HEADER    MEMBRANE PROTEIN                        29-FEB-20   6W0H              
TITLE     CLOSED-GATE KCSA SOAKED IN 5MM KCL/5MM BACL2                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: FAB HEAVY CHAIN;                                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: FAB LIGHT CHAIN;                                           
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: PH-GATED POTASSIUM CHANNEL KCSA;                           
COMPND  11 CHAIN: C;                                                            
COMPND  12 SYNONYM: STREPTOMYCES LIVIDANS K+ CHANNEL,SKC1;                      
COMPND  13 ENGINEERED: YES;                                                     
COMPND  14 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS;                              
SOURCE   3 ORGANISM_TAXID: 10116;                                               
SOURCE   4 EXPRESSION_SYSTEM: HOMO SAPIENS;                                     
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 9606;                                       
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS;                              
SOURCE   8 ORGANISM_TAXID: 10116;                                               
SOURCE   9 EXPRESSION_SYSTEM: HOMO SAPIENS;                                     
SOURCE  10 EXPRESSION_SYSTEM_TAXID: 9606;                                       
SOURCE  11 MOL_ID: 3;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS;                          
SOURCE  13 ORGANISM_TAXID: 1916;                                                
SOURCE  14 GENE: KCSA, SKC1;                                                    
SOURCE  15 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  16 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    ION CHANNEL, MEMBRANE PROTEIN                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.ROHAIM,L.GONG,J.LI                                                  
REVDAT   5   16-OCT-24 6W0H    1       REMARK                                   
REVDAT   4   11-OCT-23 6W0H    1       REMARK                                   
REVDAT   3   19-AUG-20 6W0H    1       JRNL   LINK                              
REVDAT   2   15-JUL-20 6W0H    1       JRNL                                     
REVDAT   1   08-JUL-20 6W0H    0                                                
JRNL        AUTH   A.ROHAIM,L.GONG,J.LI,H.RUI,L.BLACHOWICZ,B.ROUX               
JRNL        TITL   OPEN AND CLOSED STRUCTURES OF A BARIUM-BLOCKED POTASSIUM     
JRNL        TITL 2 CHANNEL.                                                     
JRNL        REF    J.MOL.BIOL.                   V. 432  4783 2020              
JRNL        REFN                   ESSN 1089-8638                               
JRNL        PMID   32615129                                                     
JRNL        DOI    10.1016/J.JMB.2020.06.012                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.14_3260                                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 68.01                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.330                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 27603                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.197                           
REMARK   3   R VALUE            (WORKING SET) : 0.194                           
REMARK   3   FREE R VALUE                     : 0.239                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.080                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1402                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 68.0100 -  5.6013    0.99     2746   135  0.1880 0.1904        
REMARK   3     2  5.6013 -  4.4462    1.00     2688   125  0.1522 0.1841        
REMARK   3     3  4.4462 -  3.8842    1.00     2666   137  0.1547 0.1937        
REMARK   3     4  3.8842 -  3.5291    1.00     2664   123  0.1687 0.2143        
REMARK   3     5  3.5291 -  3.2762    1.00     2664   146  0.1993 0.2933        
REMARK   3     6  3.2762 -  3.0830    0.99     2628   146  0.2069 0.2735        
REMARK   3     7  3.0830 -  2.9286    0.99     2608   144  0.2298 0.2556        
REMARK   3     8  2.9286 -  2.8011    0.99     2606   161  0.2631 0.3358        
REMARK   3     9  2.8011 -  2.6933    0.97     2544   145  0.2982 0.3329        
REMARK   3    10  2.6933 -  2.6003    0.91     2387   140  0.3420 0.3952        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.410            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 25.790           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 47.47                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.008           4120                                  
REMARK   3   ANGLE     :  1.006           5635                                  
REMARK   3   CHIRALITY :  0.053            646                                  
REMARK   3   PLANARITY :  0.006            714                                  
REMARK   3   DIHEDRAL  :  3.509           2409                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 3                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: (CHAIN A AND RESSEQ 1:219)                             
REMARK   3    ORIGIN FOR THE GROUP (A):  37.9655  21.3563   5.2120              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0840 T22:   0.4612                                     
REMARK   3      T33:   0.2062 T12:  -0.2423                                     
REMARK   3      T13:   0.0473 T23:   0.0021                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.8209 L22:   0.5062                                     
REMARK   3      L33:   0.7728 L12:   0.1397                                     
REMARK   3      L13:  -0.1014 L23:  -0.1492                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0151 S12:  -0.0628 S13:  -0.1673                       
REMARK   3      S21:   0.0682 S22:  -0.1572 S23:  -0.1224                       
REMARK   3      S31:  -0.2394 S32:   0.7170 S33:  -0.1106                       
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: (CHAIN B AND RESSEQ 1:212)                             
REMARK   3    ORIGIN FOR THE GROUP (A):  26.1166  25.7652  -7.0659              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2716 T22:   0.3776                                     
REMARK   3      T33:   0.1512 T12:  -0.1231                                     
REMARK   3      T13:   0.0038 T23:  -0.0314                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.2147 L22:   0.8807                                     
REMARK   3      L33:   0.6228 L12:   0.1176                                     
REMARK   3      L13:  -0.0856 L23:  -0.1550                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0154 S12:   0.2335 S13:  -0.0156                       
REMARK   3      S21:  -0.1577 S22:   0.0364 S23:   0.0849                       
REMARK   3      S31:  -0.2760 S32:   0.0849 S33:  -0.0011                       
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    SELECTION: (CHAIN C AND RESSEQ 22:124)                            
REMARK   3    ORIGIN FOR THE GROUP (A):  10.1519   5.5658  42.3474              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1377 T22:   0.1478                                     
REMARK   3      T33:   0.2958 T12:  -0.0358                                     
REMARK   3      T13:   0.0298 T23:  -0.0256                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.6011 L22:   0.6146                                     
REMARK   3      L33:   1.0686 L12:  -0.0482                                     
REMARK   3      L13:   0.1670 L23:  -0.4459                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0705 S12:  -0.1933 S13:  -0.0083                       
REMARK   3      S21:   0.1570 S22:  -0.1163 S23:   0.0548                       
REMARK   3      S31:  -0.4358 S32:   0.1631 S33:  -0.0777                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 6W0H COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-MAR-20.                  
REMARK 100 THE DEPOSITION ID IS D_1000247407.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 28-OCT-18                          
REMARK 200  TEMPERATURE           (KELVIN) : 98                                 
REMARK 200  PH                             : 5.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 24-ID-C                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9791                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M-F               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : AIMLESS                            
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 28030                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 68.012                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 9.000                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.9000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.70                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 1K4C                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 69.01                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.97                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 20 % PEG 400, 50 MM MAGNESIUM ACETATE,   
REMARK 280  50 MM SODIUM ACETATE, PH 5.5, VAPOR DIFFUSION, HANGING DROP,        
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -Y,X,Z                                                  
REMARK 290       4555   Y,-X,Z                                                  
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -Y+1/2,X+1/2,Z+1/2                                      
REMARK 290       8555   Y+1/2,-X+1/2,Z+1/2                                      
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        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       77.92450            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       77.92450            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       37.79450            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       77.92450            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       77.92450            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       37.79450            
REMARK 290   SMTRY1   7  0.000000 -1.000000  0.000000       77.92450            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000       77.92450            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       37.79450            
REMARK 290   SMTRY1   8  0.000000  1.000000  0.000000       77.92450            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000       77.92450            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       37.79450            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
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 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: DODECAMERIC                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
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 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
REMARK 350   BIOMT1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
REMARK 350   BIOMT1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375 K      K C 202  LIES ON A SPECIAL POSITION.                          
REMARK 375 K      K C 203  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH C 301  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH C 316  LIES ON A SPECIAL POSITION.                          
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     GLN A   1    N                                                   
REMARK 470     LYS A  23    CG   CD   CE   NZ                                   
REMARK 470     LYS A  63    CG   CD   CE   NZ                                   
REMARK 470     GLN A  65    CG   CD   OE1  NE2                                  
REMARK 470     LYS A  74    CG   CD   CE   NZ                                   
REMARK 470     GLU A  89    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 120    CG   CD   CE   NZ                                   
REMARK 470     GLN A 136    CG   CD   OE1  NE2                                  
REMARK 470     THR A 137    OG1  CG2                                            
REMARK 470     ASN A 138    CG   OD1  ND2                                       
REMARK 470     SER A 165    OG                                                  
REMARK 470     SER A 166    OG                                                  
REMARK 470     SER A 177    OG                                                  
REMARK 470     ASP A 178    CG   OD1  OD2                                       
REMARK 470     ASP A 219    CG   OD1  OD2                                       
REMARK 470     ASN B 212    CG   OD1  ND2                                       
REMARK 470     SER C  22    OG                                                  
REMARK 470     ARG C 117    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     HIS C 124    CG   ND1  CD2  CE1  NE2                             
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   OG1  THR B     5     O    HOH B   301              1.93            
REMARK 500   NH1  ARG B    45     O    HOH B   302              2.04            
REMARK 500   O    ASP A   102     OH   TYR B    50              2.04            
REMARK 500   NH1  ARG A    57     O    HOH A   301              2.05            
REMARK 500   OG   SER B    91     O    HOH B   303              2.09            
REMARK 500   OE1  GLN A     5     O    HOH A   302              2.11            
REMARK 500   O    LEU A    11     O    HOH A   303              2.18            
REMARK 500   OD1  ASP A    90     O    HOH A   304              2.19            
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    CYS A 200   CA  -  CB  -  SG  ANGL. DEV. =   7.1 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    SER A  85       64.18     64.56                                   
REMARK 500    ALA B  51      -33.42     77.46                                   
REMARK 500    SER B  52      -10.39   -147.49                                   
REMARK 500    SER B  77       91.58     63.27                                   
REMARK 500    ALA B  84      177.32    178.36                                   
REMARK 500    ASP B 170       16.96   -142.92                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K C 201   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR C  75   O                                                      
REMARK 620 2 THR C  75   O     0.0                                              
REMARK 620 3 VAL C  76   O    74.4  74.4                                        
REMARK 620 4 VAL C  76   O    74.4  74.4   0.0                                  
REMARK 620 5 HOH C 301   O   118.8 118.8  52.3  52.3                            
REMARK 620 6 HOH C 301   O   118.8 118.8  52.3  52.3   0.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K C 203   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR C  75   O                                                      
REMARK 620 2 THR C  75   OG1  63.6                                              
REMARK 620 3 THR C  75   O     0.0  63.6                                        
REMARK 620 4 THR C  75   OG1  63.6   0.0  63.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K C 202   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY C  77   O                                                      
REMARK 620 2 GLY C  77   O     0.0                                              
REMARK 620 3 TYR C  78   O    76.8  76.8                                        
REMARK 620 4 TYR C  78   O    76.8  76.8   0.0                                  
REMARK 620 5 HOH C 301   O    43.7  43.7 117.9 117.9                            
REMARK 620 6 HOH C 301   O    43.7  43.7 117.9 117.9   0.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K C 201                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K C 202                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K C 203                   
DBREF  6W0H A    1   219  PDB    6W0H     6W0H             1    219             
DBREF  6W0H B    1   212  PDB    6W0H     6W0H             1    212             
DBREF  6W0H C   22   124  UNP    P0A334   KCSA_STRLI      22    124             
SEQADV 6W0H CYS C   90  UNP  P0A334    LEU    90 ENGINEERED MUTATION            
SEQRES   1 A  219  GLN VAL GLN LEU GLN GLN PRO GLY ALA GLU LEU VAL LYS          
SEQRES   2 A  219  PRO GLY ALA SER VAL LYS LEU SER CYS LYS ALA SER GLY          
SEQRES   3 A  219  TYR THR PHE THR SER ASP TRP ILE HIS TRP VAL LYS GLN          
SEQRES   4 A  219  ARG PRO GLY HIS GLY LEU GLU TRP ILE GLY GLU ILE ILE          
SEQRES   5 A  219  PRO SER TYR GLY ARG ALA ASN TYR ASN GLU LYS ILE GLN          
SEQRES   6 A  219  LYS LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR          
SEQRES   7 A  219  ALA PHE MET GLN LEU SER SER LEU THR SER GLU ASP SER          
SEQRES   8 A  219  ALA VAL TYR TYR CYS ALA ARG GLU ARG GLY ASP GLY TYR          
SEQRES   9 A  219  PHE ALA VAL TRP GLY ALA GLY THR THR VAL THR VAL SER          
SEQRES  10 A  219  SER ALA LYS THR THR PRO PRO SER VAL TYR PRO LEU ALA          
SEQRES  11 A  219  PRO GLY SER ALA ALA GLN THR ASN SER MET VAL THR LEU          
SEQRES  12 A  219  GLY CYS LEU VAL LYS GLY TYR PHE PRO GLU PRO VAL THR          
SEQRES  13 A  219  VAL THR TRP ASN SER GLY SER LEU SER SER GLY VAL HIS          
SEQRES  14 A  219  THR PHE PRO ALA VAL LEU GLN SER ASP LEU TYR THR LEU          
SEQRES  15 A  219  SER SER SER VAL THR VAL PRO SER SER SER TRP PRO SER          
SEQRES  16 A  219  GLU THR VAL THR CYS ASN VAL ALA HIS PRO ALA SER SER          
SEQRES  17 A  219  THR LYS VAL ASP LYS LYS ILE VAL PRO ARG ASP                  
SEQRES   1 B  212  ASP ILE LEU LEU THR GLN SER PRO ALA ILE LEU SER VAL          
SEQRES   2 B  212  SER PRO GLY GLU ARG VAL SER PHE SER CYS ARG ALA SER          
SEQRES   3 B  212  GLN SER ILE GLY THR ASP ILE HIS TRP TYR GLN GLN ARG          
SEQRES   4 B  212  THR ASN GLY SER PRO ARG LEU LEU ILE LYS TYR ALA SER          
SEQRES   5 B  212  GLU SER ILE SER GLY ILE PRO SER ARG PHE SER GLY SER          
SEQRES   6 B  212  GLY SER GLY THR ASP PHE THR LEU SER ILE ASN SER VAL          
SEQRES   7 B  212  GLU SER GLU ASP ILE ALA ASN TYR TYR CYS GLN GLN SER          
SEQRES   8 B  212  ASN ARG TRP PRO PHE THR PHE GLY SER GLY THR LYS LEU          
SEQRES   9 B  212  GLU ILE LYS ARG ALA ASP ALA ALA PRO THR VAL SER ILE          
SEQRES  10 B  212  PHE PRO PRO SER SER GLU GLN LEU THR SER GLY GLY ALA          
SEQRES  11 B  212  SER VAL VAL CYS PHE LEU ASN ASN PHE TYR PRO LYS ASP          
SEQRES  12 B  212  ILE ASN VAL LYS TRP LYS ILE ASP GLY SER GLU ARG GLN          
SEQRES  13 B  212  ASN GLY VAL LEU ASN SER TRP THR ASP GLN ASP SER LYS          
SEQRES  14 B  212  ASP SER THR TYR SER MET SER SER THR LEU THR LEU THR          
SEQRES  15 B  212  LYS ASP GLU TYR GLU ARG HIS ASN SER TYR THR CYS GLU          
SEQRES  16 B  212  ALA THR HIS LYS THR SER THR SER PRO ILE VAL LYS SER          
SEQRES  17 B  212  PHE ASN ARG ASN                                              
SEQRES   1 C  103  SER ALA LEU HIS TRP ARG ALA ALA GLY ALA ALA THR VAL          
SEQRES   2 C  103  LEU LEU VAL ILE VAL LEU LEU ALA GLY SER TYR LEU ALA          
SEQRES   3 C  103  VAL LEU ALA GLU ARG GLY ALA PRO GLY ALA GLN LEU ILE          
SEQRES   4 C  103  THR TYR PRO ARG ALA LEU TRP TRP SER VAL GLU THR ALA          
SEQRES   5 C  103  THR THR VAL GLY TYR GLY ASP LEU TYR PRO VAL THR LEU          
SEQRES   6 C  103  TRP GLY ARG CYS VAL ALA VAL VAL VAL MET VAL ALA GLY          
SEQRES   7 C  103  ILE THR SER PHE GLY LEU VAL THR ALA ALA LEU ALA THR          
SEQRES   8 C  103  TRP PHE VAL GLY ARG GLU GLN GLU ARG ARG GLY HIS              
HET      K  C 201       1                                                       
HET      K  C 202       1                                                       
HET      K  C 203       1                                                       
HETNAM       K POTASSIUM ION                                                    
FORMUL   4    K    3(K 1+)                                                      
FORMUL   7  HOH   *118(H2 O)                                                    
HELIX    1 AA1 THR A   87  SER A   91  5                                   5    
HELIX    2 AA2 SER A  191  TRP A  193  5                                   3    
HELIX    3 AA3 PRO A  205  SER A  208  5                                   4    
HELIX    4 AA4 GLU B   79  ILE B   83  5                                   5    
HELIX    5 AA5 SER B  121  THR B  126  1                                   6    
HELIX    6 AA6 LYS B  183  ARG B  188  1                                   6    
HELIX    7 AA7 ALA C   23  ARG C   52  1                                  30    
HELIX    8 AA8 THR C   61  THR C   74  1                                  14    
HELIX    9 AA9 THR C   85  ARG C  121  1                                  37    
SHEET    1 AA1 4 LEU A   4  GLN A   5  0                                        
SHEET    2 AA1 4 VAL A  18  ALA A  24 -1  O  LYS A  23   N  GLN A   5           
SHEET    3 AA1 4 THR A  78  LEU A  83 -1  O  MET A  81   N  LEU A  20           
SHEET    4 AA1 4 ALA A  68  ASP A  73 -1  N  THR A  69   O  GLN A  82           
SHEET    1 AA2 6 ALA A   9  VAL A  12  0                                        
SHEET    2 AA2 6 THR A 112  VAL A 116  1  O  THR A 115   N  GLU A  10           
SHEET    3 AA2 6 ALA A  92  GLU A  99 -1  N  ALA A  92   O  VAL A 114           
SHEET    4 AA2 6 TRP A  33  GLN A  39 -1  N  TRP A  33   O  GLU A  99           
SHEET    5 AA2 6 LEU A  45  ILE A  51 -1  O  GLU A  46   N  LYS A  38           
SHEET    6 AA2 6 ALA A  58  TYR A  60 -1  O  ASN A  59   N  GLU A  50           
SHEET    1 AA3 4 ALA A   9  VAL A  12  0                                        
SHEET    2 AA3 4 THR A 112  VAL A 116  1  O  THR A 115   N  GLU A  10           
SHEET    3 AA3 4 ALA A  92  GLU A  99 -1  N  ALA A  92   O  VAL A 114           
SHEET    4 AA3 4 PHE A 105  TRP A 108 -1  O  VAL A 107   N  ARG A  98           
SHEET    1 AA4 4 SER A 125  LEU A 129  0                                        
SHEET    2 AA4 4 MET A 140  TYR A 150 -1  O  LYS A 148   N  SER A 125           
SHEET    3 AA4 4 TYR A 180  PRO A 189 -1  O  TYR A 180   N  TYR A 150           
SHEET    4 AA4 4 VAL A 168  THR A 170 -1  N  HIS A 169   O  SER A 185           
SHEET    1 AA5 4 SER A 125  LEU A 129  0                                        
SHEET    2 AA5 4 MET A 140  TYR A 150 -1  O  LYS A 148   N  SER A 125           
SHEET    3 AA5 4 TYR A 180  PRO A 189 -1  O  TYR A 180   N  TYR A 150           
SHEET    4 AA5 4 VAL A 174  LEU A 175 -1  N  VAL A 174   O  THR A 181           
SHEET    1 AA6 3 THR A 156  TRP A 159  0                                        
SHEET    2 AA6 3 THR A 199  HIS A 204 -1  O  ASN A 201   N  THR A 158           
SHEET    3 AA6 3 THR A 209  LYS A 214 -1  O  THR A 209   N  HIS A 204           
SHEET    1 AA7 4 LEU B   4  THR B   5  0                                        
SHEET    2 AA7 4 VAL B  19  ALA B  25 -1  O  ARG B  24   N  THR B   5           
SHEET    3 AA7 4 ASP B  70  ILE B  75 -1  O  LEU B  73   N  PHE B  21           
SHEET    4 AA7 4 PHE B  62  SER B  67 -1  N  SER B  63   O  SER B  74           
SHEET    1 AA8 6 ILE B  10  VAL B  13  0                                        
SHEET    2 AA8 6 THR B 102  ILE B 106  1  O  GLU B 105   N  LEU B  11           
SHEET    3 AA8 6 ASN B  85  GLN B  90 -1  N  TYR B  86   O  THR B 102           
SHEET    4 AA8 6 ILE B  33  GLN B  38 -1  N  TYR B  36   O  TYR B  87           
SHEET    5 AA8 6 ARG B  45  LYS B  49 -1  O  LEU B  47   N  TRP B  35           
SHEET    6 AA8 6 GLU B  53  SER B  54 -1  O  GLU B  53   N  LYS B  49           
SHEET    1 AA9 4 ILE B  10  VAL B  13  0                                        
SHEET    2 AA9 4 THR B 102  ILE B 106  1  O  GLU B 105   N  LEU B  11           
SHEET    3 AA9 4 ASN B  85  GLN B  90 -1  N  TYR B  86   O  THR B 102           
SHEET    4 AA9 4 THR B  97  PHE B  98 -1  O  THR B  97   N  GLN B  90           
SHEET    1 AB1 4 THR B 114  PHE B 118  0                                        
SHEET    2 AB1 4 GLY B 129  PHE B 139 -1  O  ASN B 137   N  THR B 114           
SHEET    3 AB1 4 TYR B 173  THR B 182 -1  O  TYR B 173   N  PHE B 139           
SHEET    4 AB1 4 VAL B 159  TRP B 163 -1  N  SER B 162   O  SER B 176           
SHEET    1 AB2 4 SER B 153  ARG B 155  0                                        
SHEET    2 AB2 4 ILE B 144  ILE B 150 -1  N  ILE B 150   O  SER B 153           
SHEET    3 AB2 4 SER B 191  HIS B 198 -1  O  GLU B 195   N  LYS B 147           
SHEET    4 AB2 4 SER B 201  ASN B 210 -1  O  ILE B 205   N  ALA B 196           
SSBOND   1 CYS A   22    CYS A   96                          1555   1555  2.07  
SSBOND   2 CYS A  145    CYS A  200                          1555   1555  2.05  
SSBOND   3 CYS B   23    CYS B   88                          1555   1555  2.09  
SSBOND   4 CYS B  134    CYS B  194                          1555   1555  2.02  
LINK         O   THR C  75                 K     K C 201     1555   1555  2.68  
LINK         O   THR C  75                 K     K C 201     1555   4555  2.34  
LINK         O   THR C  75                 K     K C 203     1555   1555  2.78  
LINK         OG1 THR C  75                 K     K C 203     1555   1555  2.97  
LINK         O   THR C  75                 K     K C 203     1555   2555  2.78  
LINK         OG1 THR C  75                 K     K C 203     1555   2555  2.97  
LINK         O   VAL C  76                 K     K C 201     1555   1555  2.56  
LINK         O   VAL C  76                 K     K C 201     1555   4555  2.33  
LINK         O   GLY C  77                 K     K C 202     1555   1555  2.90  
LINK         O   GLY C  77                 K     K C 202     1555   2555  2.90  
LINK         O   TYR C  78                 K     K C 202     1555   1555  2.84  
LINK         O   TYR C  78                 K     K C 202     1555   2555  2.84  
LINK         K     K C 201                 O   HOH C 301     1555   1555  3.26  
LINK         K     K C 201                 O   HOH C 301     1555   2555  3.26  
LINK         K     K C 202                 O   HOH C 301     1555   1555  3.37  
LINK         K     K C 202                 O   HOH C 301     1555   2555  3.37  
CISPEP   1 PHE A  151    PRO A  152          0        -4.31                     
CISPEP   2 GLU A  153    PRO A  154          0        -0.65                     
CISPEP   3 TRP A  193    PRO A  194          0         3.60                     
CISPEP   4 SER B    7    PRO B    8          0         1.52                     
CISPEP   5 TRP B   94    PRO B   95          0        -2.39                     
CISPEP   6 TYR B  140    PRO B  141          0         2.78                     
SITE     1 AC1  3 THR C  75  VAL C  76    K C 203                               
SITE     1 AC2  2 GLY C  77  TYR C  78                                          
SITE     1 AC3  2 THR C  75    K C 201                                          
CRYST1  155.849  155.849   75.589  90.00  90.00  90.00 I 4           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      0.006416  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.006416  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013229        0.00000