HEADER    OXIDOREDUCTASE                          19-DEC-00   1HQT              
TITLE     THE CRYSTAL STRUCTURE OF AN ALDEHYDE REDUCTASE Y50F MUTANT-NADP       
TITLE    2 COMPLEX AND ITS IMPLICATIONS FOR SUBSTRATE BINDING                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALDEHYDE REDUCTASE;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: ALCOHOL DEHYDROGENASE [NADP+];                              
COMPND   5 EC: 1.1.1.2;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SUS SCROFA;                                     
SOURCE   3 ORGANISM_COMMON: PIG;                                                
SOURCE   4 ORGANISM_TAXID: 9823;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET16B                                    
KEYWDS    ALPHA/BETA BARREL TIM BARREL HOLO ENZYME, OXIDOREDUCTASE              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Q.YE,D.HYNDMAN,N.C.GREEN,L.LI,B.KORITHOSKI,Z.JIA,T.G.FLYNN            
REVDAT   6   03-APR-24 1HQT    1       REMARK                                   
REVDAT   5   07-FEB-24 1HQT    1       REMARK                                   
REVDAT   4   27-OCT-21 1HQT    1       REMARK SEQADV                            
REVDAT   3   04-OCT-17 1HQT    1       REMARK                                   
REVDAT   2   24-FEB-09 1HQT    1       VERSN                                    
REVDAT   1   16-MAY-01 1HQT    0                                                
JRNL        AUTH   Q.YE,D.HYNDMAN,N.C.GREEN,L.LI,Z.JIA,T.G.FLYNN                
JRNL        TITL   THE CRYSTAL STRUCTURE OF AN ALDEHYDE REDUCTASE Y50F          
JRNL        TITL 2 MUTANT-NADP COMPLEX AND ITS IMPLICATIONS FOR SUBSTRATE       
JRNL        TITL 3 BINDING                                                      
JRNL        REF    CHEM.BIOL.INTERACT.           V. 132   651 2001              
JRNL        REFN                   ISSN 0009-2797                               
JRNL        PMID   11306083                                                     
JRNL        DOI    10.1016/S0009-2797(00)00256-8                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
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) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 6.00                           
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)   (%) : 86.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 17254                          
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) : 0.212                           
REMARK   3   FREE R VALUE                     : 0.296                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1492                            
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) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 6.00                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 86.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2120                       
REMARK   3   BIN FREE R VALUE                    : 0.2960                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 1492                         
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            : 2571                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 48                                      
REMARK   3   SOLVENT ATOMS            : 267                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
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) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
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) : 0.006                           
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ANISOTROPIC                               
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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1HQT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-DEC-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000012530.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JAN-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : NULL                               
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          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MAR                                
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17569                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 6.000                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 91.3                               
REMARK 200  DATA REDUNDANCY                : 2.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.07200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.0400                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.28                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 92.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.20                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.26600                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.430                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: EPMR                                                  
REMARK 200 STARTING MODEL: OSSAMA EI-KABBANI, PERSONAL COMMUNICATION.           
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.80                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.36                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000, NACL, MES, EVAPORATION,        
REMARK 280  TEMPERATURE 277.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   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       26.64500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       46.36000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       35.06000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       46.36000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       26.64500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       35.06000            
REMARK 290   SMTRY3   4  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: 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 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     HIS A     0                                                      
REMARK 465     MET A     1                                                      
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   571     O    HOH A   586              0.28            
REMARK 500   O    HOH A   519     O    HOH A   566              0.33            
REMARK 500   O    HOH A   533     O    HOH A   649              0.38            
REMARK 500   O    HOH A   506     O    HOH A   538              0.49            
REMARK 500   O    HOH A   610     O    HOH A   662              0.58            
REMARK 500   O    HOH A   501     O    HOH A   569              0.67            
REMARK 500   N    GLY A    67     O    HOH A   664              0.99            
REMARK 500   C    PRO A    66     O    HOH A   664              1.19            
REMARK 500   CA   PRO A    66     O    HOH A   664              1.79            
REMARK 500   CB   ALA A     3     O    HOH A   484              1.82            
REMARK 500   O    ILE A   261     O    HOH A   644              1.83            
REMARK 500   O    ALA A   219     O    HOH A   647              1.91            
REMARK 500   CG   LEU A   173     O    HOH A   635              2.01            
REMARK 500   N    PRO A    66     O    HOH A   664              2.01            
REMARK 500   CD1  LEU A   173     O    HOH A   635              2.07            
REMARK 500   C    ILE A   261     O    HOH A   644              2.10            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   516     O    HOH A   526     3646     0.15            
REMARK 500   O    HOH A   513     O    HOH A   564     4456     0.16            
REMARK 500   O    HOH A   492     O    HOH A   574     4457     0.29            
REMARK 500   O    HOH A   509     O    HOH A   550     3656     0.42            
REMARK 500   O    HOH A   588     O    HOH A   629     2665     0.49            
REMARK 500   O    HOH A   558     O    HOH A   587     4557     0.78            
REMARK 500   O    HOH A   534     O    HOH A   578     3756     0.81            
REMARK 500   O    HOH A   483     O    HOH A   636     3746     0.84            
REMARK 500   O    HOH A   607     O    HOH A   632     2665     0.89            
REMARK 500   O    HOH A   631     O    HOH A   657     2664     0.94            
REMARK 500   O    HOH A   500     O    HOH A   529     2665     1.02            
REMARK 500   O    HOH A   500     O    HOH A   528     2665     1.74            
REMARK 500   O    HOH A   442     O    HOH A   587     4557     1.81            
REMARK 500   O    HOH A   588     O    HOH A   628     2665     2.06            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    PRO A 301   C   -  N   -  CA  ANGL. DEV. =  10.3 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    ALA A   3       91.92   -165.58                                   
REMARK 500    LYS A  23       -2.65     75.11                                   
REMARK 500    GLU A  25      167.54    -49.48                                   
REMARK 500    GLN A  28      -42.98   -145.47                                   
REMARK 500    ASN A  52        5.00   -161.23                                   
REMARK 500    PRO A  66       10.79    -58.69                                   
REMARK 500    LYS A  68     -171.51    -61.59                                   
REMARK 500    ALA A 129      -92.22     46.96                                   
REMARK 500    TYR A 135     -171.09    -61.98                                   
REMARK 500    SER A 216      -37.93     62.70                                   
REMARK 500    ASP A 217       15.44   -176.74                                   
REMARK 500    ARG A 218     -162.59     39.63                                   
REMARK 500    TRP A 220      105.44   -172.31                                   
REMARK 500    ASP A 222       47.61   -169.14                                   
REMARK 500    PRO A 223     -101.61    -62.22                                   
REMARK 500    ASN A 224      -19.96    169.37                                   
REMARK 500    GLU A 225      156.86    158.55                                   
REMARK 500    GLU A 230      -14.80    102.25                                   
REMARK 500    PRO A 262      131.72    -37.22                                   
REMARK 500    SER A 264      141.49   -171.45                                   
REMARK 500    LYS A 294       37.52   -149.68                                   
REMARK 500    ASN A 295       48.40     30.63                                   
REMARK 500    PRO A 301     -177.84    -37.21                                   
REMARK 500    MET A 302      -59.13   -127.31                                   
REMARK 500    LEU A 303       62.65     15.85                                   
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 NAP A 350                 
DBREF  1HQT A    1   325  UNP    P50578   AK1A1_PIG        1    325             
SEQADV 1HQT HIS A    0  UNP  P50578              SEE REMARK 999                 
SEQADV 1HQT PHE A   50  UNP  P50578    TYR    50 ENGINEERED MUTATION            
SEQADV 1HQT GLN A   61  UNP  P50578    THR    61 SEE REMARK 999                 
SEQRES   1 A  326  HIS MET ALA ALA SER CYS VAL LEU LEU HIS THR GLY GLN          
SEQRES   2 A  326  LYS MET PRO LEU ILE GLY LEU GLY THR TRP LYS SER GLU          
SEQRES   3 A  326  PRO GLY GLN VAL LYS ALA ALA ILE LYS TYR ALA LEU THR          
SEQRES   4 A  326  VAL GLY TYR ARG HIS ILE ASP CYS ALA ALA ILE PHE GLY          
SEQRES   5 A  326  ASN GLU LEU GLU ILE GLY GLU ALA LEU GLN GLU THR VAL          
SEQRES   6 A  326  GLY PRO GLY LYS ALA VAL PRO ARG GLU GLU LEU PHE VAL          
SEQRES   7 A  326  THR SER LYS LEU TRP ASN THR LYS HIS HIS PRO GLU ASP          
SEQRES   8 A  326  VAL GLU PRO ALA LEU ARG LYS THR LEU ALA ASP LEU GLN          
SEQRES   9 A  326  LEU GLU TYR LEU ASP LEU TYR LEU MET HIS TRP PRO TYR          
SEQRES  10 A  326  ALA PHE GLU ARG GLY ASP ASN PRO PHE PRO LYS ASN ALA          
SEQRES  11 A  326  ASP GLY THR ILE ARG TYR ASP ALA THR HIS TYR LYS ASP          
SEQRES  12 A  326  THR TRP LYS ALA LEU GLU ALA LEU VAL ALA LYS GLY LEU          
SEQRES  13 A  326  VAL ARG ALA LEU GLY LEU SER ASN PHE SER SER ARG GLN          
SEQRES  14 A  326  ILE ASP ASP VAL LEU SER VAL ALA SER VAL ARG PRO ALA          
SEQRES  15 A  326  VAL LEU GLN VAL GLU CYS HIS PRO TYR LEU ALA GLN ASN          
SEQRES  16 A  326  GLU LEU ILE ALA HIS CYS GLN ALA ARG GLY LEU GLU VAL          
SEQRES  17 A  326  THR ALA TYR SER PRO LEU GLY SER SER ASP ARG ALA TRP          
SEQRES  18 A  326  ARG ASP PRO ASN GLU PRO VAL LEU LEU GLU GLU PRO VAL          
SEQRES  19 A  326  VAL GLN ALA LEU ALA GLU LYS TYR ASN ARG SER PRO ALA          
SEQRES  20 A  326  GLN ILE LEU LEU ARG TRP GLN VAL GLN ARG LYS VAL ILE          
SEQRES  21 A  326  CYS ILE PRO LYS SER VAL THR PRO SER ARG ILE PRO GLN          
SEQRES  22 A  326  ASN ILE GLN VAL PHE ASP PHE THR PHE SER PRO GLU GLU          
SEQRES  23 A  326  MET LYS GLN LEU ASP ALA LEU ASN LYS ASN LEU ARG PHE          
SEQRES  24 A  326  ILE VAL PRO MET LEU THR VAL ASP GLY LYS ARG VAL PRO          
SEQRES  25 A  326  ARG ASP ALA GLY HIS PRO LEU TYR PRO PHE ASN ASP PRO          
SEQRES  26 A  326  TYR                                                          
HET    NAP  A 350      48                                                       
HETNAM     NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE                 
HETSYN     NAP 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE                       
FORMUL   2  NAP    C21 H28 N7 O17 P3                                            
FORMUL   3  HOH   *267(H2 O)                                                    
HELIX    1   1 GLN A   28  VAL A   39  1                                  12    
HELIX    2   2 ALA A   47  GLY A   51  5                                   5    
HELIX    3   3 ASN A   52  GLN A   61  1                                  10    
HELIX    4   4 PRO A   71  LEU A   75  5                                   5    
HELIX    5   5 TRP A   82  HIS A   86  5                                   5    
HELIX    6   6 HIS A   87  GLN A  103  1                                  17    
HELIX    7   7 HIS A  139  LYS A  153  1                                  15    
HELIX    8   8 SER A  165  SER A  174  1                                  10    
HELIX    9   9 GLN A  193  GLY A  204  1                                  12    
HELIX   10  10 GLU A  231  TYR A  241  1                                  11    
HELIX   11  11 SER A  244  ARG A  256  1                                  13    
HELIX   12  12 ARG A  269  GLN A  275  1                                   7    
HELIX   13  13 SER A  282  ALA A  291  1                                  10    
SHEET    1   A 2 CYS A   5  LEU A   7  0                                        
SHEET    2   A 2 LYS A  13  PRO A  15 -1  N  MET A  14   O  VAL A   6           
SHEET    1   B 7 HIS A  43  ASP A  45  0                                        
SHEET    2   B 7 PHE A  76  LEU A  81  1  O  PHE A  76   N  ILE A  44           
SHEET    3   B 7 LEU A 109  MET A 112  1  N  LEU A 109   O  VAL A  77           
SHEET    4   B 7 LEU A 159  SER A 162  1  O  GLY A 160   N  MET A 112           
SHEET    5   B 7 VAL A 182  GLU A 186  1  O  VAL A 182   N  LEU A 161           
SHEET    6   B 7 GLU A 206  TYR A 210  1  O  GLU A 206   N  LEU A 183           
SHEET    7   B 7 ILE A 259  CYS A 260  1  O  ILE A 259   N  ALA A 209           
SHEET    1   C 2 LYS A 127  ASN A 128  0                                        
SHEET    2   C 2 THR A 132  ILE A 133 -1  O  THR A 132   N  ASN A 128           
CISPEP   1 GLU A  225    PRO A  226          0        -0.13                     
SITE     1 AC1 30 GLY A  20  THR A  21  TRP A  22  ASP A  45                    
SITE     2 AC1 30 LYS A  80  HIS A 113  SER A 162  ASN A 163                    
SITE     3 AC1 30 GLN A 184  TYR A 210  SER A 211  PRO A 212                    
SITE     4 AC1 30 LEU A 213  GLY A 214  SER A 215  SER A 216                    
SITE     5 AC1 30 ALA A 246  ILE A 261  PRO A 262  LYS A 263                    
SITE     6 AC1 30 SER A 264  VAL A 265  THR A 266  ARG A 269                    
SITE     7 AC1 30 ASN A 273  HOH A 411  HOH A 458  HOH A 471                    
SITE     8 AC1 30 HOH A 549  HOH A 644                                          
CRYST1   53.290   70.120   92.720  90.00  90.00  90.00 P 21 21 21    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      0.018765  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014261  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010785        0.00000