UNIT ARE COMPOSED OF PROTEIN     
REMARK 300 CHAINS A AND B, C AND D. STRICT CRYSTALLOGRAHIC NCS CONSTRAINTS      
REMARK 300 HAVE BEEN MAINTAINED BETWEEN THE TWO DIMERS IN THE ASYMMETRIC UNIT.  
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     LYS A     2                                                      
REMARK 465     THR A     3                                                      
REMARK 465     ASP A     4                                                      
REMARK 465     THR A     5                                                      
REMARK 465     SER A     6                                                      
REMARK 465     THR A     7                                                      
REMARK 465     PHE A     8                                                      
REMARK 465     LEU A     9                                                      
REMARK 465     ALA A    10                                                      
REMARK 465     GLN A    11                                                      
REMARK 465     GLN A    12                                                      
REMARK 465     ILE A    13                                                      
REMARK 465     VAL A    14                                                      
REMARK 465     ARG A    15                                                      
REMARK 465     LEU A    16                                                      
REMARK 465     ARG A    17                                                      
REMARK 465     ARG A    18                                                      
REMARK 465     ARG A    19                                                      
REMARK 465     ASP A    20                                                      
REMARK 465     GLN A    21                                                      
REMARK 465     ILE A    22                                                      
REMARK 465     ARG A    23                                                      
REMARK 465     ARG A    24                                                      
REMARK 465     LEU A    25                                                      
REMARK 465     LEU A    26                                                      
REMARK 465     GLN A    27                                                      
REMARK 465     ARG A    28                                                      
REMARK 465     ASP A    29                                                      
REMARK 465     LYS A    30                                                      
REMARK 465     ALA A   461                                                      
REMARK 465     GLU A   462                                                      
REMARK 465     LYS A   463                                                      
REMARK 465     ASN A   464                                                      
REMARK 465     GLN A   465                                                      
REMARK 465     ASN A   466                                                      
REMARK 465     ALA A   467                                                      
REMARK 465     PRO A   468                                                      
REMARK 465     ALA A   469                                                      
REMARK 465     ASP A   470                                                      
REMARK 465     GLU A   471                                                      
REMARK 465     ASN A   472                                                      
REMARK 465     THR A   473                                                      
REMARK 465     MET B     1                                                      
REMARK 465     LYS B     2                                                      
REMARK 465     THR B     3                                                      
REMARK 465     ASP B     4                                                      
REMARK 465     THR B     5                                                      
REMARK 465     SER B     6                                                      
REMARK 465     THR B     7                                                      
REMARK 465     PHE B     8                                                      
REMARK 465     LEU B     9                                                      
REMARK 465     ALA B    10                                                      
REMARK 465     GLN B    11                                                      
REMARK 465     LYS B   463                                                      
REMARK 465     ASN B   464                                                      
REMARK 465     GLN B   465                                                      
REMARK 465     ASN B   466                                                      
REMARK 465     ALA B   467                                                      
REMARK 465     PRO B   468                                                      
REMARK 465     ALA B   469                                                      
REMARK 465     ASP B   470                                                      
REMARK 465     GLU B   471                                                      
REMARK 465     ASN B   472                                                      
REMARK 465     THR B   473                                                      
REMARK 465     MET C     1                                                      
REMARK 465     LYS C     2                                                      
REMARK 465     THR C     3                                                      
REMARK 465     ASP C     4                                                      
REMARK 465     THR C     5                                                      
REMARK 465     SER C     6                                                      
REMARK 465     THR C     7                                                      
REMARK 465     PHE C     8                                                      
REMARK 465     LEU C     9                                                      
REMARK 465     ALA C    10                                                      
REMARK 465     GLN C    11                                                      
REMARK 465     GLN C    12                                                      
REMARK 465     ILE C    13                                                      
REMARK 465     VAL C    14                                                      
REMARK 465     ARG C    15                                                      
REMARK 465     LEU C    16                                                      
REMARK 465     ARG C    17                                                      
REMARK 465     ARG C    18                                                      
REMARK 465     ARG C    19                                                      
REMARK 465     ASP C    20                                                      
REMARK 465     GLN C    21                                                      
REMARK 465     ILE C    22                                                      
REMARK 465     ARG C    23                                                      
REMARK 465     ARG C    24                                                      
REMARK 465     LEU C    25                                                      
REMARK 465     LEU C    26                                                      
REMARK 465     GLN C    27                                                      
REMARK 465     ARG C    28                                                      
REMARK 465     ASP C    29                                                      
REMARK 465     LYS C    30                                                      
REMARK 465     ALA C   461                                                      
REMARK 465     GLU C   462                                                      
REMARK 465     LYS C   463                                                      
REMARK 465     ASN C   464                                                      
REMARK 465     GLN C   465                                                      
REMARK 465     ASN C   466                                                      
REMARK 465     ALA C   467                                                      
REMARK 465     PRO C   468                                                      
REMARK 465     ALA C   469                                                      
REMARK 465     ASP C   470                                                      
REMARK 465     GLU C   471                                                      
REMARK 465     ASN C   472                                                      
REMARK 465     THR C   473                                                      
REMARK 465     MET D     1                                                      
REMARK 465     LYS D     2                                                      
REMARK 465     THR D     3                                                      
REMARK 465     ASP D     4                                                      
REMARK 465     THR D     5                                                      
REMARK 465     SER D     6                                                      
REMARK 465     THR D     7                                                      
REMARK 465     PHE D     8                                                      
REMARK 465     LEU D     9                                                      
REMARK 465     ALA D    10                                                      
REMARK 465     GLN D    11                                                      
REMARK 465     LYS D   463                                                      
REMARK 465     ASN D   464                                                      
REMARK 465     GLN D   465                                                      
REMARK 465     ASN D   466                                                      
REMARK 465     ALA D   467                                                      
REMARK 465     PRO D   468                                                      
REMARK 465     ALA D   469                                                      
REMARK 465     ASP D   470                                                      
REMARK 465     GLU D   471                                                      
REMARK 465     ASN D   472                                                      
REMARK 465     THR D   473                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU B 462    CG   CD   OE1  OE2                                  
REMARK 470     GLU D 462    CG   CD   OE1  OE2                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   CA   PHE C   328     ND2  ASN D   327     2545     1.75            
REMARK 500   CD1  PHE C   328     ND2  ASN D   327     2545     1.87            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    PRO A 310   C   -  N   -  CA  ANGL. DEV. =   9.0 DEGREES          
REMARK 500    TYR B 210   N   -  CA  -  C   ANGL. DEV. = -18.6 DEGREES          
REMARK 500    ILE B 320   N   -  CA  -  C   ANGL. DEV. =  17.1 DEGREES          
REMARK 500    PRO C 310   C   -  N   -  CA  ANGL. DEV. =   9.0 DEGREES          
REMARK 500    TYR D 210   N   -  CA  -  C   ANGL. DEV. = -18.6 DEGREES          
REMARK 500    ILE D 320   N   -  CA  -  C   ANGL. DEV. =  17.1 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    MET A  63      -70.16    -60.58                                   
REMARK 500    LEU A  85      -70.30    -50.72                                   
REMARK 500    VAL A  97      -70.27    -60.52                                   
REMARK 500    LYS A  99      -64.33    -92.82                                   
REMARK 500    GLU A 103        0.58    -65.41                                   
REMARK 500    SER A 107      -75.55    -47.99                                   
REMARK 500    MET A 161      -70.30    -50.85                                   
REMARK 500    ARG A 169       35.05   -141.66                                   
REMARK 500    GLU A 203      -50.04   -123.48                                   
REMARK 500    PRO A 206       99.62    -61.23                                   
REMARK 500    ALA A 236      118.22    -20.75                                   
REMARK 500    ILE A 238      -79.57    -70.01                                   
REMARK 500    ASN A 250        1.40    -55.97                                   
REMARK 500    ARG A 275      -71.30    -57.86                                   
REMARK 500    GLU A 309       69.82     81.94                                   
REMARK 500    ASN A 318      -27.49    -31.24                                   
REMARK 500    LEU A 319      -10.92   -165.59                                   
REMARK 500    ASN A 327      146.30   -178.71                                   
REMARK 500    PHE A 357      -78.39    -54.31                                   
REMARK 500    ARG A 403       47.18     75.70                                   
REMARK 500    TYR A 419      -17.19    -49.47                                   
REMARK 500    GLN A 456      -78.51    -53.76                                   
REMARK 500    GLN B  27       11.99   -143.06                                   
REMARK 500    ASP B  29       93.27     23.59                                   
REMARK 500    ARG B  64      -73.34    -53.01                                   
REMARK 500    VAL B  71       30.93    -95.95                                   
REMARK 500    HIS B  74       71.09   -107.16                                   
REMARK 500    ALA B  75      -38.24    -34.77                                   
REMARK 500    LEU B  78      -64.83   -109.12                                   
REMARK 500    ALA B 101       89.01   -156.86                                   
REMARK 500    GLU B 118       -0.68     74.58                                   
REMARK 500    GLU B 309       55.53     78.36                                   
REMARK 500    ALA B 313     -167.39   -121.13                                   
REMARK 500    ASN B 318      -19.08    -37.63                                   
REMARK 500    LEU B 319      -19.23   -161.66                                   
REMARK 500    PRO B 321        7.01    -52.92                                   
REMARK 500    ASN B 327      135.74   -172.66                                   
REMARK 500    ALA B 352      151.55    -48.97                                   
REMARK 500    ARG B 403       57.59     74.05                                   
REMARK 500    ALA B 458       -4.49    -48.93                                   
REMARK 500    GLU B 459      -50.26   -123.36                                   
REMARK 500    MET C  63      -70.16    -60.60                                   
REMARK 500    LEU C  85      -70.26    -50.71                                   
REMARK 500    VAL C  97      -70.29    -60.55                                   
REMARK 500    LYS C  99      -64.35    -92.77                                   
REMARK 500    GLU C 103        0.55    -65.44                                   
REMARK 500    SER C 107      -75.53    -48.02                                   
REMARK 500    MET C 161      -70.32    -50.85                                   
REMARK 500    ARG C 169       35.07   -141.65                                   
REMARK 500    GLU C 203      -50.03   -123.46                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      82 RAMACHANDRAN OUTLIERS.                        
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 503                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 504                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 505                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 506                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL C 603                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL D 604                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 605                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 C 606                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MYS B 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MYS D 601                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1KPK   RELATED DB: PDB                                   
REMARK 900 THIS STRUCTURE IS HOMOLOGOUS TO THE CRYSTAL STRUCTURE OF THE CLC     
REMARK 900 CHLORIDE CHANNEL FROM E. COLI (1KPK).                                
DBREF  1KPL A    1   473  UNP    Q8ZRP8   CLCA_SALTY       1    473             
DBREF  1KPL B    1   473  UNP    Q8ZRP8   CLCA_SALTY       1    473             
DBREF  1KPL C    1   473  UNP    Q8ZRP8   CLCA_SALTY       1    473             
DBREF  1KPL D    1   473  UNP    Q8ZRP8   CLCA_SALTY       1    473             
SEQADV 1KPL LEU A   26  UNP  Q8ZRP8    MET    26 ENGINEERED MUTATION            
SEQADV 1KPL VAL A  264  UNP  Q8ZRP8    CYS   264 ENGINEERED MUTATION            
SEQADV 1KPL LEU B   26  UNP  Q8ZRP8    MET    26 ENGINEERED MUTATION            
SEQADV 1KPL VAL B  264  UNP  Q8ZRP8    CYS   264 ENGINEERED MUTATION            
SEQADV 1KPL LEU C   26  UNP  Q8ZRP8    MET    26 ENGINEERED MUTATION            
SEQADV 1KPL VAL C  264  UNP  Q8ZRP8    CYS   264 ENGINEERED MUTATION            
SEQADV 1KPL LEU D   26  UNP  Q8ZRP8    MET    26 ENGINEERED MUTATION            
SEQADV 1KPL VAL D  264  UNP  Q8ZRP8    CYS   264 ENGINEERED MUTATION            
SEQRES   1 A  473  MET LYS THR ASP THR SER THR PHE LEU ALA GLN GLN ILE          
SEQRES   2 A  473  VAL ARG LEU ARG ARG ARG ASP GLN ILE ARG ARG LEU LEU          
SEQRES   3 A  473  GLN ARG ASP LYS THR PRO LEU ALA ILE LEU PHE MET ALA          
SEQRES   4 A  473  ALA VAL VAL GLY THR LEU THR GLY LEU VAL GLY VAL ALA          
SEQRES   5 A  473  PHE GLU LYS ALA VAL SER TRP VAL GLN ASN MET ARG ILE          
SEQRES   6 A  473  GLY ALA LEU VAL GLN VAL ALA ASP HIS ALA PHE LEU LEU          
SEQRES   7 A  473  TRP PRO LEU ALA PHE ILE LEU SER ALA LEU LEU ALA MET          
SEQRES   8 A  473  VAL GLY TYR PHE LEU VAL ARG LYS PHE ALA PRO GLU ALA          
SEQRES   9 A  473  GLY GLY SER GLY ILE PRO GLU ILE GLU GLY ALA LEU GLU          
SEQRES  10 A  473  GLU LEU ARG PRO VAL ARG TRP TRP ARG VAL LEU PRO VAL          
SEQRES  11 A  473  LYS PHE ILE GLY GLY MET GLY THR LEU GLY ALA GLY MET          
SEQRES  12 A  473  VAL LEU GLY ARG GLU GLY PRO THR VAL GLN ILE GLY GLY          
SEQRES  13 A  473  ASN LEU GLY ARG MET VAL LEU ASP VAL PHE ARG MET ARG          
SEQRES  14 A  473  SER ALA GLU ALA ARG HIS THR LEU LEU ALA THR GLY ALA          
SEQRES  15 A  473  ALA ALA GLY LEU SER ALA ALA PHE ASN ALA PRO LEU ALA          
SEQRES  16 A  473  GLY ILE LEU PHE ILE ILE GLU GLU MET ARG PRO GLN PHE          
SEQRES  17 A  473  ARG TYR ASN LEU ILE SER ILE LYS ALA VAL PHE THR GLY          
SEQRES  18 A  473  VAL ILE MET SER SER ILE VAL PHE ARG ILE PHE ASN GLY          
SEQRES  19 A  473  GLU ALA PRO ILE ILE GLU VAL GLY LYS LEU SER ASP ALA          
SEQRES  20 A  473  PRO VAL ASN THR LEU TRP LEU TYR LEU ILE LEU GLY ILE          
SEQRES  21 A  473  ILE PHE GLY VAL VAL GLY PRO VAL PHE ASN SER LEU VAL          
SEQRES  22 A  473  LEU ARG THR GLN ASP MET PHE GLN ARG PHE HIS GLY GLY          
SEQRES  23 A  473  GLU ILE LYS LYS TRP VAL LEU MET GLY GLY ALA ILE GLY          
SEQRES  24 A  473  GLY LEU CYS GLY ILE LEU GLY LEU ILE GLU PRO ALA ALA          
SEQRES  25 A  473  ALA GLY GLY GLY PHE ASN LEU ILE PRO ILE ALA ALA ALA          
SEQRES  26 A  473  GLY ASN PHE SER VAL GLY LEU LEU LEU PHE ILE PHE ILE          
SEQRES  27 A  473  THR ARG VAL VAL THR THR LEU LEU CYS PHE SER SER GLY          
SEQRES  28 A  473  ALA PRO GLY GLY ILE PHE ALA PRO MET LEU ALA LEU GLY          
SEQRES  29 A  473  THR LEU LEU GLY THR ALA PHE GLY MET ALA ALA ALA VAL          
SEQRES  30 A  473  LEU PHE PRO GLN TYR HIS LEU GLU ALA GLY THR PHE ALA          
SEQRES  31 A  473  ILE ALA GLY MET GLY ALA LEU MET ALA ALA SER VAL ARG          
SEQRES  32 A  473  ALA PRO LEU THR GLY ILE VAL LEU VAL LEU GLU MET THR          
SEQRES  33 A  473  ASP ASN TYR GLN LEU ILE LEU PRO MET ILE ILE THR CYS          
SEQRES  34 A  473  LEU GLY ALA THR LEU LEU ALA GLN PHE LEU GLY GLY LYS          
SEQRES  35 A  473  PRO LEU TYR SER THR ILE LEU ALA ARG THR LEU ALA LYS          
SEQRES  36 A  473  GLN ASP ALA GLU GLN ALA GLU LYS ASN GLN ASN ALA PRO          
SEQRES  37 A  473  ALA ASP GLU ASN THR                                          
SEQRES   1 B  473  MET LYS THR ASP THR SER THR PHE LEU ALA GLN GLN ILE          
SEQRES   2 B  473  VAL ARG LEU ARG ARG ARG ASP GLN ILE ARG ARG LEU LEU          
SEQRES   3 B  473  GLN ARG ASP LYS THR PRO LEU ALA ILE LEU PHE MET ALA          
SEQRES   4 B  473  ALA VAL VAL GLY THR LEU THR GLY LEU VAL GLY VAL ALA          
SEQRES   5 B  473  PHE GLU LYS ALA VAL SER TRP VAL GLN ASN MET ARG ILE          
SEQRES   6 B  473  GLY ALA LEU VAL GLN VAL ALA ASP HIS ALA PHE LEU LEU          
SEQRES   7 B  473  TRP PRO LEU ALA PHE ILE LEU SER ALA LEU LEU ALA MET          
SEQRES   8 B  473  VAL GLY TYR PHE LEU VAL ARG LYS PHE ALA PRO GLU ALA          
SEQRES   9 B  473  GLY GLY SER GLY ILE PRO GLU ILE GLU GLY ALA LEU GLU          
SEQRES  10 B  473  GLU LEU ARG PRO VAL ARG TRP TRP ARG VAL LEU PRO VAL          
SEQRES  11 B  473  LYS PHE ILE GLY GLY MET GLY THR LEU GLY ALA GLY MET          
SEQRES  12 B  473  VAL LEU GLY ARG GLU GLY PRO THR VAL GLN ILE GLY GLY          
SEQRES  13 B  473  ASN LEU GLY ARG MET VAL LEU ASP VAL PHE ARG MET ARG          
SEQRES  14 B  473  SER ALA GLU ALA ARG HIS THR LEU LEU ALA THR GLY ALA          
SEQRES  15 B  473  ALA ALA GLY LEU SER ALA ALA PHE ASN ALA PRO LEU ALA          
SEQRES  16 B  473  GLY ILE LEU PHE ILE ILE GLU GLU MET ARG PRO GLN PHE          
SEQRES  17 B  473  ARG TYR ASN LEU ILE SER ILE LYS ALA VAL PHE THR GLY          
SEQRES  18 B  473  VAL ILE MET SER SER ILE VAL PHE ARG ILE PHE ASN GLY          
SEQRES  19 B  473  GLU ALA PRO ILE ILE GLU VAL GLY LYS LEU SER ASP ALA          
SEQRES  20 B  473  PRO VAL ASN THR LEU TRP LEU TYR LEU ILE LEU GLY ILE          
SEQRES  21 B  473  ILE PHE GLY VAL VAL GLY PRO VAL PHE ASN SER LEU VAL          
SEQRES  22 B  473  LEU ARG THR GLN ASP MET PHE GLN ARG PHE HIS GLY GLY          
SEQRES  23 B  473  GLU ILE LYS LYS TRP VAL LEU MET GLY GLY ALA ILE GLY          
SEQRES  24 B  473  GLY LEU CYS GLY ILE LEU GLY LEU ILE GLU PRO ALA ALA          
SEQRES  25 B  473  ALA GLY GLY GLY PHE ASN LEU ILE PRO ILE ALA ALA ALA          
SEQRES  26 B  473  GLY ASN PHE SER VAL GLY LEU LEU LEU PHE ILE PHE ILE          
SEQRES  27 B  473  THR ARG VAL VAL THR THR LEU LEU CYS PHE SER SER GLY          
SEQRES  28 B  473  ALA PRO GLY GLY ILE PHE ALA PRO MET LEU ALA LEU GLY          
SEQRES  29 B  473  THR LEU LEU GLY THR ALA PHE GLY MET ALA ALA ALA VAL          
SEQRES  30 B  473  LEU PHE PRO GLN TYR HIS LEU GLU ALA GLY THR PHE ALA          
SEQRES  31 B  473  ILE ALA GLY MET GLY ALA LEU MET ALA ALA SER VAL ARG          
SEQRES  32 B  473  ALA PRO LEU THR GLY ILE VAL LEU VAL LEU GLU MET THR          
SEQRES  33 B  473  ASP ASN TYR GLN LEU ILE LEU PRO MET ILE ILE THR CYS          
SEQRES  34 B  473  LEU GLY ALA THR LEU LEU ALA GLN PHE LEU GLY GLY LYS          
SEQRES  35 B  473  PRO LEU TYR SER THR ILE LEU ALA ARG THR LEU ALA LYS          
SEQRES  36 B  473  GLN ASP ALA GLU GLN ALA GLU LYS ASN GLN ASN ALA PRO          
SEQRES  37 B  473  ALA ASP GLU ASN THR                                          
SEQRES   1 C  473  MET LYS THR ASP THR SER THR PHE LEU ALA GLN GLN ILE          
SEQRES   2 C  473  VAL ARG LEU ARG ARG ARG ASP GLN ILE ARG ARG LEU LEU          
SEQRES   3 C  473  GLN ARG ASP LYS THR PRO LEU ALA ILE LEU PHE MET ALA          
SEQRES   4 C  473  ALA VAL VAL GLY THR LEU THR GLY LEU VAL GLY VAL ALA          
SEQRES   5 C  473  PHE GLU LYS ALA VAL SER TRP VAL GLN ASN MET ARG ILE          
SEQRES   6 C  473  GLY ALA LEU VAL GLN VAL ALA ASP HIS ALA PHE LEU LEU          
SEQRES   7 C  473  TRP PRO LEU ALA PHE ILE LEU SER ALA LEU LEU ALA MET          
SEQRES   8 C  473  VAL GLY TYR PHE LEU VAL ARG LYS PHE ALA PRO GLU ALA          
SEQRES   9 C  473  GLY GLY SER GLY ILE PRO GLU ILE GLU GLY ALA LEU GLU          
SEQRES  10 C  473  GLU LEU ARG PRO VAL ARG TRP TRP ARG VAL LEU PRO VAL          
SEQRES  11 C  473  LYS PHE ILE GLY GLY MET GLY THR LEU GLY ALA GLY MET          
SEQRES  12 C  473  VAL LEU GLY ARG GLU GLY PRO THR VAL GLN ILE GLY GLY          
SEQRES  13 C  473  ASN LEU GLY ARG MET VAL LEU ASP VAL PHE ARG MET ARG          
SEQRES  14 C  473  SER ALA GLU ALA ARG HIS THR LEU LEU ALA THR GLY ALA          
SEQRES  15 C  473  ALA ALA GLY LEU SER ALA ALA PHE ASN ALA PRO LEU ALA          
SEQRES  16 C  473  GLY ILE LEU PHE ILE ILE GLU GLU MET ARG PRO GLN PHE          
SEQRES  17 C  473  ARG TYR ASN LEU ILE SER ILE LYS ALA VAL PHE THR GLY          
SEQRES  18 C  473  VAL ILE MET SER SER ILE VAL PHE ARG ILE PHE ASN GLY          
SEQRES  19 C  473  GLU ALA PRO ILE ILE GLU VAL GLY LYS LEU SER ASP ALA          
SEQRES  20 C  473  PRO VAL ASN THR LEU TRP LEU TYR LEU ILE LEU GLY ILE          
SEQRES  21 C  473  ILE PHE GLY VAL VAL GLY PRO VAL PHE ASN SER LEU VAL          
SEQRES  22 C  473  LEU ARG THR GLN ASP MET PHE GLN ARG PHE HIS GLY GLY          
SEQRES  23 C  473  GLU ILE LYS LYS TRP VAL LEU MET GLY GLY ALA ILE GLY          
SEQRES  24 C  473  GLY LEU CYS GLY ILE LEU GLY LEU ILE GLU PRO ALA ALA          
SEQRES  25 C  473  ALA GLY GLY GLY PHE ASN LEU ILE PRO ILE ALA ALA ALA          
SEQRES  26 C  473  GLY ASN PHE SER VAL GLY LEU LEU LEU PHE ILE PHE ILE          
SEQRES  27 C  473  THR ARG VAL VAL THR THR LEU LEU CYS PHE SER SER GLY          
SEQRES  28 C  473  ALA PRO GLY GLY ILE PHE ALA PRO MET LEU ALA LEU GLY          
SEQRES  29 C  473  THR LEU LEU GLY THR ALA PHE GLY MET ALA ALA ALA VAL          
SEQRES  30 C  473  LEU PHE PRO GLN TYR HIS LEU GLU ALA GLY THR PHE ALA          
SEQRES  31 C  473  ILE ALA GLY MET GLY ALA LEU MET ALA ALA SER VAL ARG          
SEQRES  32 C  473  ALA PRO LEU THR GLY ILE VAL LEU VAL LEU GLU MET THR          
SEQRES  33 C  473  ASP ASN TYR GLN LEU ILE LEU PRO MET ILE ILE THR CYS          
SEQRES  34 C  473  LEU GLY ALA THR LEU LEU ALA GLN PHE LEU GLY GLY LYS          
SEQRES  35 C  473  PRO LEU TYR SER THR ILE LEU ALA ARG THR LEU ALA LYS          
SEQRES  36 C  473  GLN ASP ALA GLU GLN ALA GLU LYS ASN GLN ASN ALA PRO          
SEQRES  37 C  473  ALA ASP GLU ASN THR                                          
SEQRES   1 D  473  MET LYS THR ASP THR SER THR PHE LEU ALA GLN GLN ILE          
SEQRES   2 D  473  VAL ARG LEU ARG ARG ARG ASP GLN ILE ARG ARG LEU LEU          
SEQRES   3 D  473  GLN ARG ASP LYS THR PRO LEU ALA ILE LEU PHE MET ALA          
SEQRES   4 D  473  ALA VAL VAL GLY THR LEU THR GLY LEU VAL GLY VAL ALA          
SEQRES   5 D  473  PHE GLU LYS ALA VAL SER TRP VAL GLN ASN MET ARG ILE          
SEQRES   6 D  473  GLY ALA LEU VAL GLN VAL ALA ASP HIS ALA PHE LEU LEU          
SEQRES   7 D  473  TRP PRO LEU ALA PHE ILE LEU SER ALA LEU LEU ALA MET          
SEQRES   8 D  473  VAL GLY TYR PHE LEU VAL ARG LYS PHE ALA PRO GLU ALA          
SEQRES   9 D  473  GLY GLY SER GLY ILE PRO GLU ILE GLU GLY ALA LEU GLU          
SEQRES  10 D  473  GLU LEU ARG PRO VAL ARG TRP TRP ARG VAL LEU PRO VAL          
SEQRES  11 D  473  LYS PHE ILE GLY GLY MET GLY THR LEU GLY ALA GLY MET          
SEQRES  12 D  473  VAL LEU GLY ARG GLU GLY PRO THR VAL GLN ILE GLY GLY          
SEQRES  13 D  473  ASN LEU GLY ARG MET VAL LEU ASP VAL PHE ARG MET ARG          
SEQRES  14 D  473  SER ALA GLU ALA ARG HIS THR LEU LEU ALA THR GLY ALA          
SEQRES  15 D  473  ALA ALA GLY LEU SER ALA ALA PHE ASN ALA PRO LEU ALA          
SEQRES  16 D  473  GLY ILE LEU PHE ILE ILE GLU GLU MET ARG PRO GLN PHE          
SEQRES  17 D  473  ARG TYR ASN LEU ILE SER ILE LYS ALA VAL PHE THR GLY          
SEQRES  18 D  473  VAL ILE MET SER SER ILE VAL PHE ARG ILE PHE ASN GLY          
SEQRES  19 D  473  GLU ALA PRO ILE ILE GLU VAL GLY LYS LEU SER ASP ALA          
SEQRES  20 D  473  PRO VAL ASN THR LEU TRP LEU TYR LEU ILE LEU GLY ILE          
SEQRES  21 D  473  ILE PHE GLY VAL VAL GLY PRO VAL PHE ASN SER LEU VAL          
SEQRES  22 D  473  LEU ARG THR GLN ASP MET PHE GLN ARG PHE HIS GLY GLY          
SEQRES  23 D  473  GLU ILE LYS LYS TRP VAL LEU MET GLY GLY ALA ILE GLY          
SEQRES  24 D  473  GLY LEU CYS GLY ILE LEU GLY LEU ILE GLU PRO ALA ALA          
SEQRES  25 D  473  ALA GLY GLY GLY PHE ASN LEU ILE PRO ILE ALA ALA ALA          
SEQRES  26 D  473  GLY ASN PHE SER VAL GLY LEU LEU LEU PHE ILE PHE ILE          
SEQRES  27 D  473  THR ARG VAL VAL THR THR LEU LEU CYS PHE SER SER GLY          
SEQRES  28 D  473  ALA PRO GLY GLY ILE PHE ALA PRO MET LEU ALA LEU GLY          
SEQRES  29 D  473  THR LEU LEU GLY THR ALA PHE GLY MET ALA ALA ALA VAL          
SEQRES  30 D  473  LEU PHE PRO GLN TYR HIS LEU GLU ALA GLY THR PHE ALA          
SEQRES  31 D  473  ILE ALA GLY MET GLY ALA LEU MET ALA ALA SER VAL ARG          
SEQRES  32 D  473  ALA PRO LEU THR GLY ILE VAL LEU VAL LEU GLU MET THR          
SEQRES  33 D  473  ASP ASN TYR GLN LEU ILE LEU PRO MET ILE ILE THR CYS          
SEQRES  34 D  473  LEU GLY ALA THR LEU LEU ALA GLN PHE LEU GLY GLY LYS          
SEQRES  35 D  473  PRO LEU TYR SER THR ILE LEU ALA ARG THR LEU ALA LYS          
SEQRES  36 D  473  GLN ASP ALA GLU GLN ALA GLU LYS ASN GLN ASN ALA PRO          
SEQRES  37 D  473  ALA ASP GLU ASN THR                                          
HET     CL  A 503       1                                                       
HET    SO4  A 506       5                                                       
HET    OCT  A 502       8                                                       
HET     CL  B 504       1                                                       
HET    SO4  B 505       5                                                       
HET    SO4  B 605       5                                                       
HET    MYS  B 501      15                                                       
HET     CL  C 603       1                                                       
HET    SO4  C 606       5                                                       
HET    OCT  C 602       8                                                       
HET     CL  D 604       1                                                       
HET    MYS  D 601      15                                                       
HETNAM      CL CHLORIDE ION                                                     
HETNAM     SO4 SULFATE ION                                                      
HETNAM     OCT N-OCTANE                                                         
HETNAM     MYS PENTADECANE                                                      
FORMUL   5   CL    4(CL 1-)                                                     
FORMUL   6  SO4    4(O4 S 2-)                                                   
FORMUL   7  OCT    2(C8 H18)                                                    
FORMUL  11  MYS    2(C15 H32)                                                   
FORMUL  17  HOH   *2(H2 O)                                                      
HELIX    1   1 THR A   31  ALA A   67  1                                  37    
HELIX    2   2 VAL A   69  ASP A   73  5                                   5    
HELIX    3   3 HIS A   74  PHE A  100  1                                  27    
HELIX    4   4 ALA A  101  GLY A  105  5                                   5    
HELIX    5   5 GLY A  108  GLU A  117  1                                  10    
HELIX    6   6 ARG A  123  ALA A  141  1                                  19    
HELIX    7   7 ARG A  147  VAL A  165  1                                  19    
HELIX    8   8 SER A  170  ASN A  191  1                                  22    
HELIX    9   9 ALA A  192  GLU A  203  1                                  12    
HELIX   10  10 SER A  214  GLY A  234  1                                  21    
HELIX   11  11 PRO A  248  ASN A  250  5                                   3    
HELIX   12  12 THR A  251  GLY A  285  1                                  35    
HELIX   13  13 GLU A  287  ILE A  308  1                                  22    
HELIX   14  14 GLU A  309  ALA A  313  5                                   5    
HELIX   15  15 LEU A  319  ALA A  325  1                                   7    
HELIX   16  16 SER A  329  GLY A  351  1                                  23    
HELIX   17  17 ILE A  356  PHE A  379  1                                  24    
HELIX   18  18 PRO A  380  HIS A  383  5                                   4    
HELIX   19  19 GLU A  385  GLY A  395  1                                  11    
HELIX   20  20 GLY A  395  VAL A  402  1                                   8    
HELIX   21  21 ALA A  404  ASP A  417  1                                  14    
HELIX   22  22 ASN A  418  GLN A  420  5                                   3    
HELIX   23  23 LEU A  421  LEU A  439  1                                  19    
HELIX   24  24 PRO A  443  GLN A  460  1                                  18    
HELIX   25  25 GLN B   12  LEU B   26  1                                  15    
HELIX   26  26 PRO B   32  LEU B   68  1                                  37    
HELIX   27  27 HIS B   74  LEU B   77  5                                   4    
HELIX   28  28 LEU B   78  ALA B  101  1                                  24    
HELIX   29  29 PRO B  102  GLY B  105  5                                   4    
HELIX   30  30 GLY B  108  LEU B  116  1                                   9    
HELIX   31  31 ARG B  123  GLY B  142  1                                  20    
HELIX   32  32 ARG B  147  PHE B  166  1                                  20    
HELIX   33  33 SER B  170  ASN B  191  1                                  22    
HELIX   34  34 ALA B  192  MET B  204  1                                  13    
HELIX   35  35 MET B  204  TYR B  210  1                                   7    
HELIX   36  36 SER B  214  GLY B  234  1                                  21    
HELIX   37  37 LEU B  252  GLY B  285  1                                  34    
HELIX   38  38 GLU B  287  ILE B  308  1                                  22    
HELIX   39  39 GLU B  309  ALA B  313  5                                   5    
HELIX   40  40 LEU B  319  ALA B  324  1                                   6    
HELIX   41  41 SER B  329  GLY B  351  1                                  23    
HELIX   42  42 ILE B  356  PHE B  379  1                                  24    
HELIX   43  43 PRO B  380  HIS B  383  5                                   4    
HELIX   44  44 GLU B  385  GLY B  395  1                                  11    
HELIX   45  45 GLY B  395  VAL B  402  1                                   8    
HELIX   46  46 ALA B  404  ASP B  417  1                                  14    
HELIX   47  47 ASN B  418  GLN B  420  5                                   3    
HELIX   48  48 LEU B  421  LEU B  439  1                                  19    
HELIX   49  49 PRO B  443  ALA B  461  1                                  19    
HELIX   50  50 THR C   31  ALA C   67  1                                  37    
HELIX   51  51 VAL C   69  ASP C   73  5                                   5    
HELIX   52  52 HIS C   74  PHE C  100  1                                  27    
HELIX   53  53 ALA C  101  GLY C  105  5                                   5    
HELIX   54  54 GLY C  108  GLU C  117  1                                  10    
HELIX   55  55 ARG C  123  ALA C  141  1                                  19    
HELIX   56  56 ARG C  147  VAL C  165  1                                  19    
HELIX   57  57 SER C  170  ASN C  191  1                                  22    
HELIX   58  58 ALA C  192  GLU C  203  1                                  12    
HELIX   59  59 SER C  214  GLY C  234  1                                  21    
HELIX   60  60 PRO C  248  ASN C  250  5                                   3    
HELIX   61  61 THR C  251  GLY C  285  1                                  35    
HELIX   62  62 GLU C  287  ILE C  308  1                                  22    
HELIX   63  63 GLU C  309  ALA C  313  5                                   5    
HELIX   64  64 LEU C  319  ALA C  325  1                                   7    
HELIX   65  65 SER C  329  GLY C  351  1                                  23    
HELIX   66  66 ILE C  356  PHE C  379  1                                  24    
HELIX   67  67 PRO C  380  HIS C  383  5                                   4    
HELIX   68  68 GLU C  385  GLY C  395  1                                  11    
HELIX   69  69 GLY C  395  VAL C  402  1                                   8    
HELIX   70  70 ALA C  404  ASP C  417  1                                  14    
HELIX   71  71 ASN C  418  GLN C  420  5                                   3    
HELIX   72  72 LEU C  421  LEU C  439  1                                  19    
HELIX   73  73 PRO C  443  GLN C  460  1                                  18    
HELIX   74  74 GLN D   12  LEU D   26  1                                  15    
HELIX   75  75 PRO D   32  LEU D   68  1                                  37    
HELIX   76  76 HIS D   74  LEU D   77  5                                   4    
HELIX   77  77 LEU D   78  ALA D  101  1                                  24    
HELIX   78  78 PRO D  102  GLY D  105  5                                   4    
HELIX   79  79 GLY D  108  LEU D  116  1                                   9    
HELIX   80  80 ARG D  123  GLY D  142  1                                  20    
HELIX   81  81 ARG D  147  PHE D  166  1                                  20    
HELIX   82  82 SER D  170  ASN D  191  1                                  22    
HELIX   83  83 ALA D  192  MET D  204  1                                  13    
HELIX   84  84 MET D  204  TYR D  210  1                                   7    
HELIX   85  85 SER D  214  GLY D  234  1                                  21    
HELIX   86  86 LEU D  252  GLY D  285  1                                  34    
HELIX   87  87 GLU D  287  ILE D  308  1                                  22    
HELIX   88  88 GLU D  309  ALA D  313  5                                   5    
HELIX   89  89 LEU D  319  ALA D  324  1                                   6    
HELIX   90  90 SER D  329  GLY D  351  1                                  23    
HELIX   91  91 ILE D  356  PHE D  379  1                                  24    
HELIX   92  92 PRO D  380  HIS D  383  5                                   4    
HELIX   93  93 GLU D  385  GLY D  395  1                                  11    
HELIX   94  94 GLY D  395  VAL D  402  1                                   8    
HELIX   95  95 ALA D  404  ASP D  417  1                                  14    
HELIX   96  96 ASN D  418  GLN D  420  5                                   3    
HELIX   97  97 LEU D  421  LEU D  439  1                                  19    
HELIX   98  98 PRO D  443  ALA D  461  1                                  19    
SITE     1 AC1  5 SER A 107  GLY A 355  ILE A 356  PHE A 357                    
SITE     2 AC1  5 TYR A 445                                                     
SITE     1 AC2  5 SER B 107  GLY B 355  ILE B 356  PHE B 357                    
SITE     2 AC2  5 TYR B 445                                                     
SITE     1 AC3  5 ARG A 209  ARG B  17  MET D 168  ARG D 169                    
SITE     2 AC3  5 SER D 170                                                     
SITE     1 AC4  7 ARG A 205  ARG A 209  ASN A 211  LEU A 212                    
SITE     2 AC4  7 ILE A 213  ARG B 205  ARG B 209                               
SITE     1 AC5  5 SER C 107  GLY C 355  ILE C 356  PHE C 357                    
SITE     2 AC5  5 TYR C 445                                                     
SITE     1 AC6  5 SER D 107  GLY D 355  ILE D 356  PHE D 357                    
SITE     2 AC6  5 TYR D 445                                                     
SITE     1 AC7  5 MET B 168  ARG B 169  SER B 170  ARG C 209                    
SITE     2 AC7  5 ARG D  17                                                     
SITE     1 AC8  7 ARG C 205  ARG C 209  ASN C 211  LEU C 212                    
SITE     2 AC8  7 ILE C 213  ARG D 205  ARG D 209                               
SITE     1 AC9  2 ILE A 227  LEU B 256                                          
SITE     1 BC1  2 ILE C 227  LEU D 256                                          
CRYST1  185.719   90.159   80.753  90.00  98.95  90.00 P 1 21 1      8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.005384  0.000000  0.000848        0.00000                         
SCALE2      0.000000  0.011092  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012536        0.00000                         
MTRIX1   1  1.000000  0.000000  0.000000        0.00000    1                    
MTRIX2   1  0.000000  1.000000  0.000000        0.00000    1                    
MTRIX3   1  0.000000  0.000000  1.000000        0.00000    1                    
MTRIX1   2 -0.876570  0.481260  0.003800       62.70105    1                    
MTRIX2   2  0.480020  0.874810 -0.065450      -15.74265    1                    
MTRIX3   2 -0.034830 -0.055550 -0.997850        5.73088    1