HEADER    HYDROLASE                               24-MAR-14   4PXG              
TITLE     CRYSTAL STRUCTURE OF TYPEII RESTRICTION ENZYME SAU3AI                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TYPE-2 RESTRICTION ENZYME SAU3AI;                          
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: R.SAU3AI, ENDONUCLEASE SAU3AI, TYPE II RESTRICTION ENZYME   
COMPND   5 SAU3AI;                                                              
COMPND   6 EC: 3.1.21.4;                                                        
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS;                          
SOURCE   3 ORGANISM_TAXID: 1280;                                                
SOURCE   4 STRAIN: 3A;                                                          
SOURCE   5 GENE: SAU3AIR;                                                       
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: B834;                                      
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET15B                                    
KEYWDS    TYPE II RESTRICTION ENZYME, HYDROLASE                                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.Y.XU,F.YU,X.J.HU,J.H.HE                                             
REVDAT   2   30-OCT-24 4PXG    1       REMARK SEQADV LINK                       
REVDAT   1   25-MAR-15 4PXG    0                                                
JRNL        AUTH   C.Y.XU,F.YU,X.J.HU,J.H.HE                                    
JRNL        TITL   THE 2.45 A CRYSTAL STRUCTURE OF THE RESTRICTION ENDONUCLEASE 
JRNL        TITL 2 SAU3AI SUGGESTS A SELF-INHIBITION MECHANISM                  
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.45 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0049                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.45                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 43797                          
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 + TEST SET) : 0.226                           
REMARK   3   R VALUE            (WORKING SET) : 0.224                           
REMARK   3   FREE R VALUE                     : 0.263                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2331                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.45                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.51                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1964                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 58.06                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3960                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 111                          
REMARK   3   BIN FREE R VALUE                    : 0.4530                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 7608                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 31                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 71.96                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.41000                                              
REMARK   3    B22 (A**2) : -6.97000                                             
REMARK   3    B33 (A**2) : 6.56000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.432         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.280         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.245         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 11.307        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.939                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.914                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  7778 ; 0.012 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  7369 ; 0.004 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 10471 ; 1.361 ; 1.953       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 17071 ; 0.950 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   925 ; 5.851 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   386 ;36.560 ;25.389       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1430 ;15.358 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    28 ;15.635 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1100 ; 0.081 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  8715 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  1765 ; 0.004 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  3718 ; 5.418 ; 6.901       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  3717 ; 5.417 ; 6.901       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4637 ; 8.156 ;10.341       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  4638 ; 8.155 ;10.341       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  4059 ; 5.895 ; 7.342       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  4059 ; 5.895 ; 7.342       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  5834 ; 9.014 ;10.749       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  8699 ;11.774 ;53.827       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  8700 ;11.774 ;53.830       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NCS TYPE: LOCAL                                                    
REMARK   3   NUMBER OF DIFFERENT NCS PAIRS  : 1                                 
REMARK   3  GROUP  CHAIN1    RANGE     CHAIN2     RANGE    COUNT RMS  WEIGHT    
REMARK   3    1     A     6    489       B     6    489   28575  0.09  0.05     
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 4PXG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 09-APR-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000085340.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 07-JUL-07; 22-JUN-13               
REMARK 200  TEMPERATURE           (KELVIN) : 100; 100                           
REMARK 200  PH                             : 4.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y; Y                               
REMARK 200  RADIATION SOURCE               : BSRF; SSRF                         
REMARK 200  BEAMLINE                       : 3W1A; BL17U                        
REMARK 200  X-RAY GENERATOR MODEL          : NULL; NULL                         
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M; M                               
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9789; 0.9792                     
REMARK 200  MONOCHROMATOR                  : NULL; NULL                         
REMARK 200  OPTICS                         : NULL; NULL                         
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD; CCD                           
REMARK 200  DETECTOR MANUFACTURER          : MAR CCD 165 MM; ADSC QUANTUM       
REMARK 200                                   315R                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 47905                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.450                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 54.140                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 8.6                                
REMARK 200  DATA REDUNDANCY                : 11.60                              
REMARK 200  R MERGE                    (I) : 0.06200                            
REMARK 200  R SYM                      (I) : 0.06200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.45                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.68                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 24.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33100                            
REMARK 200  R SYM FOR SHELL            (I) : 0.40900                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; SINGLE WAVELENGTH           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 57.47                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.89                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 16% POLYETHYLENE GLYCOL 8000, 1M         
REMARK 280  SODIUM ACETATE, 0.2M CALCIUM CHLORIDE, PH 4.6, VAPOR DIFFUSION,     
REMARK 280  HANGING DROP, TEMPERATURE 277K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -X,Y,-Z+1/2                                             
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z                                           
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       95.57250            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       95.57250            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       34.82400            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       98.83650            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       34.82400            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       98.83650            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       95.57250            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       34.82400            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       98.83650            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       95.57250            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       34.82400            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       98.83650            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
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: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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     MSE A   -19                                                      
REMARK 465     GLY A   -18                                                      
REMARK 465     SER A   -17                                                      
REMARK 465     SER A   -16                                                      
REMARK 465     HIS A   -15                                                      
REMARK 465     HIS A   -14                                                      
REMARK 465     HIS A   -13                                                      
REMARK 465     HIS A   -12                                                      
REMARK 465     HIS A   -11                                                      
REMARK 465     HIS A   -10                                                      
REMARK 465     SER A    -9                                                      
REMARK 465     SER A    -8                                                      
REMARK 465     GLY A    -7                                                      
REMARK 465     LEU A    -6                                                      
REMARK 465     VAL A    -5                                                      
REMARK 465     PRO A    -4                                                      
REMARK 465     ARG A    -3                                                      
REMARK 465     GLY A    -2                                                      
REMARK 465     SER A    -1                                                      
REMARK 465     HIS A     0                                                      
REMARK 465     MSE A     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     SER A     3                                                      
REMARK 465     TYR A     4                                                      
REMARK 465     LEU A     5                                                      
REMARK 465     GLN A    33                                                      
REMARK 465     SER A    34                                                      
REMARK 465     LYS A    35                                                      
REMARK 465     LYS A    48                                                      
REMARK 465     LYS A    49                                                      
REMARK 465     LYS A    50                                                      
REMARK 465     ASP A    51                                                      
REMARK 465     SER A    52                                                      
REMARK 465     ASP A    53                                                      
REMARK 465     SER A    54                                                      
REMARK 465     LYS A    55                                                      
REMARK 465     PRO A    56                                                      
REMARK 465     ASP A    57                                                      
REMARK 465     MSE A    58                                                      
REMARK 465     ALA A    59                                                      
REMARK 465     GLU A    60                                                      
REMARK 465     ALA A    61                                                      
REMARK 465     GLY A    62                                                      
REMARK 465     MSE B   -19                                                      
REMARK 465     GLY B   -18                                                      
REMARK 465     SER B   -17                                                      
REMARK 465     SER B   -16                                                      
REMARK 465     HIS B   -15                                                      
REMARK 465     HIS B   -14                                                      
REMARK 465     HIS B   -13                                                      
REMARK 465     HIS B   -12                                                      
REMARK 465     HIS B   -11                                                      
REMARK 465     HIS B   -10                                                      
REMARK 465     SER B    -9                                                      
REMARK 465     SER B    -8                                                      
REMARK 465     GLY B    -7                                                      
REMARK 465     LEU B    -6                                                      
REMARK 465     VAL B    -5                                                      
REMARK 465     PRO B    -4                                                      
REMARK 465     ARG B    -3                                                      
REMARK 465     GLY B    -2                                                      
REMARK 465     SER B    -1                                                      
REMARK 465     HIS B     0                                                      
REMARK 465     MSE B     1                                                      
REMARK 465     GLU B     2                                                      
REMARK 465     SER B     3                                                      
REMARK 465     TYR B     4                                                      
REMARK 465     LEU B     5                                                      
REMARK 465     GLN B    33                                                      
REMARK 465     SER B    34                                                      
REMARK 465     LYS B    35                                                      
REMARK 465     GLY B    47                                                      
REMARK 465     LYS B    48                                                      
REMARK 465     LYS B    49                                                      
REMARK 465     LYS B    50                                                      
REMARK 465     ASP B    51                                                      
REMARK 465     SER B    52                                                      
REMARK 465     ASP B    53                                                      
REMARK 465     SER B    54                                                      
REMARK 465     LYS B    55                                                      
REMARK 465     PRO B    56                                                      
REMARK 465     ASP B    57                                                      
REMARK 465     MSE B    58                                                      
REMARK 465     ALA B    59                                                      
REMARK 465     GLU B    60                                                      
REMARK 465     ALA B    61                                                      
REMARK 465     GLY B    62                                                      
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    ASN B   182     OG   SER B   185              1.85            
REMARK 500   ND2  ASN B   182     OG   SER B   184              1.88            
REMARK 500   O    ASN A   182     OG   SER A   185              1.91            
REMARK 500   ND2  ASN B    26     O    GLU B    29              1.96            
REMARK 500   O    ASN B   182     N    SER B   185              2.16            
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   OE1  GLU B    24     OE1  GLU B    24     3755     2.12            
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    ARG A 352   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    MSE B 318   N   -  CA  -  CB  ANGL. DEV. = -11.2 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    SER A  30       45.71    -85.65                                   
REMARK 500    LEU A  86     -164.93   -116.86                                   
REMARK 500    SER A 172      -67.45    -92.26                                   
REMARK 500    SER A 192      148.12   -171.98                                   
REMARK 500    LYS A 281       61.09   -112.79                                   
REMARK 500    ASP A 407      116.24   -163.17                                   
REMARK 500    LEU B  86     -155.32   -113.58                                   
REMARK 500    SER B 172      -66.87    -90.63                                   
REMARK 500    SER B 192      148.75   -170.15                                   
REMARK 500    SER B 261       49.09     70.03                                   
REMARK 500    LYS B 281       58.48   -114.06                                   
REMARK 500    LYS B 283       78.61   -119.58                                   
REMARK 500    PHE B 320       24.82   -141.10                                   
REMARK 500    ASP B 407      117.50   -162.24                                   
REMARK 500    ASP B 439      113.21   -162.03                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 500  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 462   OD1                                                    
REMARK 620 2 ASP A 463   OD1  83.7                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 500                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2REU   RELATED DB: PDB                                   
REMARK 900 C-TERMINAL DOMAIN OF SAU3AI                                          
DBREF  4PXG A    1   489  UNP    P16667   T2S3_STAAU       1    489             
DBREF  4PXG B    1   489  UNP    P16667   T2S3_STAAU       1    489             
SEQADV 4PXG MSE A  -19  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG GLY A  -18  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER A  -17  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER A  -16  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A  -15  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A  -14  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A  -13  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A  -12  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A  -11  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A  -10  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER A   -9  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER A   -8  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG GLY A   -7  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG LEU A   -6  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG VAL A   -5  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG PRO A   -4  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG ARG A   -3  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG GLY A   -2  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER A   -1  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS A    0  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG ALA A   64  UNP  P16667    GLU    64 ENGINEERED MUTATION            
SEQADV 4PXG MSE B  -19  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG GLY B  -18  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER B  -17  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER B  -16  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B  -15  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B  -14  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B  -13  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B  -12  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B  -11  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B  -10  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER B   -9  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER B   -8  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG GLY B   -7  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG LEU B   -6  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG VAL B   -5  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG PRO B   -4  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG ARG B   -3  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG GLY B   -2  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG SER B   -1  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG HIS B    0  UNP  P16667              EXPRESSION TAG                 
SEQADV 4PXG ALA B   64  UNP  P16667    GLU    64 ENGINEERED MUTATION            
SEQRES   1 A  509  MSE GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 A  509  LEU VAL PRO ARG GLY SER HIS MSE GLU SER TYR LEU THR          
SEQRES   3 A  509  LYS GLN ALA VAL HIS ASN ARG ALA LYS GLU ALA VAL GLY          
SEQRES   4 A  509  LYS SER VAL LEU GLU LEU ASN GLY GLY GLU SER ILE LYS          
SEQRES   5 A  509  GLN SER LYS SER SER VAL GLY ASP ALA PHE GLU ASN TRP          
SEQRES   6 A  509  PHE GLY LYS LYS LYS ASP SER ASP SER LYS PRO ASP MSE          
SEQRES   7 A  509  ALA GLU ALA GLY VAL ALA LEU LYS ALA THR PRO PHE LYS          
SEQRES   8 A  509  LYS LEU LYS ASN GLY LYS TYR SER SER LYS GLU ARG LEU          
SEQRES   9 A  509  VAL LEU ASN ILE ILE ASN TYR GLU LYS VAL ALA ASN GLU          
SEQRES  10 A  509  ASN PHE GLU THR SER SER PHE LEU SER LYS ASN ASN THR          
SEQRES  11 A  509  ILE GLU LEU ALA PHE TYR GLU TYR ILE LYS GLY THR PRO          
SEQRES  12 A  509  SER ASP ASN TRP ILE ILE LYS GLU ALA VAL LEU TYR GLU          
SEQRES  13 A  509  MSE HIS LYS ASN PRO ILE ASP TYR GLU ILE ILE LYS GLN          
SEQRES  14 A  509  ASP TRP GLU ILE ILE ASN GLN TYR ILE ASN GLU GLY LYS          
SEQRES  15 A  509  ALA HIS GLU LEU SER GLU GLY LEU THR SER TYR LEU ALA          
SEQRES  16 A  509  PRO CYS THR LYS GLY ALA ASN ALA SER SER LEU ARG ASN          
SEQRES  17 A  509  GLN PRO TYR SER ASP ILE LYS ALA LYS GLN ARG ALA PHE          
SEQRES  18 A  509  SER LEU LYS SER GLY TYR MSE THR SER ILE LEU ARG LYS          
SEQRES  19 A  509  TYR VAL LEU GLY ASP GLU LYS ILE ASP SER ILE VAL LYS          
SEQRES  20 A  509  ASP PRO PHE GLU ILE LYS GLU LYS SER ILE GLU ASP ILE          
SEQRES  21 A  509  VAL PHE GLU LYS PHE GLN PRO TYR ILE ASN TRP SER ILE          
SEQRES  22 A  509  ASP LYS LEU CYS GLU HIS PHE SER ILE ASN LYS GLY GLU          
SEQRES  23 A  509  LYS GLY LEU ASN TYR ARG ILE ALA SER ALA ILE LEU ASN          
SEQRES  24 A  509  LEU LYS GLY LYS THR THR LYS SER LYS PRO PHE PRO GLU          
SEQRES  25 A  509  VAL GLU GLU PHE GLU LYS SER SER ILE VAL VAL LYS THR          
SEQRES  26 A  509  VAL HIS PHE ASN LYS LYS ASN VAL ASN LYS GLU SER MSE          
SEQRES  27 A  509  SER PHE GLY ALA PHE LYS PHE GLU GLU LEU ALA ASN GLU          
SEQRES  28 A  509  GLU TRP GLU ASP SER GLU GLY TYR PRO SER ALA GLN TRP          
SEQRES  29 A  509  ARG ASN PHE LEU LEU GLU THR ARG PHE LEU PHE PHE VAL          
SEQRES  30 A  509  VAL LYS GLU ASP GLU ASP GLY VAL ASP ILE PHE LYS GLY          
SEQRES  31 A  509  ILE LYS PHE PHE SER MSE PRO GLU GLU ASP ILE ASN GLY          
SEQRES  32 A  509  PRO VAL LYS ARG MSE TRP ASP ASP THR VAL LYS LYS LEU          
SEQRES  33 A  509  LYS GLU GLY VAL THR LEU GLU ALA VAL PRO ASP LYS SER          
SEQRES  34 A  509  THR LYS ASP GLY TRP ARG ILE LYS ASN ASN PHE VAL ASP          
SEQRES  35 A  509  LYS SER ASP ASP LEU ILE CYS HIS VAL ARG PRO HIS THR          
SEQRES  36 A  509  ASN ASN ARG ASP TYR ARG GLY GLY SER ASN ALA ASP LYS          
SEQRES  37 A  509  LEU PRO LYS LYS ILE ASN TRP ILE ASN ARG PRO ASP SER          
SEQRES  38 A  509  ASP ASP TYR SER ASP GLU TRP MSE THR LYS GLN SER PHE          
SEQRES  39 A  509  TRP ILE ASN ASN ASP TYR ILE LYS LYS GLN VAL GLU ASP          
SEQRES  40 A  509  LEU LEU                                                      
SEQRES   1 B  509  MSE GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 B  509  LEU VAL PRO ARG GLY SER HIS MSE GLU SER TYR LEU THR          
SEQRES   3 B  509  LYS GLN ALA VAL HIS ASN ARG ALA LYS GLU ALA VAL GLY          
SEQRES   4 B  509  LYS SER VAL LEU GLU LEU ASN GLY GLY GLU SER ILE LYS          
SEQRES   5 B  509  GLN SER LYS SER SER VAL GLY ASP ALA PHE GLU ASN TRP          
SEQRES   6 B  509  PHE GLY LYS LYS LYS ASP SER ASP SER LYS PRO ASP MSE          
SEQRES   7 B  509  ALA GLU ALA GLY VAL ALA LEU LYS ALA THR PRO PHE LYS          
SEQRES   8 B  509  LYS LEU LYS ASN GLY LYS TYR SER SER LYS GLU ARG LEU          
SEQRES   9 B  509  VAL LEU ASN ILE ILE ASN TYR GLU LYS VAL ALA ASN GLU          
SEQRES  10 B  509  ASN PHE GLU THR SER SER PHE LEU SER LYS ASN ASN THR          
SEQRES  11 B  509  ILE GLU LEU ALA PHE TYR GLU TYR ILE LYS GLY THR PRO          
SEQRES  12 B  509  SER ASP ASN TRP ILE ILE LYS GLU ALA VAL LEU TYR GLU          
SEQRES  13 B  509  MSE HIS LYS ASN PRO ILE ASP TYR GLU ILE ILE LYS GLN          
SEQRES  14 B  509  ASP TRP GLU ILE ILE ASN GLN TYR ILE ASN GLU GLY LYS          
SEQRES  15 B  509  ALA HIS GLU LEU SER GLU GLY LEU THR SER TYR LEU ALA          
SEQRES  16 B  509  PRO CYS THR LYS GLY ALA ASN ALA SER SER LEU ARG ASN          
SEQRES  17 B  509  GLN PRO TYR SER ASP ILE LYS ALA LYS GLN ARG ALA PHE          
SEQRES  18 B  509  SER LEU LYS SER GLY TYR MSE THR SER ILE LEU ARG LYS          
SEQRES  19 B  509  TYR VAL LEU GLY ASP GLU LYS ILE ASP SER ILE VAL LYS          
SEQRES  20 B  509  ASP PRO PHE GLU ILE LYS GLU LYS SER ILE GLU ASP ILE          
SEQRES  21 B  509  VAL PHE GLU LYS PHE GLN PRO TYR ILE ASN TRP SER ILE          
SEQRES  22 B  509  ASP LYS LEU CYS GLU HIS PHE SER ILE ASN LYS GLY GLU          
SEQRES  23 B  509  LYS GLY LEU ASN TYR ARG ILE ALA SER ALA ILE LEU ASN          
SEQRES  24 B  509  LEU LYS GLY LYS THR THR LYS SER LYS PRO PHE PRO GLU          
SEQRES  25 B  509  VAL GLU GLU PHE GLU LYS SER SER ILE VAL VAL LYS THR          
SEQRES  26 B  509  VAL HIS PHE ASN LYS LYS ASN VAL ASN LYS GLU SER MSE          
SEQRES  27 B  509  SER PHE GLY ALA PHE LYS PHE GLU GLU LEU ALA ASN GLU          
SEQRES  28 B  509  GLU TRP GLU ASP SER GLU GLY TYR PRO SER ALA GLN TRP          
SEQRES  29 B  509  ARG ASN PHE LEU LEU GLU THR ARG PHE LEU PHE PHE VAL          
SEQRES  30 B  509  VAL LYS GLU ASP GLU ASP GLY VAL ASP ILE PHE LYS GLY          
SEQRES  31 B  509  ILE LYS PHE PHE SER MSE PRO GLU GLU ASP ILE ASN GLY          
SEQRES  32 B  509  PRO VAL LYS ARG MSE TRP ASP ASP THR VAL LYS LYS LEU          
SEQRES  33 B  509  LYS GLU GLY VAL THR LEU GLU ALA VAL PRO ASP LYS SER          
SEQRES  34 B  509  THR LYS ASP GLY TRP ARG ILE LYS ASN ASN PHE VAL ASP          
SEQRES  35 B  509  LYS SER ASP ASP LEU ILE CYS HIS VAL ARG PRO HIS THR          
SEQRES  36 B  509  ASN ASN ARG ASP TYR ARG GLY GLY SER ASN ALA ASP LYS          
SEQRES  37 B  509  LEU PRO LYS LYS ILE ASN TRP ILE ASN ARG PRO ASP SER          
SEQRES  38 B  509  ASP ASP TYR SER ASP GLU TRP MSE THR LYS GLN SER PHE          
SEQRES  39 B  509  TRP ILE ASN ASN ASP TYR ILE LYS LYS GLN VAL GLU ASP          
SEQRES  40 B  509  LEU LEU                                                      
MODRES 4PXG MSE A  137  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE A  208  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE A  318  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE A  376  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE A  388  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE A  469  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE B  137  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE B  208  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE B  318  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE B  376  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE B  388  MET  SELENOMETHIONINE                                   
MODRES 4PXG MSE B  469  MET  SELENOMETHIONINE                                   
HET    MSE  A 137       8                                                       
HET    MSE  A 208       8                                                       
HET    MSE  A 318       8                                                       
HET    MSE  A 376       8                                                       
HET    MSE  A 388       8                                                       
HET    MSE  A 469       8                                                       
HET    MSE  B 137       8                                                       
HET    MSE  B 208       8                                                       
HET    MSE  B 318       8                                                       
HET    MSE  B 376       8                                                       
HET    MSE  B 388       8                                                       
HET    MSE  B 469       8                                                       
HET     CA  A 500       1                                                       
HETNAM     MSE SELENOMETHIONINE                                                 
HETNAM      CA CALCIUM ION                                                      
FORMUL   1  MSE    12(C5 H11 N O2 SE)                                           
FORMUL   3   CA    CA 2+                                                        
FORMUL   4  HOH   *31(H2 O)                                                     
HELIX    1   1 THR A    6  VAL A   18  1                                  13    
HELIX    2   2 SER A   21  GLY A   27  1                                   7    
HELIX    3   3 SER A   37  TRP A   45  1                                   9    
HELIX    4   4 ASN A   90  ASN A   96  1                                   7    
HELIX    5   5 SER A  102  ASN A  109  1                                   8    
HELIX    6   6 PRO A  123  TRP A  127  5                                   5    
HELIX    7   7 ASN A  140  GLU A  160  1                                  21    
HELIX    8   8 LYS A  162  LEU A  166  5                                   5    
HELIX    9   9 SER A  167  THR A  171  5                                   5    
HELIX   10  10 ASN A  182  SER A  184  5                                   3    
HELIX   11  11 LYS A  204  VAL A  216  1                                  13    
HELIX   12  12 ASP A  228  LYS A  233  5                                   6    
HELIX   13  13 SER A  236  GLN A  246  1                                  11    
HELIX   14  14 PRO A  247  ILE A  249  5                                   3    
HELIX   15  15 SER A  252  SER A  261  1                                  10    
HELIX   16  16 GLY A  268  LEU A  278  1                                  11    
HELIX   17  17 VAL A  293  SER A  300  1                                   8    
HELIX   18  18 LYS A  324  ASN A  330  1                                   7    
HELIX   19  19 ALA A  342  THR A  351  1                                  10    
HELIX   20  20 PRO A  377  GLY A  383  1                                   7    
HELIX   21  21 GLY A  383  GLY A  399  1                                  17    
HELIX   22  22 ASP A  422  ASP A  426  5                                   5    
HELIX   23  23 ASN A  477  GLU A  486  1                                  10    
HELIX   24  24 ASP A  487  LEU A  489  5                                   3    
HELIX   25  25 LYS B    7  VAL B   18  1                                  12    
HELIX   26  26 SER B   21  GLY B   27  1                                   7    
HELIX   27  27 SER B   37  TRP B   45  1                                   9    
HELIX   28  28 ASN B   90  ASN B   96  1                                   7    
HELIX   29  29 SER B  102  ASN B  109  1                                   8    
HELIX   30  30 PRO B  123  TRP B  127  5                                   5    
HELIX   31  31 ASN B  140  GLU B  160  1                                  21    
HELIX   32  32 LYS B  162  LEU B  166  5                                   5    
HELIX   33  33 SER B  167  THR B  171  5                                   5    
HELIX   34  34 ASN B  182  SER B  184  5                                   3    
HELIX   35  35 LYS B  204  VAL B  216  1                                  13    
HELIX   36  36 ASP B  228  LYS B  233  5                                   6    
HELIX   37  37 SER B  236  GLN B  246  1                                  11    
HELIX   38  38 PRO B  247  ILE B  249  5                                   3    
HELIX   39  39 SER B  252  SER B  261  1                                  10    
HELIX   40  40 GLY B  268  LEU B  278  1                                  11    
HELIX   41  41 VAL B  293  SER B  300  1                                   8    
HELIX   42  42 LYS B  324  ASN B  330  1                                   7    
HELIX   43  43 ALA B  342  THR B  351  1                                  10    
HELIX   44  44 PRO B  377  GLY B  383  1                                   7    
HELIX   45  45 GLY B  383  GLY B  399  1                                  17    
HELIX   46  46 ASP B  422  ASP B  426  5                                   5    
HELIX   47  47 ASN B  477  GLU B  486  1                                  10    
HELIX   48  48 ASP B  487  LEU B  489  5                                   3    
SHEET    1   A 4 TYR A  78  SER A  80  0                                        
SHEET    2   A 4 ALA A  64  LYS A  72 -1  N  LYS A  71   O  SER A  79           
SHEET    3   A 4 THR A 110  GLU A 117  1  O  GLU A 112   N  ALA A  64           
SHEET    4   A 4 ILE A 129  GLU A 136 -1  O  TYR A 135   N  ILE A 111           
SHEET    1   B 3 LEU A  84  ILE A  88  0                                        
SHEET    2   B 3 ARG A 199  LEU A 203 -1  O  LEU A 203   N  LEU A  84           
SHEET    3   B 3 LEU A 174  THR A 178 -1  N  ALA A 175   O  SER A 202           
SHEET    1   C 2 LEU A 186  GLN A 189  0                                        
SHEET    2   C 2 SER A 192  LYS A 197 -1  O  ALA A 196   N  ARG A 187           
SHEET    1   D 3 ILE A 301  PHE A 308  0                                        
SHEET    2   D 3 ARG A 352  GLU A 360  1  O  VAL A 358   N  PHE A 308           
SHEET    3   D 3 ASP A 366  PHE A 374 -1  O  GLY A 370   N  VAL A 357           
SHEET    1   E 3 MSE A 318  SER A 319  0                                        
SHEET    2   E 3 GLN A 472  ILE A 476 -1  O  ILE A 476   N  MSE A 318           
SHEET    3   E 3 HIS A 430  PRO A 433 -1  N  HIS A 430   O  TRP A 475           
SHEET    1   F 3 TRP A 414  ASN A 418  0                                        
SHEET    2   F 3 THR A 401  PRO A 406 -1  N  GLU A 403   O  LYS A 417           
SHEET    3   F 3 ASN A 454  ILE A 456  1  O  ILE A 456   N  ALA A 404           
SHEET    1   G 2 ALA A 446  LYS A 448  0                                        
SHEET    2   G 2 TRP A 468  THR A 470 -1  O  MSE A 469   N  ASP A 447           
SHEET    1   H 4 TYR B  78  SER B  80  0                                        
SHEET    2   H 4 ALA B  64  LYS B  72 -1  N  LYS B  71   O  SER B  79           
SHEET    3   H 4 THR B 110  TYR B 118  1  O  GLU B 112   N  ALA B  64           
SHEET    4   H 4 ILE B 129  GLU B 136 -1  O  VAL B 133   N  LEU B 113           
SHEET    1   I 3 LEU B  84  ILE B  88  0                                        
SHEET    2   I 3 ARG B 199  LEU B 203 -1  O  PHE B 201   N  LEU B  86           
SHEET    3   I 3 LEU B 174  THR B 178 -1  N  ALA B 175   O  SER B 202           
SHEET    1   J 2 LEU B 186  GLN B 189  0                                        
SHEET    2   J 2 SER B 192  LYS B 197 -1  O  ALA B 196   N  ARG B 187           
SHEET    1   K 3 ILE B 301  PHE B 308  0                                        
SHEET    2   K 3 ARG B 352  GLU B 360  1  O  VAL B 358   N  PHE B 308           
SHEET    3   K 3 ASP B 366  PHE B 374 -1  O  LYS B 372   N  PHE B 355           
SHEET    1   L 3 MSE B 318  ALA B 322  0                                        
SHEET    2   L 3 GLN B 472  ILE B 476 -1  O  ILE B 476   N  MSE B 318           
SHEET    3   L 3 HIS B 430  PRO B 433 -1  N  ARG B 432   O  SER B 473           
SHEET    1   M 3 TRP B 414  ASN B 418  0                                        
SHEET    2   M 3 THR B 401  PRO B 406 -1  N  GLU B 403   O  LYS B 417           
SHEET    3   M 3 ASN B 454  ILE B 456  1  O  ILE B 456   N  ALA B 404           
SHEET    1   N 2 ALA B 446  LYS B 448  0                                        
SHEET    2   N 2 TRP B 468  THR B 470 -1  O  MSE B 469   N  ASP B 447           
LINK         C   GLU A 136                 N   MSE A 137     1555   1555  1.32  
LINK         C   MSE A 137                 N   HIS A 138     1555   1555  1.34  
LINK         C   TYR A 207                 N   MSE A 208     1555   1555  1.31  
LINK         C   MSE A 208                 N   THR A 209     1555   1555  1.33  
LINK         C   SER A 317                 N   MSE A 318     1555   1555  1.33  
LINK         C   MSE A 318                 N   SER A 319     1555   1555  1.35  
LINK         C   SER A 375                 N   MSE A 376     1555   1555  1.32  
LINK         C   MSE A 376                 N   PRO A 377     1555   1555  1.34  
LINK         C   ARG A 387                 N   MSE A 388     1555   1555  1.33  
LINK         C   MSE A 388                 N   TRP A 389     1555   1555  1.32  
LINK         C   TRP A 468                 N   MSE A 469     1555   1555  1.33  
LINK         C   MSE A 469                 N   THR A 470     1555   1555  1.30  
LINK         C   GLU B 136                 N   MSE B 137     1555   1555  1.32  
LINK         C   MSE B 137                 N   HIS B 138     1555   1555  1.33  
LINK         C   TYR B 207                 N   MSE B 208     1555   1555  1.32  
LINK         C   MSE B 208                 N   THR B 209     1555   1555  1.32  
LINK         C   SER B 317                 N   MSE B 318     1555   1555  1.32  
LINK         C   MSE B 318                 N   SER B 319     1555   1555  1.34  
LINK         C   SER B 375                 N   MSE B 376     1555   1555  1.31  
LINK         C   MSE B 376                 N   PRO B 377     1555   1555  1.32  
LINK         C   ARG B 387                 N   MSE B 388     1555   1555  1.33  
LINK         C   MSE B 388                 N   TRP B 389     1555   1555  1.31  
LINK         C   TRP B 468                 N   MSE B 469     1555   1555  1.34  
LINK         C   MSE B 469                 N   THR B 470     1555   1555  1.32  
LINK         OD1 ASP A 462                CA    CA A 500     1555   1555  2.49  
LINK         OD1 ASP A 463                CA    CA A 500     1555   1555  2.67  
CISPEP   1 GLY A   27    GLY A   28          0        -5.67                     
CISPEP   2 GLY B   27    GLY B   28          0        -4.42                     
SITE     1 AC1  2 ASP A 462  ASP A 463                                          
CRYST1   69.648  197.673  191.145  90.00  90.00  90.00 C 2 2 21     16          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.014358  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.005059  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005232        0.00000