HEADER    BIOSYNTHETIC PROTEIN                    23-JUN-18   6A5G              
TITLE     THE STRUCTURE OF [4+2] AND [6+4] CYCLASE IN THE BIOSYNTHETIC PATHWAY  
TITLE    2 OF STREPTOSEOMYCIN                                                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: [4+2] AND [4+6] CYCLASE STMD;                              
COMPND   3 CHAIN: A, C, D, B;                                                   
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES SEOULENSIS;                        
SOURCE   3 ORGANISM_TAXID: 73044;                                               
SOURCE   4 STRAIN: A01;                                                         
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI 'BL21-GOLD(DE3)PLYSS AG';        
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 866768                                      
KEYWDS    [4+2] AND [4+6] CYCLASE, STREPTOSEOMYCIN, BIOSYNTHESIS, BIOSYNTHETIC  
KEYWDS   2 PROTEIN                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.ZHANG,H.M.GE                                                        
REVDAT   4   22-NOV-23 6A5G    1       REMARK                                   
REVDAT   3   17-APR-19 6A5G    1       JRNL                                     
REVDAT   2   10-APR-19 6A5G    1       JRNL                                     
REVDAT   1   06-FEB-19 6A5G    0                                                
JRNL        AUTH   B.ZHANG,K.B.WANG,W.WANG,X.WANG,F.LIU,J.ZHU,J.SHI,L.Y.LI,     
JRNL        AUTH 2 H.HAN,K.XU,H.Y.QIAO,X.ZHANG,R.H.JIAO,K.N.HOUK,Y.LIANG,       
JRNL        AUTH 3 R.X.TAN,H.M.GE                                               
JRNL        TITL   ENZYME-CATALYSED [6+4] CYCLOADDITIONS IN THE BIOSYNTHESIS OF 
JRNL        TITL 2 NATURAL PRODUCTS.                                            
JRNL        REF    NATURE                        V. 568   122 2019              
JRNL        REFN                   ESSN 1476-4687                               
JRNL        PMID   30867595                                                     
JRNL        DOI    10.1038/S41586-019-1021-X                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.30 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.13_2998                                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.60                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 90.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 24828                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.185                           
REMARK   3   R VALUE            (WORKING SET) : 0.180                           
REMARK   3   FREE R VALUE                     : 0.246                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 8.010                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1989                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 48.6146 -  5.5406    0.99     1935   168  0.1901 0.2336        
REMARK   3     2  5.5406 -  4.3987    1.00     1844   161  0.1521 0.1998        
REMARK   3     3  4.3987 -  3.8429    0.85     1548   134  0.1527 0.2056        
REMARK   3     4  3.8429 -  3.4917    0.80     1438   125  0.1776 0.2369        
REMARK   3     5  3.4917 -  3.2415    0.76     1367   118  0.1847 0.2517        
REMARK   3     6  3.2415 -  3.0504    1.00     1779   156  0.1834 0.2523        
REMARK   3     7  3.0504 -  2.8976    1.00     1777   154  0.1933 0.2489        
REMARK   3     8  2.8976 -  2.7715    1.00     1795   157  0.1991 0.2746        
REMARK   3     9  2.7715 -  2.6648    0.98     1132   100  0.2036 0.2929        
REMARK   3    10  2.6648 -  2.5729    0.97     1255   110  0.1911 0.2851        
REMARK   3    11  2.5729 -  2.4924    0.99     1738   150  0.1882 0.2928        
REMARK   3    12  2.4924 -  2.4212    0.99     1776   154  0.1782 0.2823        
REMARK   3    13  2.4212 -  2.3574    0.99     1727   151  0.1846 0.2775        
REMARK   3    14  2.3574 -  2.2999    0.98     1728   151  0.2029 0.2862        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : NULL                                          
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.280            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.910           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 23.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 28.26                          
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :   NULL           NULL                                  
REMARK   3   ANGLE     :   NULL           NULL                                  
REMARK   3   CHIRALITY :   NULL           NULL                                  
REMARK   3   PLANARITY :   NULL           NULL                                  
REMARK   3   DIHEDRAL  :   NULL           NULL                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 1                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: ALL                                                    
REMARK   3    ORIGIN FOR THE GROUP (A):  15.0069  20.5172  37.2269              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1590 T22:   0.1431                                     
REMARK   3      T33:   0.1889 T12:   0.0034                                     
REMARK   3      T13:  -0.0201 T23:   0.0081                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.4791 L22:   0.4012                                     
REMARK   3      L33:   1.0118 L12:   0.0085                                     
REMARK   3      L13:  -0.1021 L23:   0.2311                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0049 S12:  -0.0016 S13:   0.0655                       
REMARK   3      S21:  -0.0070 S22:   0.0045 S23:  -0.0316                       
REMARK   3      S31:  -0.1146 S32:   0.0466 S33:  -0.0015                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : 1                                           
REMARK   3   NCS GROUP : 1                                                      
REMARK   3    NCS OPERATOR : 1                                                  
REMARK   3     REFERENCE SELECTION: CHAIN A                                     
REMARK   3     SELECTION          : (CHAIN B AND (RESID 3 THROUGH 117 OR        
REMARK   3                          (RESID 118 AND (NAME N OR NAME CA OR NAME   
REMARK   3                          C OR NAME O OR NAME CB )) OR RESID 119      
REMARK   3                          THROUGH 152))                               
REMARK   3     ATOM PAIRS NUMBER  : 2777                                        
REMARK   3     RMSD               : NULL                                        
REMARK   3    NCS OPERATOR : 2                                                  
REMARK   3     REFERENCE SELECTION: CHAIN A                                     
REMARK   3     SELECTION          : (CHAIN C AND (RESID 3 THROUGH 117 OR        
REMARK   3                          (RESID 118 AND (NAME N OR NAME CA OR NAME   
REMARK   3                          C OR NAME O OR NAME CB )) OR RESID 119      
REMARK   3                          THROUGH 152))                               
REMARK   3     ATOM PAIRS NUMBER  : 2777                                        
REMARK   3     RMSD               : NULL                                        
REMARK   3    NCS OPERATOR : 3                                                  
REMARK   3     REFERENCE SELECTION: CHAIN A                                     
REMARK   3     SELECTION          : (CHAIN D AND (RESID 3 THROUGH 117 OR        
REMARK   3                          (RESID 118 AND (NAME N OR NAME CA OR NAME   
REMARK   3                          C OR NAME O OR NAME CB )) OR RESID 119      
REMARK   3                          THROUGH 152))                               
REMARK   3     ATOM PAIRS NUMBER  : 2777                                        
REMARK   3     RMSD               : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 6A5G COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 25-JUN-18.                  
REMARK 100 THE DEPOSITION ID IS D_1300008183.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 22-JAN-18                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRF                               
REMARK 200  BEAMLINE                       : BL18U1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97853                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS3 S 6M              
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 24828                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.300                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.604                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 90.7                               
REMARK 200  DATA REDUNDANCY                : 6.400                              
REMARK 200  R MERGE                    (I) : 0.19900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.9300                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.38                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHENIX                                                
REMARK 200 STARTING MODEL: 6A5F                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.55                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 2 M AMMONIUM SULFATE, 100 MM MES, PH     
REMARK 280  6.5, 200MM NACL, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE         
REMARK 280  295.15K                                                             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 2 21                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,-Y,-Z+1/2                                         
REMARK 290       4555   -X+1/2,-Y,Z+1/2                                         
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        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       26.05450            
REMARK 290   SMTRY2   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       67.39850            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       26.05450            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       67.39850            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1980 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 13940 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -16.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1950 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 14440 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -16.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     ALA A     2                                                      
REMARK 465     GLN A   153                                                      
REMARK 465     LEU A   154                                                      
REMARK 465     ALA A   155                                                      
REMARK 465     ALA A   156                                                      
REMARK 465     ALA A   157                                                      
REMARK 465     LEU A   158                                                      
REMARK 465     GLU A   159                                                      
REMARK 465     HIS A   160                                                      
REMARK 465     HIS A   161                                                      
REMARK 465     HIS A   162                                                      
REMARK 465     HIS A   163                                                      
REMARK 465     HIS A   164                                                      
REMARK 465     HIS A   165                                                      
REMARK 465     MET C     1                                                      
REMARK 465     ALA C     2                                                      
REMARK 465     GLN C   153                                                      
REMARK 465     LEU C   154                                                      
REMARK 465     ALA C   155                                                      
REMARK 465     ALA C   156                                                      
REMARK 465     ALA C   157                                                      
REMARK 465     LEU C   158                                                      
REMARK 465     GLU C   159                                                      
REMARK 465     HIS C   160                                                      
REMARK 465     HIS C   161                                                      
REMARK 465     HIS C   162                                                      
REMARK 465     HIS C   163                                                      
REMARK 465     HIS C   164                                                      
REMARK 465     HIS C   165                                                      
REMARK 465     MET D     1                                                      
REMARK 465     ALA D     2                                                      
REMARK 465     GLN D   153                                                      
REMARK 465     LEU D   154                                                      
REMARK 465     ALA D   155                                                      
REMARK 465     ALA D   156                                                      
REMARK 465     ALA D   157                                                      
REMARK 465     LEU D   158                                                      
REMARK 465     GLU D   159                                                      
REMARK 465     HIS D   160                                                      
REMARK 465     HIS D   161                                                      
REMARK 465     HIS D   162                                                      
REMARK 465     HIS D   163                                                      
REMARK 465     HIS D   164                                                      
REMARK 465     HIS D   165                                                      
REMARK 465     MET B     1                                                      
REMARK 465     ALA B     2                                                      
REMARK 465     HIS B   160                                                      
REMARK 465     HIS B   161                                                      
REMARK 465     HIS B   162                                                      
REMARK 465     HIS B   163                                                      
REMARK 465     HIS B   164                                                      
REMARK 465     HIS B   165                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU A 118    CG   CD   OE1  OE2                                  
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 B   291     O    HOH B   294              2.04            
REMARK 500   OG1  THR B     5     OE1  GLU B     7              2.04            
REMARK 500   OE2  GLU A   124     OH   TYR A   126              2.10            
REMARK 500   O    HOH A   244     O    HOH A   265              2.13            
REMARK 500   O    HOH C   210     O    HOH C   242              2.17            
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   NE2  GLN C    57     O    GLY D    64     3565     2.11            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    CYS B  18   CB    CYS B  18   SG     -0.119                       
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    THR B  17       34.61    -84.20                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 268        DISTANCE =  5.83 ANGSTROMS                       
REMARK 525    HOH B 294        DISTANCE =  6.09 ANGSTROMS                       
DBREF  6A5G A    1   165  PDB    6A5G     6A5G             1    165             
DBREF  6A5G C    1   165  PDB    6A5G     6A5G             1    165             
DBREF  6A5G D    1   165  PDB    6A5G     6A5G             1    165             
DBREF  6A5G B    1   165  PDB    6A5G     6A5G             1    165             
SEQRES   1 A  165  MET ALA GLU ILE THR GLN GLU LEU VAL ALA ALA ALA TYR          
SEQRES   2 A  165  GLU ALA VAL THR CYS GLY ASP ARG GLU LYS THR ALA LEU          
SEQRES   3 A  165  TYR TRP SER GLU ASP LEU ARG PHE PHE ALA PRO GLY SER          
SEQRES   4 A  165  HIS ALA GLY SER GLY TRP ARG VAL GLY ILE ASP ASP PHE          
SEQRES   5 A  165  LEU SER TYR VAL GLN ASP MET LEU ALA ALA SER GLY GLY          
SEQRES   6 A  165  SER TRP SER MET GLN PRO ILE THR LEU LEU ILE ASN ASN          
SEQRES   7 A  165  GLU ASP GLY TYR SER VAL ASP ALA ASN ARG ILE HIS ALA          
SEQRES   8 A  165  VAL ARG GLU GLY ALA PRO LYS ASP SER THR SER PRO PHE          
SEQRES   9 A  165  ASP VAL LEU ASP ILE SER GLY VAL GLN MET LEU LYS TRP          
SEQRES  10 A  165  GLU ASN GLY LYS VAL VAL GLU GLY TYR GLY GLY ILE PHE          
SEQRES  11 A  165  GLY ASP GLY GLY THR ASN TYR THR GLN TRP TRP SER PRO          
SEQRES  12 A  165  VAL ASP GLY ALA GLY GLU ARG ARG TYR GLN LEU ALA ALA          
SEQRES  13 A  165  ALA LEU GLU HIS HIS HIS HIS HIS HIS                          
SEQRES   1 C  165  MET ALA GLU ILE THR GLN GLU LEU VAL ALA ALA ALA TYR          
SEQRES   2 C  165  GLU ALA VAL THR CYS GLY ASP ARG GLU LYS THR ALA LEU          
SEQRES   3 C  165  TYR TRP SER GLU ASP LEU ARG PHE PHE ALA PRO GLY SER          
SEQRES   4 C  165  HIS ALA GLY SER GLY TRP ARG VAL GLY ILE ASP ASP PHE          
SEQRES   5 C  165  LEU SER TYR VAL GLN ASP MET LEU ALA ALA SER GLY GLY          
SEQRES   6 C  165  SER TRP SER MET GLN PRO ILE THR LEU LEU ILE ASN ASN          
SEQRES   7 C  165  GLU ASP GLY TYR SER VAL ASP ALA ASN ARG ILE HIS ALA          
SEQRES   8 C  165  VAL ARG GLU GLY ALA PRO LYS ASP SER THR SER PRO PHE          
SEQRES   9 C  165  ASP VAL LEU ASP ILE SER GLY VAL GLN MET LEU LYS TRP          
SEQRES  10 C  165  GLU ASN GLY LYS VAL VAL GLU GLY TYR GLY GLY ILE PHE          
SEQRES  11 C  165  GLY ASP GLY GLY THR ASN TYR THR GLN TRP TRP SER PRO          
SEQRES  12 C  165  VAL ASP GLY ALA GLY GLU ARG ARG TYR GLN LEU ALA ALA          
SEQRES  13 C  165  ALA LEU GLU HIS HIS HIS HIS HIS HIS                          
SEQRES   1 D  165  MET ALA GLU ILE THR GLN GLU LEU VAL ALA ALA ALA TYR          
SEQRES   2 D  165  GLU ALA VAL THR CYS GLY ASP ARG GLU LYS THR ALA LEU          
SEQRES   3 D  165  TYR TRP SER GLU ASP LEU ARG PHE PHE ALA PRO GLY SER          
SEQRES   4 D  165  HIS ALA GLY SER GLY TRP ARG VAL GLY ILE ASP ASP PHE          
SEQRES   5 D  165  LEU SER TYR VAL GLN ASP MET LEU ALA ALA SER GLY GLY          
SEQRES   6 D  165  SER TRP SER MET GLN PRO ILE THR LEU LEU ILE ASN ASN          
SEQRES   7 D  165  GLU ASP GLY TYR SER VAL ASP ALA ASN ARG ILE HIS ALA          
SEQRES   8 D  165  VAL ARG GLU GLY ALA PRO LYS ASP SER THR SER PRO PHE          
SEQRES   9 D  165  ASP VAL LEU ASP ILE SER GLY VAL GLN MET LEU LYS TRP          
SEQRES  10 D  165  GLU ASN GLY LYS VAL VAL GLU GLY TYR GLY GLY ILE PHE          
SEQRES  11 D  165  GLY ASP GLY GLY THR ASN TYR THR GLN TRP TRP SER PRO          
SEQRES  12 D  165  VAL ASP GLY ALA GLY GLU ARG ARG TYR GLN LEU ALA ALA          
SEQRES  13 D  165  ALA LEU GLU HIS HIS HIS HIS HIS HIS                          
SEQRES   1 B  165  MET ALA GLU ILE THR GLN GLU LEU VAL ALA ALA ALA TYR          
SEQRES   2 B  165  GLU ALA VAL THR CYS GLY ASP ARG GLU LYS THR ALA LEU          
SEQRES   3 B  165  TYR TRP SER GLU ASP LEU ARG PHE PHE ALA PRO GLY SER          
SEQRES   4 B  165  HIS ALA GLY SER GLY TRP ARG VAL GLY ILE ASP ASP PHE          
SEQRES   5 B  165  LEU SER TYR VAL GLN ASP MET LEU ALA ALA SER GLY GLY          
SEQRES   6 B  165  SER TRP SER MET GLN PRO ILE THR LEU LEU ILE ASN ASN          
SEQRES   7 B  165  GLU ASP GLY TYR SER VAL ASP ALA ASN ARG ILE HIS ALA          
SEQRES   8 B  165  VAL ARG GLU GLY ALA PRO LYS ASP SER THR SER PRO PHE          
SEQRES   9 B  165  ASP VAL LEU ASP ILE SER GLY VAL GLN MET LEU LYS TRP          
SEQRES  10 B  165  GLU ASN GLY LYS VAL VAL GLU GLY TYR GLY GLY ILE PHE          
SEQRES  11 B  165  GLY ASP GLY GLY THR ASN TYR THR GLN TRP TRP SER PRO          
SEQRES  12 B  165  VAL ASP GLY ALA GLY GLU ARG ARG TYR GLN LEU ALA ALA          
SEQRES  13 B  165  ALA LEU GLU HIS HIS HIS HIS HIS HIS                          
FORMUL   5  HOH   *251(H2 O)                                                    
HELIX    1 AA1 THR A    5  THR A   17  1                                  13    
HELIX    2 AA2 ASP A   20  ALA A   25  1                                   6    
HELIX    3 AA3 GLY A   48  SER A   63  1                                  16    
HELIX    4 AA4 ASP A  132  SER A  142  1                                  11    
HELIX    5 AA5 THR C    5  THR C   17  1                                  13    
HELIX    6 AA6 ASP C   20  ALA C   25  1                                   6    
HELIX    7 AA7 GLY C   48  GLY C   64  1                                  17    
HELIX    8 AA8 ASP C  132  SER C  142  1                                  11    
HELIX    9 AA9 THR D    5  GLY D   19  1                                  15    
HELIX   10 AB1 ASP D   20  TYR D   27  1                                   8    
HELIX   11 AB2 GLY D   48  GLY D   64  1                                  17    
HELIX   12 AB3 ASP D  132  SER D  142  1                                  11    
HELIX   13 AB4 THR B    5  THR B   17  1                                  13    
HELIX   14 AB5 ASP B   20  ALA B   25  1                                   6    
HELIX   15 AB6 GLY B   48  SER B   63  1                                  16    
HELIX   16 AB7 ASP B  132  SER B  142  1                                  11    
SHEET    1 AA1 6 GLY A  44  VAL A  47  0                                        
SHEET    2 AA1 6 TRP A  28  ALA A  36 -1  N  PHE A  34   O  ARG A  46           
SHEET    3 AA1 6 LYS A 121  PHE A 130  1  O  GLY A 125   N  PHE A  35           
SHEET    4 AA1 6 LYS D 121  PHE D 130 -1  O  ILE D 129   N  ILE A 129           
SHEET    5 AA1 6 TRP D  28  ALA D  36  1  N  PHE D  35   O  GLY D 125           
SHEET    6 AA1 6 GLY D  44  VAL D  47 -1  O  ARG D  46   N  PHE D  34           
SHEET    1 AA2 8 SER A  68  ASN A  77  0                                        
SHEET    2 AA2 8 TYR A  82  VAL A  92 -1  O  ALA A  86   N  ILE A  72           
SHEET    3 AA2 8 VAL A 106  GLU A 118 -1  O  LEU A 107   N  ALA A  91           
SHEET    4 AA2 8 LYS A 121  PHE A 130 -1  O  GLY A 128   N  VAL A 112           
SHEET    5 AA2 8 LYS D 121  PHE D 130 -1  O  ILE D 129   N  ILE A 129           
SHEET    6 AA2 8 VAL D 106  GLU D 118 -1  N  LYS D 116   O  GLU D 124           
SHEET    7 AA2 8 TYR D  82  VAL D  92 -1  N  ALA D  91   O  LEU D 107           
SHEET    8 AA2 8 SER D  68  ASN D  77 -1  N  ILE D  72   O  ALA D  86           
SHEET    1 AA3 6 GLY C  44  VAL C  47  0                                        
SHEET    2 AA3 6 TRP C  28  ALA C  36 -1  N  PHE C  34   O  ARG C  46           
SHEET    3 AA3 6 LYS C 121  PHE C 130  1  O  VAL C 122   N  SER C  29           
SHEET    4 AA3 6 LYS B 121  PHE B 130 -1  O  ILE B 129   N  ILE C 129           
SHEET    5 AA3 6 TRP B  28  ALA B  36  1  N  PHE B  35   O  GLY B 125           
SHEET    6 AA3 6 GLY B  44  VAL B  47 -1  O  ARG B  46   N  PHE B  34           
SHEET    1 AA4 8 SER C  68  ASN C  77  0                                        
SHEET    2 AA4 8 TYR C  82  VAL C  92 -1  O  VAL C  84   N  LEU C  75           
SHEET    3 AA4 8 VAL C 106  GLU C 118 -1  O  LEU C 107   N  ALA C  91           
SHEET    4 AA4 8 LYS C 121  PHE C 130 -1  O  GLU C 124   N  LYS C 116           
SHEET    5 AA4 8 LYS B 121  PHE B 130 -1  O  ILE B 129   N  ILE C 129           
SHEET    6 AA4 8 VAL B 106  GLU B 118 -1  N  SER B 110   O  PHE B 130           
SHEET    7 AA4 8 TYR B  82  VAL B  92 -1  N  ALA B  91   O  LEU B 107           
SHEET    8 AA4 8 SER B  68  ASN B  77 -1  N  ILE B  72   O  ALA B  86           
CRYST1   52.109   85.023  134.797  90.00  90.00  90.00 P 21 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      0.019191  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011762  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007419        0.00000