HEADER    HYDROLASE                               20-MAR-01   1I9S              
TITLE     CRYSTAL STRUCTURE OF THE RNA TRIPHOSPHATASE DOMAIN OF MOUSE MRNA      
TITLE    2 CAPPING ENZYME                                                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MRNA CAPPING ENZYME;                                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: TPASE DOMAIN (RESIDUES 1-210);                             
COMPND   5 SYNONYM: MCE1;                                                       
COMPND   6 EC: 3.1.3.33;                                                        
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   3 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE   4 ORGANISM_TAXID: 10090;                                               
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET16B                                    
KEYWDS    RNA TRIPHOSPHATASE DOMAIN, MRNA CAPPING ENZYME, HYDROLASE             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.CHANGELA,C.K.HO,A.MARTINS,S.SHUMAN,A.MONDRAGON                      
REVDAT   4   07-FEB-24 1I9S    1       REMARK LINK                              
REVDAT   3   13-JUL-11 1I9S    1       VERSN                                    
REVDAT   2   24-FEB-09 1I9S    1       VERSN                                    
REVDAT   1   23-MAY-01 1I9S    0                                                
JRNL        AUTH   A.CHANGELA,C.K.HO,A.MARTINS,S.SHUMAN,A.MONDRAGON             
JRNL        TITL   STRUCTURE AND MECHANISM OF THE RNA TRIPHOSPHATASE COMPONENT  
JRNL        TITL 2 OF MAMMALIAN MRNA CAPPING ENZYME.                            
JRNL        REF    EMBO J.                       V.  20  2575 2001              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   11350947                                                     
JRNL        DOI    10.1093/EMBOJ/20.10.2575                                     
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.65 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 27.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 26497                          
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) : 0.196                           
REMARK   3   R VALUE            (WORKING SET) : 0.194                           
REMARK   3   FREE R VALUE                     : 0.225                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1334                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1536                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 17                                      
REMARK   3   SOLVENT ATOMS            : 216                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.20                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : NULL  ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1I9S COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-MAR-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000013083.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-APR-00                          
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               : SSRL                               
REMARK 200  BEAMLINE                       : BL9-1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 26506                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.650                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 27.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY                : 5.400                              
REMARK 200  R MERGE                    (I) : 0.09300                            
REMARK 200  R SYM                      (I) : 8.40000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.2000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.65                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.69                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.28200                            
REMARK 200  R SYM FOR SHELL            (I) : 25.1000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: MLPHARE                                               
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.80                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 15% ISOPROPANOL, 50MM SODIUM             
REMARK 280  CACODYLATE (PH 6.5), 25MM MAGNESIUM CHLORIDE, 25MM AMMONIUM         
REMARK 280  SULFATE , VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 283K           
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       35.90900            
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       35.90900            
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       31.11400            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       49.42800            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       31.11400            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       49.42800            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       35.90900            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       31.11400            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       49.42800            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       35.90900            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       31.11400            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       49.42800            
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, 3                                                 
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2340 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18730 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -48.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000       62.22800            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       35.90900            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       98.85600            
REMARK 350   BIOMT3   2  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     TYR A     3                                                      
REMARK 465     ASN A     4                                                      
REMARK 465     ASN A   114                                                      
REMARK 465     GLU A   115                                                      
REMARK 465     ARG A   116                                                      
REMARK 465     SER A   117                                                      
REMARK 465     PRO A   118                                                      
REMARK 465     GLU A   199                                                      
REMARK 465     GLU A   200                                                      
REMARK 465     ASP A   201                                                      
REMARK 465     GLU A   202                                                      
REMARK 465     ASP A   203                                                      
REMARK 465     GLU A   204                                                      
REMARK 465     ASP A   205                                                      
REMARK 465     GLY A   206                                                      
REMARK 465     LYS A   207                                                      
REMARK 465     LYS A   208                                                      
REMARK 465     ASP A   209                                                      
REMARK 465     SER A   210                                                      
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   9   CD  -  NE  -  CZ  ANGL. DEV. =  10.2 DEGREES          
REMARK 500    ARG A   9   NE  -  CZ  -  NH1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ARG A   9   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.5 DEGREES          
REMARK 500    CYS A  97   CA  -  CB  -  SG  ANGL. DEV. =   7.7 DEGREES          
REMARK 500    GLU A 101   OE1 -  CD  -  OE2 ANGL. DEV. =  -8.9 DEGREES          
REMARK 500    ARG A 132   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500    ARG A 132   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.1 DEGREES          
REMARK 500    TYR A 165   CB  -  CG  -  CD1 ANGL. DEV. =   3.8 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    ARG A  23      -38.65   -134.48                                   
REMARK 500    CYS A 126     -150.95   -116.50                                   
REMARK 500    PHE A 130      -59.96   -121.32                                   
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                             CAC A 400  AS                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 193   SG                                                     
REMARK 620 2 CAC A 400   C1  109.3                                              
REMARK 620 3 CAC A 400   C2   95.3  98.1                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 500  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A 812   O                                                      
REMARK 620 2 HOH A 812   O    76.7                                              
REMARK 620 3 HOH A 813   O   175.2 104.5                                        
REMARK 620 4 HOH A 813   O    80.6 156.8  98.5                                  
REMARK 620 5 HOH A 814   O    90.5  92.9  94.0  82.4                            
REMARK 620 6 HOH A 814   O    81.9 100.4  93.4  81.0 162.6                      
REMARK 620 7 HOH A 815   O    87.2  86.7  88.3  97.1 177.7  16.3                
REMARK 620 8 HOH A 815   O    75.8  93.9 108.7  75.6  15.5 149.8 162.3          
REMARK 620 9 HOH A 816   O    90.8 167.2  87.8  12.8  89.9  74.7  89.9  85.5    
REMARK 620 N                    1     2     3     4     5     6     7     8     
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 300                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CAC A 400                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 500                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IPA A 600                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IPA A 601                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1I9T   RELATED DB: PDB                                   
REMARK 900 OXIDATION OF CYS126 TO CYSTEINE SULFENIC ACID                        
DBREF  1I9S A    1   210  UNP    O55236   MCE1_MOUSE       1    210             
SEQRES   1 A  210  MET ALA TYR ASN LYS ILE PRO PRO ARG TRP LEU ASN CYS          
SEQRES   2 A  210  PRO ARG ARG GLY GLN PRO VAL ALA GLY ARG PHE LEU PRO          
SEQRES   3 A  210  LEU LYS THR MET LEU GLY PRO ARG TYR ASP SER GLN VAL          
SEQRES   4 A  210  ALA GLU GLU ASN ARG PHE HIS PRO SER MET LEU SER ASN          
SEQRES   5 A  210  TYR LEU LYS SER LEU LYS VAL LYS MET SER LEU LEU VAL          
SEQRES   6 A  210  ASP LEU THR ASN THR SER ARG PHE TYR ASP ARG ASN ASP          
SEQRES   7 A  210  ILE GLU LYS GLU GLY ILE LYS TYR ILE LYS LEU GLN CYS          
SEQRES   8 A  210  LYS GLY HIS GLY GLU CYS PRO THR THR GLU ASN THR GLU          
SEQRES   9 A  210  THR PHE ILE ARG LEU CYS GLU ARG PHE ASN GLU ARG SER          
SEQRES  10 A  210  PRO PRO GLU LEU ILE GLY VAL HIS CYS THR HIS GLY PHE          
SEQRES  11 A  210  ASN ARG THR GLY PHE LEU ILE CYS ALA PHE LEU VAL GLU          
SEQRES  12 A  210  LYS MET ASP TRP SER ILE GLU ALA ALA VAL ALA THR PHE          
SEQRES  13 A  210  ALA GLN ALA ARG PRO PRO GLY ILE TYR LYS GLY ASP TYR          
SEQRES  14 A  210  LEU LYS GLU LEU PHE ARG ARG TYR GLY ASP ILE GLU GLU          
SEQRES  15 A  210  ALA PRO PRO PRO PRO VAL LEU PRO ASP TRP CYS PHE GLU          
SEQRES  16 A  210  ASP GLU ASP GLU GLU ASP GLU ASP GLU ASP GLY LYS LYS          
SEQRES  17 A  210  ASP SER                                                      
HET    SO4  A 300       5                                                       
HET    CAC  A 400       3                                                       
HET     MG  A 500       1                                                       
HET    IPA  A 600       4                                                       
HET    IPA  A 601       4                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     CAC CACODYLATE ION                                                   
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     IPA ISOPROPYL ALCOHOL                                                
HETSYN     CAC DIMETHYLARSINATE                                                 
HETSYN     IPA 2-PROPANOL                                                       
FORMUL   2  SO4    O4 S 2-                                                      
FORMUL   3  CAC    C2 H6 AS O2 1-                                               
FORMUL   4   MG    MG 2+                                                        
FORMUL   5  IPA    2(C3 H8 O)                                                   
FORMUL   7  HOH   *216(H2 O)                                                    
HELIX    1   1 GLY A   32  ASP A   36  5                                   5    
HELIX    2   2 ALA A   40  ARG A   44  5                                   5    
HELIX    3   3 HIS A   46  LEU A   57  1                                  12    
HELIX    4   4 ARG A   76  LYS A   81  1                                   6    
HELIX    5   5 THR A   99  GLU A  111  1                                  13    
HELIX    6   6 PHE A  130  ASP A  146  1                                  17    
HELIX    7   7 SER A  148  ARG A  160  1                                  13    
HELIX    8   8 LYS A  166  GLY A  178  1                                  13    
HELIX    9   9 ASP A  179  ALA A  183  5                                   5    
HELIX   10  10 PRO A  190  GLU A  195  5                                   6    
SHEET    1   A 4 PHE A  24  LEU A  27  0                                        
SHEET    2   A 4 LEU A 121  HIS A 125  1  O  ILE A 122   N  LEU A  25           
SHEET    3   A 4 MET A  61  ASP A  66  1  N  SER A  62   O  LEU A 121           
SHEET    4   A 4 LYS A  85  LYS A  88  1  O  LYS A  85   N  LEU A  64           
LINK         SG  CYS A 193                AS   CAC A 400     1555   1555  2.41  
LINK        MG    MG A 500                 O   HOH A 812     1555   1555  2.01  
LINK        MG    MG A 500                 O   HOH A 812     1555   3655  1.65  
LINK        MG    MG A 500                 O   HOH A 813     1555   1555  2.03  
LINK        MG    MG A 500                 O   HOH A 813     1555   3655  2.47  
LINK        MG    MG A 500                 O   HOH A 814     1555   1555  2.00  
LINK        MG    MG A 500                 O   HOH A 814     1555   3655  2.04  
LINK        MG    MG A 500                 O   HOH A 815     1555   1555  2.06  
LINK        MG    MG A 500                 O   HOH A 815     1555   3655  2.16  
LINK        MG    MG A 500                 O   HOH A 816     1555   1555  2.05  
LINK        MG    MG A 500                 O   HOH A 816     1555   3655  1.70  
LINK        MG    MG A 500                 O   HOH A 817     1555   1555  2.01  
LINK        MG    MG A 500                 O   HOH A 817     1555   3655  2.46  
CISPEP   1 PRO A  161    PRO A  162          0         4.42                     
SITE     1 AC1 11 GLY A  32  PRO A  33  ARG A  34  HOH A 615                    
SITE     2 AC1 11 HOH A 656  HOH A 700  HOH A 798  HOH A 812                    
SITE     3 AC1 11 HOH A 814  HOH A 815  HOH A 817                               
SITE     1 AC2  6 ARG A   9  PHE A 130  TYR A 165  LEU A 189                    
SITE     2 AC2  6 TRP A 192  CYS A 193                                          
SITE     1 AC3  6 HOH A 812  HOH A 813  HOH A 814  HOH A 815                    
SITE     2 AC3  6 HOH A 816  HOH A 817                                          
SITE     1 AC4  4 ARG A  15  ARG A  16  IPA A 601  HOH A 769                    
SITE     1 AC5  3 ARG A  16  TYR A  53  IPA A 600                               
CRYST1   62.228   98.856   71.818  90.00  90.00  90.00 C 2 2 21      8          
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      0.016070  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010116  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013924        0.00000