HEADER    SIGNALING PROTEIN                       24-JAN-10   3LIA              
TITLE     CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF THE PUTATIVE         
TITLE    2 HISTIDINE KINASE MMHK1S-Z2                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HYPOTHETICAL SENSORY TRANSDUCTION HISTIDINE KINASE;        
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: EXTRACELLULAR DOMAIN (UNP RESIDUES 32-313);                
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: METHANOSARCINA MAZEI;                           
SOURCE   3 ORGANISM_COMMON: METHANOSARCINA FRISIA;                              
SOURCE   4 ORGANISM_TAXID: 2209;                                                
SOURCE   5 STRAIN: DSM 3647;                                                    
SOURCE   6 GENE: MM_2955;                                                       
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE  10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: PET22B+                                   
KEYWDS    PDC FOLD, SIGNALING PROTEIN                                           
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Z.ZHANG,W.A.HENDRICKSON                                               
REVDAT   4   21-FEB-24 3LIA    1       REMARK SEQADV                            
REVDAT   3   01-NOV-17 3LIA    1       REMARK                                   
REVDAT   2   11-AUG-10 3LIA    1       JRNL                                     
REVDAT   1   05-MAY-10 3LIA    0                                                
JRNL        AUTH   Z.ZHANG,W.A.HENDRICKSON                                      
JRNL        TITL   STRUCTURAL CHARACTERIZATION OF THE PREDOMINANT FAMILY OF     
JRNL        TITL 2 HISTIDINE KINASE SENSOR DOMAINS.                             
JRNL        REF    J.MOL.BIOL.                   V. 400   335 2010              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   20435045                                                     
JRNL        DOI    10.1016/J.JMB.2010.04.049                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.99 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0066                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.99                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 40.46                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 43558                          
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 + TEST SET) : 0.182                           
REMARK   3   R VALUE            (WORKING SET) : 0.178                           
REMARK   3   FREE R VALUE                     : 0.246                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2189                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.99                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.04                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2948                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 95.21                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1870                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 132                          
REMARK   3   BIN FREE R VALUE                    : 0.2660                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4127                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 48                                      
REMARK   3   SOLVENT ATOMS            : 456                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 22.97                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 1.45000                                              
REMARK   3    B22 (A**2) : -1.93000                                             
REMARK   3    B33 (A**2) : 0.63000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -1.77000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.163         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.167         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.103         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.595         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.945                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.910                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4275 ; 0.024 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5806 ; 1.958 ; 1.969       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   527 ; 6.058 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   205 ;36.567 ;25.317       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   695 ;14.939 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    13 ;20.730 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   619 ; 0.222 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3285 ; 0.010 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  2615 ; 1.202 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4232 ; 1.962 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1660 ; 3.310 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1566 ; 4.903 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS. U VALUES: REFINED INDIVIDUALLY                           
REMARK   4                                                                      
REMARK   4 3LIA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-FEB-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000057311.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 02-FEB-07                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X4A                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97157                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 43582                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY                : 4.200                              
REMARK 200  R MERGE                    (I) : 0.06500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.8000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.25100                            
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 1.3.1                                          
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.54                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.49                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 15% PEG3350, 0.21M NH4SO4, 0.1M          
REMARK 280  BISTRIS, PH 5.6, VAPOR DIFFUSION, 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       49.24700            
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, 3                                                 
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3800 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 22810 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -55.0 KCAL/MOL                        
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 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    30                                                      
REMARK 465     GLU A    31                                                      
REMARK 465     ILE A    32                                                      
REMARK 465     GLY A    33                                                      
REMARK 465     THR A    34                                                      
REMARK 465     VAL A    35                                                      
REMARK 465     THR A    36                                                      
REMARK 465     SER A    37                                                      
REMARK 465     GLN A    38                                                      
REMARK 465     GLU A    39                                                      
REMARK 465     GLU A    40                                                      
REMARK 465     ALA A   303                                                      
REMARK 465     GLY A   304                                                      
REMARK 465     VAL A   305                                                      
REMARK 465     LYS A   306                                                      
REMARK 465     ASP A   307                                                      
REMARK 465     LEU A   308                                                      
REMARK 465     ARG A   309                                                      
REMARK 465     ASP A   310                                                      
REMARK 465     ARG A   311                                                      
REMARK 465     LEU A   312                                                      
REMARK 465     LEU A   313                                                      
REMARK 465     GLU A   314                                                      
REMARK 465     HIS A   315                                                      
REMARK 465     HIS A   316                                                      
REMARK 465     HIS A   317                                                      
REMARK 465     HIS A   318                                                      
REMARK 465     HIS A   319                                                      
REMARK 465     HIS A   320                                                      
REMARK 465     MET B    30                                                      
REMARK 465     GLU B    31                                                      
REMARK 465     ILE B    32                                                      
REMARK 465     GLY B    33                                                      
REMARK 465     THR B    34                                                      
REMARK 465     VAL B    35                                                      
REMARK 465     THR B    36                                                      
REMARK 465     SER B    37                                                      
REMARK 465     GLN B    38                                                      
REMARK 465     GLU B    39                                                      
REMARK 465     GLU B    40                                                      
REMARK 465     GLY B   304                                                      
REMARK 465     VAL B   305                                                      
REMARK 465     LYS B   306                                                      
REMARK 465     ASP B   307                                                      
REMARK 465     LEU B   308                                                      
REMARK 465     ARG B   309                                                      
REMARK 465     ASP B   310                                                      
REMARK 465     ARG B   311                                                      
REMARK 465     LEU B   312                                                      
REMARK 465     LEU B   313                                                      
REMARK 465     GLU B   314                                                      
REMARK 465     HIS B   315                                                      
REMARK 465     HIS B   316                                                      
REMARK 465     HIS B   317                                                      
REMARK 465     HIS B   318                                                      
REMARK 465     HIS B   319                                                      
REMARK 465     HIS B   320                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     ARG B  213   CG   CD   NE   CZ   NH1  NH2                        
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   O    HOH A   356     O    HOH B   490              1.94            
REMARK 500   OD1  ASP B   155     O    HOH B   466              1.99            
REMARK 500   CD1  LEU A    42     CB   LEU B    42              2.03            
REMARK 500   OE2  GLU B   191     O    HOH B   524              2.10            
REMARK 500   O    HOH A   400     O    HOH B    11              2.16            
REMARK 500   O    HOH A   324     O    HOH B   425              2.16            
REMARK 500   CD1  ILE B    48     O    HOH B   351              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A 146   CD    GLU A 146   OE2     0.071                       
REMARK 500    VAL B 104   CB    VAL B 104   CG1     0.132                       
REMARK 500    GLU B 146   CD    GLU B 146   OE1     0.090                       
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    ARG A 131   NE  -  CZ  -  NH1 ANGL. DEV. =   4.1 DEGREES          
REMARK 500    ARG A 131   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.5 DEGREES          
REMARK 500    ASP B 127   CB  -  CG  -  OD1 ANGL. DEV. =   5.7 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    ASP A 111        9.83     57.43                                   
REMARK 500    ASP A 114       13.36   -148.62                                   
REMARK 500    ASP A 127     -164.90   -114.32                                   
REMARK 500    SER A 153      -21.14   -142.52                                   
REMARK 500    PHE A 215     -138.98     55.52                                   
REMARK 500    HIS A 232      139.16   -170.29                                   
REMARK 500    PHE A 290     -174.03    -68.17                                   
REMARK 500    ASP B 114        8.78   -150.85                                   
REMARK 500    ASP B 127     -162.67   -112.99                                   
REMARK 500    PHE B 215     -124.37     55.16                                   
REMARK 500    ASP B 248       41.90    -84.33                                   
REMARK 500    PHE B 290     -173.99    -68.51                                   
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 BTB A 321                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 2                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 3                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTB B 321                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 4                   
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3LI8   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3LI9   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3LIB   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3LIC   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3LID   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3LIE   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3LIF   RELATED DB: PDB                                   
DBREF  3LIA A   32   313  UNP    Q8PSW8   Q8PSW8_METMA    32    313             
DBREF  3LIA B   32   313  UNP    Q8PSW8   Q8PSW8_METMA    32    313             
SEQADV 3LIA MET A   30  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA GLU A   31  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA GLU A  314  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS A  315  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS A  316  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS A  317  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS A  318  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS A  319  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS A  320  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA MET B   30  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA GLU B   31  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA GLU B  314  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS B  315  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS B  316  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS B  317  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS B  318  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS B  319  UNP  Q8PSW8              EXPRESSION TAG                 
SEQADV 3LIA HIS B  320  UNP  Q8PSW8              EXPRESSION TAG                 
SEQRES   1 A  291  MET GLU ILE GLY THR VAL THR SER GLN GLU GLU LYS LEU          
SEQRES   2 A  291  ALA TYR GLU LYS SER ILE GLU MET ALA GLY ASN TYR ALA          
SEQRES   3 A  291  ASN GLN PHE ASP ALA GLN MET GLU ALA ASN GLN ALA ILE          
SEQRES   4 A  291  ALA ARG THR LEU ALA CYS THR MET ALA GLU TYR GLY SER          
SEQRES   5 A  291  GLN ASP ARG GLU GLU ALA MET SER ILE ILE LYS ARG ILE          
SEQRES   6 A  291  LEU ASN GLU ASN PRO GLN LEU ILE GLY VAL TYR LEU GLY          
SEQRES   7 A  291  TYR GLU PRO ASP ALA PHE ASP GLY ARG ASP LYS ASN TYR          
SEQRES   8 A  291  ILE ASN ALA PRO GLY HIS ASP SER THR GLY ARG PHE VAL          
SEQRES   9 A  291  PRO TYR CYS ASN LYS ILE ASN GLY PRO VAL ILE ILE GLU          
SEQRES  10 A  291  PRO LEU VAL HIS TYR ASP SER SER ASP TYR TYR GLN LEU          
SEQRES  11 A  291  PRO LYS THR THR GLY LYS ASP THR LEU THR GLU PRO TYR          
SEQRES  12 A  291  PHE TYR GLU GLY ILE PHE MET VAL SER TYR ASP SER PRO          
SEQRES  13 A  291  ILE PHE LYS ASN GLY GLU PHE ALA GLY ILE ALA GLY VAL          
SEQRES  14 A  291  ASP VAL PRO LEU GLU TYR VAL ASP ASP VAL ALA SER SER          
SEQRES  15 A  291  ILE ARG THR PHE ASP THR GLY TYR ALA PHE MET VAL SER          
SEQRES  16 A  291  ASN THR GLY ILE PHE LEU SER HIS PRO THR GLN LYS ASN          
SEQRES  17 A  291  TRP ILE GLY GLU LYS SER LEU SER ASP PHE ASP VAL GLU          
SEQRES  18 A  291  GLU ILE LYS ASN ALA ALA SER ASP ILE ARG GLU GLY ILE          
SEQRES  19 A  291  GLY GLY HIS VAL GLU ILE LYS ASP PRO ILE THR GLY LYS          
SEQRES  20 A  291  THR VAL ILE MET PHE TYR GLU PRO VAL LYS THR GLY ASP          
SEQRES  21 A  291  PHE SER PHE VAL LEU VAL VAL PRO LYS GLU GLU MET LEU          
SEQRES  22 A  291  ALA GLY VAL LYS ASP LEU ARG ASP ARG LEU LEU GLU HIS          
SEQRES  23 A  291  HIS HIS HIS HIS HIS                                          
SEQRES   1 B  291  MET GLU ILE GLY THR VAL THR SER GLN GLU GLU LYS LEU          
SEQRES   2 B  291  ALA TYR GLU LYS SER ILE GLU MET ALA GLY ASN TYR ALA          
SEQRES   3 B  291  ASN GLN PHE ASP ALA GLN MET GLU ALA ASN GLN ALA ILE          
SEQRES   4 B  291  ALA ARG THR LEU ALA CYS THR MET ALA GLU TYR GLY SER          
SEQRES   5 B  291  GLN ASP ARG GLU GLU ALA MET SER ILE ILE LYS ARG ILE          
SEQRES   6 B  291  LEU ASN GLU ASN PRO GLN LEU ILE GLY VAL TYR LEU GLY          
SEQRES   7 B  291  TYR GLU PRO ASP ALA PHE ASP GLY ARG ASP LYS ASN TYR          
SEQRES   8 B  291  ILE ASN ALA PRO GLY HIS ASP SER THR GLY ARG PHE VAL          
SEQRES   9 B  291  PRO TYR CYS ASN LYS ILE ASN GLY PRO VAL ILE ILE GLU          
SEQRES  10 B  291  PRO LEU VAL HIS TYR ASP SER SER ASP TYR TYR GLN LEU          
SEQRES  11 B  291  PRO LYS THR THR GLY LYS ASP THR LEU THR GLU PRO TYR          
SEQRES  12 B  291  PHE TYR GLU GLY ILE PHE MET VAL SER TYR ASP SER PRO          
SEQRES  13 B  291  ILE PHE LYS ASN GLY GLU PHE ALA GLY ILE ALA GLY VAL          
SEQRES  14 B  291  ASP VAL PRO LEU GLU TYR VAL ASP ASP VAL ALA SER SER          
SEQRES  15 B  291  ILE ARG THR PHE ASP THR GLY TYR ALA PHE MET VAL SER          
SEQRES  16 B  291  ASN THR GLY ILE PHE LEU SER HIS PRO THR GLN LYS ASN          
SEQRES  17 B  291  TRP ILE GLY GLU LYS SER LEU SER ASP PHE ASP VAL GLU          
SEQRES  18 B  291  GLU ILE LYS ASN ALA ALA SER ASP ILE ARG GLU GLY ILE          
SEQRES  19 B  291  GLY GLY HIS VAL GLU ILE LYS ASP PRO ILE THR GLY LYS          
SEQRES  20 B  291  THR VAL ILE MET PHE TYR GLU PRO VAL LYS THR GLY ASP          
SEQRES  21 B  291  PHE SER PHE VAL LEU VAL VAL PRO LYS GLU GLU MET LEU          
SEQRES  22 B  291  ALA GLY VAL LYS ASP LEU ARG ASP ARG LEU LEU GLU HIS          
SEQRES  23 B  291  HIS HIS HIS HIS HIS                                          
HET    BTB  A 321      14                                                       
HET    SO4  A   1       5                                                       
HET    SO4  A   2       5                                                       
HET    SO4  A   3       5                                                       
HET    BTB  B 321      14                                                       
HET    SO4  B   4       5                                                       
HETNAM     BTB 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-                 
HETNAM   2 BTB  PROPANE-1,3-DIOL                                                
HETNAM     SO4 SULFATE ION                                                      
HETSYN     BTB BIS-TRIS BUFFER                                                  
FORMUL   3  BTB    2(C8 H19 N O5)                                               
FORMUL   4  SO4    4(O4 S 2-)                                                   
FORMUL   9  HOH   *456(H2 O)                                                    
HELIX    1   1 LYS A   41  TYR A   79  1                                  39    
HELIX    2   2 ASP A   83  ASN A   98  1                                  16    
HELIX    3   3 ARG A  116  TYR A  120  5                                   5    
HELIX    4   4 SER A  154  GLY A  164  1                                  11    
HELIX    5   5 LEU A  202  SER A  210  1                                   9    
HELIX    6   6 GLN A  235  ILE A  239  5                                   5    
HELIX    7   7 SER A  243  PHE A  247  5                                   5    
HELIX    8   8 VAL A  249  GLU A  261  1                                  13    
HELIX    9   9 LYS A  286  ASP A  289  5                                   4    
HELIX   10  10 LYS A  298  LEU A  302  1                                   5    
HELIX   11  11 LYS B   41  TYR B   79  1                                  39    
HELIX   12  12 ASP B   83  ASN B   98  1                                  16    
HELIX   13  13 ARG B  116  ILE B  121  5                                   6    
HELIX   14  14 SER B  154  GLY B  164  1                                  11    
HELIX   15  15 LEU B  202  SER B  210  1                                   9    
HELIX   16  16 GLN B  235  ILE B  239  5                                   5    
HELIX   17  17 SER B  243  PHE B  247  5                                   5    
HELIX   18  18 VAL B  249  GLU B  261  1                                  13    
HELIX   19  19 LYS B  298  ALA B  303  1                                   6    
SHEET    1   A 6 ILE A 144  PRO A 147  0                                        
SHEET    2   A 6 PRO A 134  ASN A 137 -1  N  ASN A 137   O  ILE A 144           
SHEET    3   A 6 GLY A 103  TYR A 108 -1  N  VAL A 104   O  CYS A 136           
SHEET    4   A 6 GLU A 191  PRO A 201 -1  O  ILE A 195   N  GLY A 107           
SHEET    5   A 6 ILE A 177  LYS A 188 -1  N  VAL A 180   O  VAL A 200           
SHEET    6   A 6 THR A 167  LEU A 168 -1  N  THR A 167   O  ASP A 183           
SHEET    1   B 6 ILE A 144  PRO A 147  0                                        
SHEET    2   B 6 PRO A 134  ASN A 137 -1  N  ASN A 137   O  ILE A 144           
SHEET    3   B 6 GLY A 103  TYR A 108 -1  N  VAL A 104   O  CYS A 136           
SHEET    4   B 6 GLU A 191  PRO A 201 -1  O  ILE A 195   N  GLY A 107           
SHEET    5   B 6 ILE A 177  LYS A 188 -1  N  VAL A 180   O  VAL A 200           
SHEET    6   B 6 TYR A 172  TYR A 174 -1  N  TYR A 172   O  MET A 179           
SHEET    1   C 4 TYR A 219  VAL A 223  0                                        
SHEET    2   C 4 PHE A 290  PRO A 297 -1  O  VAL A 293   N  PHE A 221           
SHEET    3   C 4 THR A 277  VAL A 285 -1  N  PHE A 281   O  LEU A 294           
SHEET    4   C 4 GLY A 265  LYS A 270 -1  N  GLY A 265   O  TYR A 282           
SHEET    1   D 6 ILE B 144  PRO B 147  0                                        
SHEET    2   D 6 PRO B 134  ASN B 137 -1  N  TYR B 135   O  GLU B 146           
SHEET    3   D 6 GLY B 103  TYR B 108 -1  N  VAL B 104   O  CYS B 136           
SHEET    4   D 6 GLU B 191  PRO B 201 -1  O  ASP B 199   N  GLY B 103           
SHEET    5   D 6 ILE B 177  LYS B 188 -1  N  ILE B 186   O  ALA B 193           
SHEET    6   D 6 THR B 167  LEU B 168 -1  N  THR B 167   O  ASP B 183           
SHEET    1   E 6 ILE B 144  PRO B 147  0                                        
SHEET    2   E 6 PRO B 134  ASN B 137 -1  N  TYR B 135   O  GLU B 146           
SHEET    3   E 6 GLY B 103  TYR B 108 -1  N  VAL B 104   O  CYS B 136           
SHEET    4   E 6 GLU B 191  PRO B 201 -1  O  ASP B 199   N  GLY B 103           
SHEET    5   E 6 ILE B 177  LYS B 188 -1  N  ILE B 186   O  ALA B 193           
SHEET    6   E 6 TYR B 172  TYR B 174 -1  N  TYR B 172   O  MET B 179           
SHEET    1   F 4 TYR B 219  VAL B 223  0                                        
SHEET    2   F 4 PHE B 290  PRO B 297 -1  O  VAL B 295   N  TYR B 219           
SHEET    3   F 4 THR B 277  VAL B 285 -1  N  ILE B 279   O  VAL B 296           
SHEET    4   F 4 GLY B 265  LYS B 270 -1  N  ILE B 269   O  VAL B 278           
SITE     1 AC1 12 TYR A 105  TYR A 135  LEU A 148  VAL A 149                    
SITE     2 AC1 12 TYR A 172  TYR A 174  MET A 179  SER A 181                    
SITE     3 AC1 12 ASP A 199  HOH A 397  HOH A 403  HOH A 406                    
SITE     1 AC2  3 HIS A 150  SER A 153  HOH A 361                               
SITE     1 AC3  4 ASP A 127  SER A 128  HOH A 396  HOH A 420                    
SITE     1 AC4  2 HIS A 150  HOH A 462                                          
SITE     1 AC5 13 TYR B 105  TYR B 135  LEU B 148  VAL B 149                    
SITE     2 AC5 13 TYR B 156  TYR B 172  TYR B 174  MET B 179                    
SITE     3 AC5 13 SER B 181  ASP B 199  HOH B 409  HOH B 418                    
SITE     4 AC5 13 HOH B 494                                                     
SITE     1 AC6  4 HIS B 150  ASP B 152  SER B 153  HOH B 332                    
CRYST1   46.525   98.494   71.040  90.00  87.51  90.00 P 1 21 1      4          
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      0.021494  0.000000 -0.000935        0.00000                         
SCALE2      0.000000  0.010153  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014090        0.00000