HEADER    GTP-BINDING                             15-DEC-96   1JAH              
TITLE     H-RAS P21 PROTEIN MUTANT G12P, COMPLEXED WITH GUANOSINE-5'-[BETA,     
TITLE    2 GAMMA-METHYLENE] TRIPHOSPHATE AND MAGNESIUM                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: C-HA-RAS;                                                  
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: CATALYTIC DOMAIN, RESIDUES 1 - 166;                        
COMPND   5 SYNONYM: G-DOMAIN;                                                   
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: H-RAS-1;                                                       
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: CK 600 K;                                  
SOURCE   9 EXPRESSION_SYSTEM_VECTOR: PTAC RAS;                                  
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PTAC                                      
KEYWDS    GTP HYDROLYSIS, SIGNAL TRANSDUCTION, CANCER, G-DOMAIN, GTP-BINDING    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.SCHWEINS,K.SCHEFFZEK,R.ASSHEUER,A.WITTINGHOFER                      
REVDAT   5   03-APR-24 1JAH    1       REMARK                                   
REVDAT   4   07-FEB-24 1JAH    1       REMARK                                   
REVDAT   3   03-NOV-21 1JAH    1       REMARK SEQADV LINK                       
REVDAT   2   24-FEB-09 1JAH    1       VERSN                                    
REVDAT   1   23-JUL-97 1JAH    0                                                
JRNL        AUTH   T.SCHWEINS,K.SCHEFFZEK,R.ASSHEUER,A.WITTINGHOFER             
JRNL        TITL   THE ROLE OF THE METAL ION IN THE P21RAS CATALYSED            
JRNL        TITL 2 GTP-HYDROLYSIS: MN2+ VERSUS MG2+.                            
JRNL        REF    J.MOL.BIOL.                   V. 266   847 1997              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   9102473                                                      
JRNL        DOI    10.1006/JMBI.1996.0814                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   E.F.PAI,U.KRENGEL,G.A.PETSKO,R.S.GOODY,W.KABSCH,             
REMARK   1  AUTH 2 A.WITTINGHOFER                                               
REMARK   1  TITL   REFINED CRYSTAL STRUCTURE OF THE TRIPHOSPHATE CONFORMATION   
REMARK   1  TITL 2 OF H-RAS P21 AT 1.35 A RESOLUTION: IMPLICATIONS FOR THE      
REMARK   1  TITL 3 MECHANISM OF GTP HYDROLYSIS                                  
REMARK   1  REF    EMBO J.                       V.   9  2351 1990              
REMARK   1  REFN                   ISSN 0261-4189                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   P.H.SEEBURG,W.W.COLBY,D.J.CAPON,D.V.GOEDDEL,A.D.LEVINSON     
REMARK   1  TITL   BIOLOGICAL PROPERTIES OF HUMAN C-HA-RAS1 GENES MUTATED AT    
REMARK   1  TITL 2 CODON 12                                                     
REMARK   1  REF    NATURE                        V. 312    71 1984              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 13578                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.220                           
REMARK   3   FREE R VALUE                     : 0.290                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1325                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 33                                      
REMARK   3   SOLVENT ATOMS            : 25                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 18.30                          
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  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.22                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.25                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 8.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.100                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1JAH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000174298.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-DEC-91                          
REMARK 200  TEMPERATURE           (KELVIN) : 277                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : ELLIOTT                            
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : FRANKS DOUBLE MIRRORS              
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : SIEMENS                            
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS (W.KABSCH)                     
REMARK 200  DATA SCALING SOFTWARE          : XSCALE (KABSCH)                    
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14178                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.3                               
REMARK 200  DATA REDUNDANCY                : 4.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.07000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 27.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.00                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 93.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.30                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.30000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 4.100                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: X-PLOR 3.1                                            
REMARK 200 STARTING MODEL: C-H-RAS:GPPNP:MG2+                                   
REMARK 200                                                                      
REMARK 200 REMARK: CRYSTALS ARE ISOMORPHOUS TO C-H-RAS:GPPNP:MG2+, NO           
REMARK 200  ROTATION/TRANSLATION CALCULATIONS REQUIRED.                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 30.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.5                                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-Z+2/3                                          
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      107.09333            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       53.54667            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  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        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       53.54667            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000      107.09333            
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: DIMERIC                           
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   BIOMT1   2 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.866025  0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
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  33       76.11   -161.30                                   
REMARK 500    ILE A  36      -60.03    -97.85                                   
REMARK 500    LYS A 117       32.88     72.59                                   
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                              MG A 168  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A  17   OG                                                     
REMARK 620 2 THR A  35   OG1  78.1                                              
REMARK 620 3 GCP A 167   O2G 164.5  91.3                                        
REMARK 620 4 GCP A 167   O2B  96.7 170.4  92.1                                  
REMARK 620 5 HOH A 170   O    83.2  84.0  84.6  87.4                            
REMARK 620 6 HOH A 176   O    84.8  90.3 106.7  97.3 167.5                      
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 MG A 168                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GCP A 167                 
DBREF  1JAH A    1   166  UNP    P01112   RASH_HUMAN       1    166             
SEQADV 1JAH PRO A   12  UNP  P01112    GLY    12 ENGINEERED MUTATION            
SEQADV 1JAH GLY A  122  UNP  P01112    ALA   122 CONFLICT                       
SEQRES   1 A  166  MET THR GLU TYR LYS LEU VAL VAL VAL GLY ALA PRO GLY          
SEQRES   2 A  166  VAL GLY LYS SER ALA LEU THR ILE GLN LEU ILE GLN ASN          
SEQRES   3 A  166  HIS PHE VAL ASP GLU TYR ASP PRO THR ILE GLU ASP SER          
SEQRES   4 A  166  TYR ARG LYS GLN VAL VAL ILE ASP GLY GLU THR CYS LEU          
SEQRES   5 A  166  LEU ASP ILE LEU ASP THR ALA GLY GLN GLU GLU TYR SER          
SEQRES   6 A  166  ALA MET ARG ASP GLN TYR MET ARG THR GLY GLU GLY PHE          
SEQRES   7 A  166  LEU CYS VAL PHE ALA ILE ASN ASN THR LYS SER PHE GLU          
SEQRES   8 A  166  ASP ILE HIS GLN TYR ARG GLU GLN ILE LYS ARG VAL LYS          
SEQRES   9 A  166  ASP SER ASP ASP VAL PRO MET VAL LEU VAL GLY ASN LYS          
SEQRES  10 A  166  CYS ASP LEU ALA GLY ARG THR VAL GLU SER ARG GLN ALA          
SEQRES  11 A  166  GLN ASP LEU ALA ARG SER TYR GLY ILE PRO TYR ILE GLU          
SEQRES  12 A  166  THR SER ALA LYS THR ARG GLN GLY VAL GLU ASP ALA PHE          
SEQRES  13 A  166  TYR THR LEU VAL ARG GLU ILE ARG GLN HIS                      
HET     MG  A 168       1                                                       
HET    GCP  A 167      32                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER                     
FORMUL   2   MG    MG 2+                                                        
FORMUL   3  GCP    C11 H18 N5 O13 P3                                            
FORMUL   4  HOH   *25(H2 O)                                                     
HELIX    1   1 LYS A   16  GLN A   25  1                                  10    
HELIX    2   2 GLU A   62  THR A   74  5                                  13    
HELIX    3   3 THR A   87  LYS A  104  1                                  18    
HELIX    4   4 SER A  127  TYR A  137  1                                  11    
HELIX    5   5 VAL A  152  ARG A  164  1                                  13    
SHEET    1   A 6 PRO A 140  GLU A 143  0                                        
SHEET    2   A 6 PRO A 110  ASN A 116  1  N  LEU A 113   O  PRO A 140           
SHEET    3   A 6 GLY A  77  ALA A  83  1  N  PHE A  78   O  PRO A 110           
SHEET    4   A 6 THR A   2  GLY A  10  1  N  VAL A   7   O  GLY A  77           
SHEET    5   A 6 GLU A  49  THR A  58  1  N  LEU A  52   O  THR A   2           
SHEET    6   A 6 GLU A  37  ILE A  46 -1  N  ILE A  46   O  GLU A  49           
LINK         OG  SER A  17                MG    MG A 168     1555   1555  2.34  
LINK         OG1 THR A  35                MG    MG A 168     1555   1555  2.22  
LINK         O2G GCP A 167                MG    MG A 168     1555   1555  2.20  
LINK         O2B GCP A 167                MG    MG A 168     1555   1555  2.18  
LINK        MG    MG A 168                 O   HOH A 170     1555   1555  2.32  
LINK        MG    MG A 168                 O   HOH A 176     1555   1555  2.31  
SITE     1 AC1  5 SER A  17  THR A  35  GCP A 167  HOH A 170                    
SITE     2 AC1  5 HOH A 176                                                     
SITE     1 AC2 24 PRO A  12  GLY A  13  VAL A  14  GLY A  15                    
SITE     2 AC2 24 LYS A  16  SER A  17  ALA A  18  PHE A  28                    
SITE     3 AC2 24 VAL A  29  ASP A  30  TYR A  32  PRO A  34                    
SITE     4 AC2 24 THR A  35  ASN A 116  LYS A 117  ASP A 119                    
SITE     5 AC2 24 SER A 145  ALA A 146  LYS A 147   MG A 168                    
SITE     6 AC2 24 HOH A 169  HOH A 170  HOH A 175  HOH A 176                    
CRYST1   40.100   40.100  160.640  90.00  90.00 120.00 P 32 2 1      6          
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      0.024938  0.014398  0.000000        0.00000                         
SCALE2      0.000000  0.028796  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006225        0.00000