HEADER    TRANSFERASE                             26-SEP-01   1K27              
TITLE     CRYSTAL STRUCTURE OF 5'-DEOXY-5'-METHYLTHIOADENOSINE PHOSPHORYLASE IN 
TITLE    2 COMPLEX WITH A TRANSITION STATE ANALOGUE                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-DEOXY-5'-METHYLTHIOADENOSINE PHOSPHORYLASE;             
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: 5'-METHYLTHIOADENOSINE PHOSPHORYLASE, MTAP;                 
COMPND   5 EC: 2.4.2.28;                                                        
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
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: PET-28A                                   
KEYWDS    MTAP, METHYLTHIOADENOSINE PHOSPHORYLASE, TRANSITION STATE ANALOGUE,   
KEYWDS   2 PHOSPHATE, TRANSFERASE                                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    W.SHI,V.SINGH,P.C.TYLER,R.H.FURNEAUX,S.C.ALMO,V.L.SCHRAMM             
REVDAT   6   16-AUG-23 1K27    1       REMARK                                   
REVDAT   5   13-JUL-11 1K27    1       VERSN                                    
REVDAT   4   24-FEB-09 1K27    1       VERSN                                    
REVDAT   3   25-JAN-05 1K27    1       JRNL                                     
REVDAT   2   21-DEC-04 1K27    1       FORMUL HETNAM                            
REVDAT   1   30-SEP-03 1K27    0                                                
JRNL        AUTH   V.SINGH,W.SHI,G.B.EVANS,P.C.TYLER,R.H.FURNEAUX,S.C.ALMO,     
JRNL        AUTH 2 V.L.SCHRAMM                                                  
JRNL        TITL   PICOMOLAR TRANSITION STATE ANALOGUE INHIBITORS OF HUMAN      
JRNL        TITL 2 5'-METHYLTHIOADENOSINE PHOSPHORYLASE AND X-RAY STRUCTURE     
JRNL        TITL 3 WITH MT-IMMUCILLIN-A                                         
JRNL        REF    BIOCHEMISTRY                  V.  43     9 2004              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   14705926                                                     
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.95 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) : 1.95                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 94.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 26776                          
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) : 0.180                           
REMARK   3   FREE R VALUE                     : 0.207                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 2676                            
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           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.95                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.07                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 89.70                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 3748                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1960                       
REMARK   3   BIN FREE R VALUE                    : 0.2240                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.10                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 418                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.011                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2084                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 25                                      
REMARK   3   SOLVENT ATOMS            : 138                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 7.70                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.90                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.24000                                              
REMARK   3    B22 (A**2) : 0.24000                                              
REMARK   3    B33 (A**2) : -0.48000                                             
REMARK   3    B12 (A**2) : 0.86000                                              
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) : 0.20                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.09                            
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) : 0.22                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.13                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.200                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.00                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.790                           
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) : 1.270 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.930 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.150 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.190 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.41                                                 
REMARK   3   BSOL        : 44.33                                                
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 1K27 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-SEP-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000014467.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 27-MAR-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X9B                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.98                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 28021                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.950                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY                : 6.000                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.06400                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.02                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.80                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.38700                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: 1CG6                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 60.13                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.08                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000, SPERMIDINE, TRIS, PH 8.0,      
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3 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                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-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 -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        0.00000            
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        0.00000            
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        0.00000            
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        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 300 REMARK: THE OTHER TWO MONOMERS OF THE BIOLOGICAL ASSEMBLY IS         
REMARK 300 GENERATED BY THE THREE FOLD AXIS, -Y, X-Y, Z; AND -X+Y, -X, Z.       
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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 9550 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 29550 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -75.0 KCAL/MOL                        
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      122.23100            
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 350   BIOMT1   3 -0.500000  0.866025  0.000000       61.11550            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000      105.85515            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 539  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     ALA A     2                                                      
REMARK 465     SER A     3                                                      
REMARK 465     GLY A     4                                                      
REMARK 465     THR A     5                                                      
REMARK 465     THR A     6                                                      
REMARK 465     THR A     7                                                      
REMARK 465     THR A     8                                                      
REMARK 465     LYS A   225                                                      
REMARK 465     GLU A   226                                                      
REMARK 465     HIS A   227                                                      
REMARK 465     ARG A   282                                                      
REMARK 465     HIS A   283                                                      
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    LYS A  51     -121.05     65.21                                   
REMARK 500    ASP A 222     -124.98     54.46                                   
REMARK 500    CYS A 223       15.05   -140.20                                   
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 PO4 A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MTM A 401                 
DBREF  1K27 A    1   283  UNP    Q13126   MTAP_HUMAN       1    283             
SEQADV 1K27 VAL A   56  UNP  Q13126    ILE    56 SEE REMARK 999                 
SEQRES   1 A  283  MET ALA SER GLY THR THR THR THR ALA VAL LYS ILE GLY          
SEQRES   2 A  283  ILE ILE GLY GLY THR GLY LEU ASP ASP PRO GLU ILE LEU          
SEQRES   3 A  283  GLU GLY ARG THR GLU LYS TYR VAL ASP THR PRO PHE GLY          
SEQRES   4 A  283  LYS PRO SER ASP ALA LEU ILE LEU GLY LYS ILE LYS ASN          
SEQRES   5 A  283  VAL ASP CYS VAL LEU LEU ALA ARG HIS GLY ARG GLN HIS          
SEQRES   6 A  283  THR ILE MET PRO SER LYS VAL ASN TYR GLN ALA ASN ILE          
SEQRES   7 A  283  TRP ALA LEU LYS GLU GLU GLY CYS THR HIS VAL ILE VAL          
SEQRES   8 A  283  THR THR ALA CYS GLY SER LEU ARG GLU GLU ILE GLN PRO          
SEQRES   9 A  283  GLY ASP ILE VAL ILE ILE ASP GLN PHE ILE ASP ARG THR          
SEQRES  10 A  283  THR MET ARG PRO GLN SER PHE TYR ASP GLY SER HIS SER          
SEQRES  11 A  283  CYS ALA ARG GLY VAL CYS HIS ILE PRO MET ALA GLU PRO          
SEQRES  12 A  283  PHE CYS PRO LYS THR ARG GLU VAL LEU ILE GLU THR ALA          
SEQRES  13 A  283  LYS LYS LEU GLY LEU ARG CYS HIS SER LYS GLY THR MET          
SEQRES  14 A  283  VAL THR ILE GLU GLY PRO ARG PHE SER SER ARG ALA GLU          
SEQRES  15 A  283  SER PHE MET PHE ARG THR TRP GLY ALA ASP VAL ILE ASN          
SEQRES  16 A  283  MET THR THR VAL PRO GLU VAL VAL LEU ALA LYS GLU ALA          
SEQRES  17 A  283  GLY ILE CYS TYR ALA SER ILE ALA MET ALA THR ASP TYR          
SEQRES  18 A  283  ASP CYS TRP LYS GLU HIS GLU GLU ALA VAL SER VAL ASP          
SEQRES  19 A  283  ARG VAL LEU LYS THR LEU LYS GLU ASN ALA ASN LYS ALA          
SEQRES  20 A  283  LYS SER LEU LEU LEU THR THR ILE PRO GLN ILE GLY SER          
SEQRES  21 A  283  THR GLU TRP SER GLU THR LEU HIS ASN LEU LYS ASN MET          
SEQRES  22 A  283  ALA GLN PHE SER VAL LEU LEU PRO ARG HIS                      
HET    PO4  A 301       5                                                       
HET    MTM  A 401      20                                                       
HETNAM     PO4 PHOSPHATE ION                                                    
HETNAM     MTM (3S,4R)-2-(4-AMINO-5H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)-5-           
HETNAM   2 MTM  [(METHYLSULFANYL)METHYL]PYRROLIDINE-3,4-DIOL                    
HETSYN     MTM (1S)-1-(9-DEAZAADENIN-9-YL)-1,4,5-TRIDEOXY-1,4-IMINO-5-          
HETSYN   2 MTM  METHYLTHIO-D-RIBITOL                                            
FORMUL   2  PO4    O4 P 3-                                                      
FORMUL   3  MTM    C12 H19 N5 O2 S                                              
FORMUL   4  HOH   *138(H2 O)                                                    
HELIX    1   1 ASP A   22  LEU A   26  5                                   5    
HELIX    2   2 MET A   68  VAL A   72  5                                   5    
HELIX    3   3 ASN A   73  GLU A   84  1                                  12    
HELIX    4   4 CYS A  145  LEU A  159  1                                  15    
HELIX    5   5 SER A  179  TRP A  189  1                                  11    
HELIX    6   6 THR A  197  ALA A  208  1                                  12    
HELIX    7   7 SER A  232  GLY A  259  1                                  28    
HELIX    8   8 TRP A  263  PHE A  276  1                                  14    
SHEET    1   A 8 CYS A 163  HIS A 164  0                                        
SHEET    2   A 8 ILE A 107  VAL A 108  1  N  ILE A 107   O  HIS A 164           
SHEET    3   A 8 CYS A 211  ASP A 220 -1  O  ALA A 216   N  VAL A 108           
SHEET    4   A 8 HIS A  88  SER A  97  1  N  THR A  93   O  MET A 217           
SHEET    5   A 8 LYS A  11  GLY A  16  1  N  GLY A  13   O  HIS A  88           
SHEET    6   A 8 VAL A  53  ALA A  59  1  O  VAL A  56   N  ILE A  14           
SHEET    7   A 8 LEU A  45  ILE A  50 -1  N  GLY A  48   O  CYS A  55           
SHEET    8   A 8 GLU A  27  LYS A  32 -1  N  LYS A  32   O  LEU A  45           
SHEET    1   B 7 CYS A 163  HIS A 164  0                                        
SHEET    2   B 7 ILE A 107  VAL A 108  1  N  ILE A 107   O  HIS A 164           
SHEET    3   B 7 CYS A 211  ASP A 220 -1  O  ALA A 216   N  VAL A 108           
SHEET    4   B 7 HIS A  88  SER A  97  1  N  THR A  93   O  MET A 217           
SHEET    5   B 7 VAL A 193  ASN A 195 -1  O  ILE A 194   N  GLY A  96           
SHEET    6   B 7 THR A 168  ILE A 172  1  N  VAL A 170   O  VAL A 193           
SHEET    7   B 7 GLN A 112  ARG A 116  1  N  GLN A 112   O  MET A 169           
SHEET    1   C 2 VAL A 135  CYS A 136  0                                        
SHEET    2   C 2 VAL A 278  LEU A 279 -1  O  LEU A 279   N  VAL A 135           
CISPEP   1 GLY A  174    PRO A  175          0         0.18                     
CISPEP   2 VAL A  199    PRO A  200          0         0.65                     
SITE     1 AC1  8 GLY A  17  THR A  18  ARG A  60  HIS A  61                    
SITE     2 AC1  8 THR A  93  ALA A  94  THR A 197  MTM A 401                    
SITE     1 AC2 15 HIS A  61  PRO A  69  ALA A  94  CYS A  95                    
SITE     2 AC2 15 GLY A  96  HIS A 137  PHE A 177  ILE A 194                    
SITE     3 AC2 15 ASN A 195  MET A 196  THR A 219  ASP A 220                    
SITE     4 AC2 15 ASP A 222  PO4 A 301  HOH A 510                               
CRYST1  122.231  122.231   44.743  90.00  90.00 120.00 P 3 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      0.008181  0.004723  0.000000        0.00000                         
SCALE2      0.000000  0.009447  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.022350        0.00000