HEADER    OXIDOREDUCTASE                          28-SEP-99   1D3A              
TITLE     CRYSTAL STRUCTURE OF THE WILD TYPE HALOPHILIC MALATE DEHYDROGENASE IN 
TITLE    2 THE APO FORM                                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HALOPHILIC MALATE DEHYDROGENASE;                           
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 EC: 1.1.1.37;                                                        
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HALOARCULA MARISMORTUI;                         
SOURCE   3 ORGANISM_TAXID: 2238;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 EXPRESSION_SYSTEM_PLASMID: PET11D                                    
KEYWDS    ROSSMANN FOLD AND 3 SORTS OF COMPLEX SALT BRIDGES, OXIDOREDUCTASE     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.B.RICHARD,D.MADERN,E.GARCIN,G.ZACCAI                                
REVDAT   7   07-FEB-24 1D3A    1       REMARK LINK                              
REVDAT   6   09-APR-14 1D3A    1       JRNL                                     
REVDAT   5   13-JUL-11 1D3A    1       VERSN                                    
REVDAT   4   24-FEB-09 1D3A    1       VERSN                                    
REVDAT   3   01-APR-03 1D3A    1       JRNL                                     
REVDAT   2   28-JUN-00 1D3A    1       SOURCE                                   
REVDAT   1   20-MAR-00 1D3A    0                                                
JRNL        AUTH   S.B.RICHARD,D.MADERN,E.GARCIN,G.ZACCAI                       
JRNL        TITL   HALOPHILIC ADAPTATION: NOVEL SOLVENT PROTEIN INTERACTIONS    
JRNL        TITL 2 OBSERVED IN THE 2.9 AND 2.6 A RESOLUTION STRUCTURES OF THE   
JRNL        TITL 3 WILD TYPE AND A MUTANT OF MALATE DEHYDROGENASE FROM          
JRNL        TITL 4 HALOARCULA MARISMORTUI.                                      
JRNL        REF    BIOCHEMISTRY                  V.  39   992 2000              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   10653643                                                     
JRNL        DOI    10.1021/BI991001A                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   S.B.RICHARD,F.BONNETE,O.DYM,G.ZACCAI                         
REMARK   1  TITL   PROTOCOL 21: THE MPD-NACL-H2O SYSTEM FOR THE CRYSTALLIZATION 
REMARK   1  TITL 2 OF HALOPHILIC PROTEINS                                       
REMARK   1  REF    ARCHAEA : A LABORATORY                 149 1995              
REMARK   1  REF  2 MANUAL. V.[1]. HALOPHILES                                    
REMARK   1  REFN                                                                
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   O.DYM,M.MEVARECH,J.L.SUSSMAN                                 
REMARK   1  TITL   STRUCTURAL FEATURES STABILIZING HALOPHILIC MALATE            
REMARK   1  TITL 2 DEHYDROGENASE FROM AN ARCHAEBACTERIUM                        
REMARK   1  REF    SCIENCE                       V. 267  1344 1995              
REMARK   1  REFN                   ISSN 0036-8075                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   D.MADERN,C.PFISTER,G.ZACCAI                                  
REMARK   1  TITL   MUTATION AT A SINGLE AMINO ACID ENHANCES THE HALOPHILIC      
REMARK   1  TITL 2 BEHAVIOUR OF MALATE DEHYDROGENASE FROM HALOARCULA            
REMARK   1  TITL 3 MARISMORTUI IN PHYSIOLOGICAL SALTS                           
REMARK   1  REF    EUR.J.BIOCHEM.                V. 230  1088 1995              
REMARK   1  REFN                   ISSN 0014-2956                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   F.CENDRIN,J.CHROBOCZEK,G.ZACCAI,H.EISENBERG,M.MEVARECH       
REMARK   1  TITL   CLONING, SEQUENCING, AND EXPRESSION IN ESCHERICHIA COLI OF   
REMARK   1  TITL 2 THE GENE CODING FOR MALATE DEHYDROGENASE OF THE EXTREMELY    
REMARK   1  TITL 3 HALOPHILIC ARCHAEBACTERIUM HALOARCULA MARISMORTUI            
REMARK   1  REF    BIOCHEMISTRY                  V.  32  4308 1993              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.94 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.4                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.94                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 2600643.310                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 20523                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.202                           
REMARK   3   FREE R VALUE                     : 0.244                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1003                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.016                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.94                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.04                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.50                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 3222                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3110                       
REMARK   3   BIN FREE R VALUE                    : 0.3830                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.00                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 169                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.036                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4602                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 3                                       
REMARK   3   SOLVENT ATOMS            : 32                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 82.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 32.20                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -3.17000                                             
REMARK   3    B22 (A**2) : 17.61000                                             
REMARK   3    B33 (A**2) : -14.44000                                            
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.35                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.49                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.44                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.67                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.008                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.50                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.900                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 5.740 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 8.180 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 8.030 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 10.720; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : 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  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : PARA.INP                                       
REMARK   3  PARAMETER FILE  3  : CIS_PEPTIDE_DIM.PARAM                          
REMARK   3  PARAMETER FILE  4  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : NULL                                           
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: USING MAXIMUM LIKELIHOOD                  
REMARK   3  TARGET USING AMPLITUDES                                             
REMARK   4                                                                      
REMARK   4 1D3A COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-SEP-99.                  
REMARK 100 THE DEPOSITION ID IS D_1000009750.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 22-OCT-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 284.0                              
REMARK 200  PH                             : 7.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 3                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : LURE                               
REMARK 200  BEAMLINE                       : DW32                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.975                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 99423                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.940                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.2                               
REMARK 200  DATA REDUNDANCY                : 4.900                              
REMARK 200  R MERGE                    (I) : 0.10000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 3.2000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.94                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 94.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33200                            
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: NULL                         
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 66.24                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.64                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: MPD-NACL-H2O SYSTEM, PH 7.6, VAPOR       
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -X,Y,-Z+1/2                                             
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z                                           
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-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        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       62.72500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       62.72500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  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       57.89000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       65.66500            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       57.89000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       65.66500            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       62.72500            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       57.89000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       65.66500            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       62.72500            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       57.89000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       65.66500            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 12500 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 43510 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -64.0 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 350   BIOMT1   2 -1.000000  0.000000  0.000000      115.78000            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      188.17500            
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   CG   ARG B   102     CD1  LEU B   112              2.03            
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    ARG A  43       -7.56    -58.37                                   
REMARK 500    GLU A 129       32.80    -93.99                                   
REMARK 500    HIS A 130      -12.04   -157.61                                   
REMARK 500    SER A 139      129.77    -28.43                                   
REMARK 500    VAL A 160       78.86   -111.48                                   
REMARK 500    GLU A 241      -61.14   -103.74                                   
REMARK 500    GLU A 247      -70.90   -140.53                                   
REMARK 500    ALA A 251      -70.04    -41.99                                   
REMARK 500    GLU A 276       55.29   -144.59                                   
REMARK 500    GLU A 301      149.41    174.03                                   
REMARK 500    GLN A 325      -34.71    -39.66                                   
REMARK 500    ILE A 329       32.60    -87.79                                   
REMARK 500    TYR B  85      -21.88    -39.91                                   
REMARK 500    THR B  88       30.64    -76.78                                   
REMARK 500    HIS B 130      -19.36   -146.58                                   
REMARK 500    ALA B 152        8.69    -64.88                                   
REMARK 500    VAL B 160       68.87   -110.44                                   
REMARK 500    GLU B 241      -64.90   -109.29                                   
REMARK 500    GLU B 247      -71.06   -129.09                                   
REMARK 500    ILE B 261      -70.03    -69.90                                   
REMARK 500    GLU B 278      131.29    -31.84                                   
REMARK 500    ALA B 286      108.18   -165.72                                   
REMARK 500    GLU B 301      149.51    169.62                                   
REMARK 500    GLU B 320      -73.56    -67.78                                   
REMARK 500    LYS B 321      -42.19    -29.21                                   
REMARK 500    ILE B 329       31.57    -86.80                                   
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                              NA A 332  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 247   OE2                                                    
REMARK 620 2 GLU B 247   OE2 119.3                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 331                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 331                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 332                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2HLP   RELATED DB: PDB                                   
REMARK 900 2HLP IS THE CRYSTAL STRUCTURE OF THE E267R MUTANT OF THE HALOPHILIC  
REMARK 900 MALATE DEHYDROGENASE IN THE APO FORM                                 
DBREF  1D3A A   22   330  UNP    Q07841   MDH_HALMA        2    304             
DBREF  1D3A B   22   330  UNP    Q07841   MDH_HALMA        2    304             
SEQRES   1 A  303  THR LYS VAL SER VAL VAL GLY ALA ALA GLY THR VAL GLY          
SEQRES   2 A  303  ALA ALA ALA GLY TYR ASN ILE ALA LEU ARG ASP ILE ALA          
SEQRES   3 A  303  ASP GLU VAL VAL PHE VAL ASP ILE PRO ASP LYS GLU ASP          
SEQRES   4 A  303  ASP THR VAL GLY GLN ALA ALA ASP THR ASN HIS GLY ILE          
SEQRES   5 A  303  ALA TYR ASP SER ASN THR ARG VAL ARG GLN GLY GLY TYR          
SEQRES   6 A  303  GLU ASP THR ALA GLY SER ASP VAL VAL VAL ILE THR ALA          
SEQRES   7 A  303  GLY ILE PRO ARG GLN PRO GLY GLN THR ARG ILE ASP LEU          
SEQRES   8 A  303  ALA GLY ASP ASN ALA PRO ILE MET GLU ASP ILE GLN SER          
SEQRES   9 A  303  SER LEU ASP GLU HIS ASN ASP ASP TYR ILE SER LEU THR          
SEQRES  10 A  303  THR SER ASN PRO VAL ASP LEU LEU ASN ARG HIS LEU TYR          
SEQRES  11 A  303  GLU ALA GLY ASP ARG SER ARG GLU GLN VAL ILE GLY PHE          
SEQRES  12 A  303  GLY GLY ARG LEU ASP SER ALA ARG PHE ARG TYR VAL LEU          
SEQRES  13 A  303  SER GLU GLU PHE ASP ALA PRO VAL GLN ASN VAL GLU GLY          
SEQRES  14 A  303  THR ILE LEU GLY GLU HIS GLY ASP ALA GLN VAL PRO VAL          
SEQRES  15 A  303  PHE SER LYS VAL ARG VAL ASP GLY THR ASP PRO GLU PHE          
SEQRES  16 A  303  SER GLY ASP GLU LYS GLU GLN LEU LEU GLY ASP LEU GLN          
SEQRES  17 A  303  GLU SER ALA MET ASP VAL ILE GLU ARG LYS GLY ALA THR          
SEQRES  18 A  303  GLU TRP GLY PRO ALA ARG GLY VAL ALA HIS MET VAL GLU          
SEQRES  19 A  303  ALA ILE LEU HIS ASP THR GLY GLU VAL LEU PRO ALA SER          
SEQRES  20 A  303  VAL LYS LEU GLU GLY GLU PHE GLY HIS GLU ASP THR ALA          
SEQRES  21 A  303  PHE GLY VAL PRO VAL ARG LEU GLY SER ASN GLY VAL GLU          
SEQRES  22 A  303  GLU ILE VAL GLU TRP ASP LEU ASP ASP TYR GLU GLN ASP          
SEQRES  23 A  303  LEU MET ALA ASP ALA ALA GLU LYS LEU SER ASP GLN TYR          
SEQRES  24 A  303  ASP LYS ILE SER                                              
SEQRES   1 B  303  THR LYS VAL SER VAL VAL GLY ALA ALA GLY THR VAL GLY          
SEQRES   2 B  303  ALA ALA ALA GLY TYR ASN ILE ALA LEU ARG ASP ILE ALA          
SEQRES   3 B  303  ASP GLU VAL VAL PHE VAL ASP ILE PRO ASP LYS GLU ASP          
SEQRES   4 B  303  ASP THR VAL GLY GLN ALA ALA ASP THR ASN HIS GLY ILE          
SEQRES   5 B  303  ALA TYR ASP SER ASN THR ARG VAL ARG GLN GLY GLY TYR          
SEQRES   6 B  303  GLU ASP THR ALA GLY SER ASP VAL VAL VAL ILE THR ALA          
SEQRES   7 B  303  GLY ILE PRO ARG GLN PRO GLY GLN THR ARG ILE ASP LEU          
SEQRES   8 B  303  ALA GLY ASP ASN ALA PRO ILE MET GLU ASP ILE GLN SER          
SEQRES   9 B  303  SER LEU ASP GLU HIS ASN ASP ASP TYR ILE SER LEU THR          
SEQRES  10 B  303  THR SER ASN PRO VAL ASP LEU LEU ASN ARG HIS LEU TYR          
SEQRES  11 B  303  GLU ALA GLY ASP ARG SER ARG GLU GLN VAL ILE GLY PHE          
SEQRES  12 B  303  GLY GLY ARG LEU ASP SER ALA ARG PHE ARG TYR VAL LEU          
SEQRES  13 B  303  SER GLU GLU PHE ASP ALA PRO VAL GLN ASN VAL GLU GLY          
SEQRES  14 B  303  THR ILE LEU GLY GLU HIS GLY ASP ALA GLN VAL PRO VAL          
SEQRES  15 B  303  PHE SER LYS VAL ARG VAL ASP GLY THR ASP PRO GLU PHE          
SEQRES  16 B  303  SER GLY ASP GLU LYS GLU GLN LEU LEU GLY ASP LEU GLN          
SEQRES  17 B  303  GLU SER ALA MET ASP VAL ILE GLU ARG LYS GLY ALA THR          
SEQRES  18 B  303  GLU TRP GLY PRO ALA ARG GLY VAL ALA HIS MET VAL GLU          
SEQRES  19 B  303  ALA ILE LEU HIS ASP THR GLY GLU VAL LEU PRO ALA SER          
SEQRES  20 B  303  VAL LYS LEU GLU GLY GLU PHE GLY HIS GLU ASP THR ALA          
SEQRES  21 B  303  PHE GLY VAL PRO VAL ARG LEU GLY SER ASN GLY VAL GLU          
SEQRES  22 B  303  GLU ILE VAL GLU TRP ASP LEU ASP ASP TYR GLU GLN ASP          
SEQRES  23 B  303  LEU MET ALA ASP ALA ALA GLU LYS LEU SER ASP GLN TYR          
SEQRES  24 B  303  ASP LYS ILE SER                                              
HET     CL  A 331       1                                                       
HET     NA  A 332       1                                                       
HET     CL  B 331       1                                                       
HETNAM      CL CHLORIDE ION                                                     
HETNAM      NA SODIUM ION                                                       
FORMUL   3   CL    2(CL 1-)                                                     
FORMUL   4   NA    NA 1+                                                        
FORMUL   6  HOH   *32(H2 O)                                                     
HELIX    1   1 GLY A   30  ARG A   43  1                                  14    
HELIX    2   3 LYS A   55  ALA A   71  1                                  17    
HELIX    3   4 GLY A   84  ALA A   89  5                                   6    
HELIX    4   5 THR A  108  GLU A  129  1                                  22    
HELIX    5   6 PRO A  141  ALA A  152  1                                  12    
HELIX    6   7 SER A  156  GLU A  158  5                                   3    
HELIX    7   8 GLY A  164  PHE A  180  1                                  17    
HELIX    8   9 PHE A  203  VAL A  206  5                                   4    
HELIX    9  10 SER A  221  GLU A  241  1                                  21    
HELIX   10  11 GLU A  247  HIS A  263  1                                  17    
HELIX   11  12 GLU A  278  GLY A  280  5                                   3    
HELIX   12  13 ASP A  308  ILE A  329  1                                  22    
HELIX   13  14 GLY B   30  ARG B   43  1                                  14    
HELIX   14  16 LYS B   55  ALA B   71  1                                  17    
HELIX   15  17 THR B  108  GLU B  129  1                                  22    
HELIX   16  18 PRO B  141  ALA B  152  1                                  12    
HELIX   17  19 SER B  156  GLU B  158  5                                   3    
HELIX   18  20 GLY B  164  ASP B  181  1                                  18    
HELIX   19  21 PRO B  183  GLN B  185  5                                   3    
HELIX   20  22 PHE B  203  VAL B  206  5                                   4    
HELIX   21  23 SER B  221  GLU B  241  1                                  21    
HELIX   22  24 GLU B  247  HIS B  263  1                                  17    
HELIX   23  25 GLU B  278  GLY B  280  5                                   3    
HELIX   24  26 ASP B  308  ILE B  329  1                                  22    
SHEET    1   A 6 ARG A  77  GLN A  80  0                                        
SHEET    2   A 6 GLU A  48  VAL A  52  1  N  VAL A  49   O  ARG A  77           
SHEET    3   A 6 LYS A  23  VAL A  27  1  O  VAL A  24   N  VAL A  50           
SHEET    4   A 6 VAL A  93  ILE A  96  1  O  VAL A  93   N  SER A  25           
SHEET    5   A 6 ILE A 134  THR A 137  1  O  ILE A 134   N  VAL A  94           
SHEET    6   A 6 VAL A 160  GLY A 162  1  O  ILE A 161   N  THR A 137           
SHEET    1   B 2 VAL A 187  GLU A 188  0                                        
SHEET    2   B 2 ARG A 207  VAL A 208 -1  O  ARG A 207   N  GLU A 188           
SHEET    1   C 2 ILE A 191  GLY A 193  0                                        
SHEET    2   C 2 GLN A 199  PRO A 201 -1  O  VAL A 200   N  LEU A 192           
SHEET    1   D 3 VAL A 268  GLU A 276  0                                        
SHEET    2   D 3 GLU A 283  GLY A 294 -1  N  ASP A 284   O  LEU A 275           
SHEET    3   D 3 GLY A 297  ILE A 302 -1  O  GLY A 297   N  GLY A 294           
SHEET    1   E 6 ARG B  77  GLN B  80  0                                        
SHEET    2   E 6 GLU B  48  VAL B  52  1  N  VAL B  49   O  ARG B  77           
SHEET    3   E 6 LYS B  23  VAL B  27  1  N  VAL B  24   O  GLU B  48           
SHEET    4   E 6 VAL B  93  ILE B  96  1  O  VAL B  93   N  SER B  25           
SHEET    5   E 6 ILE B 134  THR B 137  1  O  ILE B 134   N  VAL B  94           
SHEET    6   E 6 VAL B 160  GLY B 162  1  O  ILE B 161   N  THR B 137           
SHEET    1   F 2 VAL B 187  GLU B 188  0                                        
SHEET    2   F 2 ARG B 207  VAL B 208 -1  O  ARG B 207   N  GLU B 188           
SHEET    1   G 2 ILE B 191  GLY B 193  0                                        
SHEET    2   G 2 GLN B 199  PRO B 201 -1  O  VAL B 200   N  LEU B 192           
SHEET    1   H 3 VAL B 268  SER B 272  0                                        
SHEET    2   H 3 GLY B 288  GLY B 294 -1  N  VAL B 289   O  ALA B 271           
SHEET    3   H 3 GLY B 297  ILE B 302 -1  O  GLY B 297   N  GLY B 294           
SHEET    1   I 2 LEU B 275  GLY B 277  0                                        
SHEET    2   I 2 HIS B 282  THR B 285 -1  O  HIS B 282   N  GLY B 277           
LINK         OE2 GLU A 247                NA    NA A 332     1555   1555  2.87  
LINK        NA    NA A 332                 OE2 GLU B 247     1555   1555  2.84  
CISPEP   1 ASN A  140    PRO A  141          0        -0.06                     
CISPEP   2 ASN B  140    PRO B  141          0        -0.06                     
SITE     1 AC1  4 LYS A 205  ASP A 306  THR B 210B ASP B 211                    
SITE     1 AC2  4 THR A 210B ASP A 211  LYS B 205  ASP B 306                    
SITE     1 AC3  2 GLU A 247  GLU B 247                                          
CRYST1  115.780  131.330  125.450  90.00  90.00  90.00 C 2 2 21     16          
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      0.008637  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007614  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007971        0.00000