HEADER    TOXIN                                   07-JUN-23   8T3I              
TITLE     CRYSTAL STRUCTURE OF MUTANT EXFOLIATIVE TOXIN C (EXHC) FROM           
TITLE    2 MAMMALIICOCCUS SCIURI                                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: EXFOLIATIVE TOXIN C;                                       
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: SERINE PROTEASE;                                            
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MAMMALIICOCCUS SCIURI;                          
SOURCE   3 ORGANISM_TAXID: 1296;                                                
SOURCE   4 GENE: EXHC;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    PEPTIDASE, NECROTIC ACTIVITY, TOXIN                                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.GISMENE,F.A.CALIL,J.E.HERNANDEZ GONZALEZ,A.F.ZIEM NASCIMENTO,       
AUTHOR   2 A.R.N.SANTISTEBAN,R.K.ARNI,R.BARROS MARIUTTI                         
REVDAT   3   14-FEB-24 8T3I    1       JRNL                                     
REVDAT   2   22-NOV-23 8T3I    1       AUTHOR                                   
REVDAT   1   08-NOV-23 8T3I    0                                                
JRNL        AUTH   C.GISMENE,J.E.H.GONZALEZ,M.DE FREITAS CALMON,                
JRNL        AUTH 2 A.F.Z.NASCIMENTO,A.R.N.SANTISTEBAN,F.A.CALIL,A.D.T.DA SILVA, 
JRNL        AUTH 3 P.RAHAL,R.M.GOES,R.K.ARNI,R.B.MARIUTTI                       
JRNL        TITL   NECROTIC ACTIVITY OF EXHC FROM MAMMALIICOCCUS SCIURI IS      
JRNL        TITL 2 MEDIATED BY SPECIFIC AMINO ACID RESIDUES.                    
JRNL        REF    INT.J.BIOL.MACROMOL.          V. 254 27741 2024              
JRNL        REFN                   ISSN 0141-8130                               
JRNL        PMID   38287568                                                     
JRNL        DOI    10.1016/J.IJBIOMAC.2023.127741                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.57 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0411                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.57                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 39.55                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 63061                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : FREE R-VALUE                    
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.181                           
REMARK   3   FREE R VALUE                     : 0.223                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3153                            
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) : 1.57                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.61                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 4394                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.10                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3400                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 231                          
REMARK   3   BIN FREE R VALUE                    : 0.3560                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3710                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 283                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.02                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.51200                                             
REMARK   3    B22 (A**2) : 1.16700                                              
REMARK   3    B33 (A**2) : 0.30300                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.23200                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.087         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.092         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.076         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.248         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.971                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.955                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3787 ; 0.015 ; 0.012       
REMARK   3   BOND LENGTHS OTHERS               (A):  3506 ; 0.001 ; 0.016       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5120 ; 2.152 ; 1.641       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  8116 ; 0.699 ; 1.583       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   478 ; 7.158 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):     6 ; 6.904 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   630 ;14.362 ;10.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   550 ; 0.107 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4414 ; 0.014 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   846 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   706 ; 0.213 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):    60 ; 0.137 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1906 ; 0.187 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   191 ; 0.194 ; 0.200       
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):  1918 ; 3.336 ; 2.559       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1918 ; 3.336 ; 2.558       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2394 ; 4.350 ; 4.589       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  2395 ; 4.351 ; 4.591       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1869 ; 5.124 ; 3.066       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  1870 ; 5.123 ; 3.068       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2726 ; 7.415 ; 5.341       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  2727 ; 7.413 ; 5.343       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
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   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
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 BULK SOLVENT                                    
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 THEIR        
REMARK   3  RIDING POSITIONS                                                    
REMARK   4                                                                      
REMARK   4 8T3I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-JUN-23.                  
REMARK 100 THE DEPOSITION ID IS D_1000275065.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 14-DEC-20                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : LNLS SIRIUS                        
REMARK 200  BEAMLINE                       : MANACA                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.323630                           
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL SI(111)             
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 2M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 63061                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.570                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 39.553                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 6.500                              
REMARK 200  R MERGE                    (I) : 0.06174                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 15.1700                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.57                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.63                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.06174                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.140                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 38.97                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.02                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M MGCL2; 0.1 M TRIS-HCL PH 8.5 AND   
REMARK 280  30% W/V PEG 4000 WITH THE ADDITION OF 0.1 M SARCOSINE, VAPOR        
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 291K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       35.69900            
REMARK 290   SMTRY3   2  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 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 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     MET A     0                                                      
REMARK 465     ASP A     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     GLU A     3                                                      
REMARK 465     GLY A   243                                                      
REMARK 465     GLY A   244                                                      
REMARK 465     GLU A   245                                                      
REMARK 465     ASN A   246                                                      
REMARK 465     LEU A   247                                                      
REMARK 465     TYR A   248                                                      
REMARK 465     PHE A   249                                                      
REMARK 465     GLN A   250                                                      
REMARK 465     SER A   251                                                      
REMARK 465     HIS A   252                                                      
REMARK 465     HIS A   253                                                      
REMARK 465     HIS A   254                                                      
REMARK 465     HIS A   255                                                      
REMARK 465     HIS A   256                                                      
REMARK 465     HIS A   257                                                      
REMARK 465     MET B     0                                                      
REMARK 465     ASP B     1                                                      
REMARK 465     GLY B   243                                                      
REMARK 465     GLY B   244                                                      
REMARK 465     GLU B   245                                                      
REMARK 465     ASN B   246                                                      
REMARK 465     LEU B   247                                                      
REMARK 465     TYR B   248                                                      
REMARK 465     PHE B   249                                                      
REMARK 465     GLN B   250                                                      
REMARK 465     SER B   251                                                      
REMARK 465     HIS B   252                                                      
REMARK 465     HIS B   253                                                      
REMARK 465     HIS B   254                                                      
REMARK 465     HIS B   255                                                      
REMARK 465     HIS B   256                                                      
REMARK 465     HIS B   257                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     LYS A  242   CG   CD   CE   NZ                                   
REMARK 480     LYS B  242   CG   CD   CE   NZ                                   
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH A   302     O    HOH B   418              1.98            
REMARK 500   O    HOH A   374     O    HOH B   426              1.98            
REMARK 500   O    HOH A   429     O    HOH B   404              2.12            
REMARK 500   OE1  GLN A   239     O    HOH A   301              2.15            
REMARK 500   O    HOH A   317     O    HOH A   337              2.15            
REMARK 500   O    HOH A   415     O    HOH B   431              2.15            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    LYS A 242   CB    LYS A 242   CG     -0.301                       
REMARK 500    GLU B   3   CD    GLU B   3   OE1     0.078                       
REMARK 500    GLU B  93   CD    GLU B  93   OE1     0.097                       
REMARK 500    GLU B 131   CD    GLU B 131   OE1     0.072                       
REMARK 500    GLU B 222   CD    GLU B 222   OE2    -0.077                       
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    GLU A  53      -50.17   -136.35                                   
REMARK 500    SER A 195      123.10    -35.45                                   
REMARK 500    ILE A 217      -58.21     77.68                                   
REMARK 500    GLU B  53      -36.95   -142.33                                   
REMARK 500    ASN B 129     -172.22    -66.86                                   
REMARK 500    ILE B 217      -56.52     72.43                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  8T3I A    1   242  UNP    F6M8N2   F6M8N2_MAMSC    37    278             
DBREF  8T3I B    1   242  UNP    F6M8N2   F6M8N2_MAMSC    37    278             
SEQADV 8T3I MET A    0  UNP  F6M8N2              INITIATING METHIONINE          
SEQADV 8T3I ALA A   47  UNP  F6M8N2    ARG    83 ENGINEERED MUTATION            
SEQADV 8T3I PHE A   49  UNP  F6M8N2    ASN    85 ENGINEERED MUTATION            
SEQADV 8T3I LYS A   51  UNP  F6M8N2    GLN    87 ENGINEERED MUTATION            
SEQADV 8T3I ALA A   89  UNP  F6M8N2    ARG   125 ENGINEERED MUTATION            
SEQADV 8T3I GLY A  243  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I GLY A  244  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I GLU A  245  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I ASN A  246  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I LEU A  247  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I TYR A  248  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I PHE A  249  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I GLN A  250  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I SER A  251  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS A  252  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS A  253  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS A  254  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS A  255  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS A  256  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS A  257  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I MET B    0  UNP  F6M8N2              INITIATING METHIONINE          
SEQADV 8T3I ALA B   47  UNP  F6M8N2    ARG    83 ENGINEERED MUTATION            
SEQADV 8T3I PHE B   49  UNP  F6M8N2    ASN    85 ENGINEERED MUTATION            
SEQADV 8T3I LYS B   51  UNP  F6M8N2    GLN    87 ENGINEERED MUTATION            
SEQADV 8T3I ALA B   89  UNP  F6M8N2    ARG   125 ENGINEERED MUTATION            
SEQADV 8T3I GLY B  243  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I GLY B  244  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I GLU B  245  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I ASN B  246  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I LEU B  247  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I TYR B  248  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I PHE B  249  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I GLN B  250  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I SER B  251  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS B  252  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS B  253  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS B  254  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS B  255  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS B  256  UNP  F6M8N2              EXPRESSION TAG                 
SEQADV 8T3I HIS B  257  UNP  F6M8N2              EXPRESSION TAG                 
SEQRES   1 A  258  MET ASP GLU GLU SER ASP LEU LYS ASP HIS ARG ASP LYS          
SEQRES   2 A  258  TRP ASN LYS TYR TYR GLY VAL SER PRO ASP GLN LEU SER          
SEQRES   3 A  258  LYS ASP LEU PHE ASP LYS VAL SER PRO GLU GLN ILE LYS          
SEQRES   4 A  258  ASN SER PRO TYR GLN SER VAL GLY ALA LEU PHE VAL LYS          
SEQRES   5 A  258  GLY GLU ALA VAL ALA THR GLY VAL PHE ILE GLY LYS ASN          
SEQRES   6 A  258  THR VAL VAL THR ASN HIS HIS ILE ALA LYS GLU ALA LYS          
SEQRES   7 A  258  ASN ASN PRO SER LYS ILE ILE PHE SER PRO GLY ALA HIS          
SEQRES   8 A  258  ALA ASP GLU SER ASN THR GLY THR VAL LEU PRO HIS GLY          
SEQRES   9 A  258  THR PHE GLU ALA SER GLU ILE ILE ASP ALA PRO PHE GLY          
SEQRES  10 A  258  THR GLY VAL ASP ILE SER VAL ILE ILE PHE LYS PRO ASN          
SEQRES  11 A  258  ALA GLU GLY LYS SER ILE GLY ASP VAL ILE LYS ALA ALA          
SEQRES  12 A  258  ASP LEU GLY ASN SER ASN SER LEU LYS LYS GLY ASP THR          
SEQRES  13 A  258  ALA ASN LEU ILE GLY TYR PRO TYR ASP PHE ASP SER LYS          
SEQRES  14 A  258  ASN MET TYR ARG SER GLN VAL GLU PHE GLN SER THR ASP          
SEQRES  15 A  258  PHE GLY LEU LYS TYR TYR GLY TYR THR VAL PRO GLY ASN          
SEQRES  16 A  258  SER GLY SER GLY ILE PHE ASN SER GLU GLY LYS PHE VAL          
SEQRES  17 A  258  GLY LEU HIS ILE GLY LYS ALA LYS HIS ILE ASN SER GLN          
SEQRES  18 A  258  ASN GLU ILE ASN TYR ALA VAL SER PHE ASN ASP PHE LEU          
SEQRES  19 A  258  ILE ARG ASP LEU LYS GLN LEU ILE LYS GLY GLY GLU ASN          
SEQRES  20 A  258  LEU TYR PHE GLN SER HIS HIS HIS HIS HIS HIS                  
SEQRES   1 B  258  MET ASP GLU GLU SER ASP LEU LYS ASP HIS ARG ASP LYS          
SEQRES   2 B  258  TRP ASN LYS TYR TYR GLY VAL SER PRO ASP GLN LEU SER          
SEQRES   3 B  258  LYS ASP LEU PHE ASP LYS VAL SER PRO GLU GLN ILE LYS          
SEQRES   4 B  258  ASN SER PRO TYR GLN SER VAL GLY ALA LEU PHE VAL LYS          
SEQRES   5 B  258  GLY GLU ALA VAL ALA THR GLY VAL PHE ILE GLY LYS ASN          
SEQRES   6 B  258  THR VAL VAL THR ASN HIS HIS ILE ALA LYS GLU ALA LYS          
SEQRES   7 B  258  ASN ASN PRO SER LYS ILE ILE PHE SER PRO GLY ALA HIS          
SEQRES   8 B  258  ALA ASP GLU SER ASN THR GLY THR VAL LEU PRO HIS GLY          
SEQRES   9 B  258  THR PHE GLU ALA SER GLU ILE ILE ASP ALA PRO PHE GLY          
SEQRES  10 B  258  THR GLY VAL ASP ILE SER VAL ILE ILE PHE LYS PRO ASN          
SEQRES  11 B  258  ALA GLU GLY LYS SER ILE GLY ASP VAL ILE LYS ALA ALA          
SEQRES  12 B  258  ASP LEU GLY ASN SER ASN SER LEU LYS LYS GLY ASP THR          
SEQRES  13 B  258  ALA ASN LEU ILE GLY TYR PRO TYR ASP PHE ASP SER LYS          
SEQRES  14 B  258  ASN MET TYR ARG SER GLN VAL GLU PHE GLN SER THR ASP          
SEQRES  15 B  258  PHE GLY LEU LYS TYR TYR GLY TYR THR VAL PRO GLY ASN          
SEQRES  16 B  258  SER GLY SER GLY ILE PHE ASN SER GLU GLY LYS PHE VAL          
SEQRES  17 B  258  GLY LEU HIS ILE GLY LYS ALA LYS HIS ILE ASN SER GLN          
SEQRES  18 B  258  ASN GLU ILE ASN TYR ALA VAL SER PHE ASN ASP PHE LEU          
SEQRES  19 B  258  ILE ARG ASP LEU LYS GLN LEU ILE LYS GLY GLY GLU ASN          
SEQRES  20 B  258  LEU TYR PHE GLN SER HIS HIS HIS HIS HIS HIS                  
FORMUL   3  HOH   *283(H2 O)                                                    
HELIX    1 AA1 SER A    4  GLY A   18  1                                  15    
HELIX    2 AA2 SER A   20  LEU A   24  5                                   5    
HELIX    3 AA3 SER A   33  LYS A   38  1                                   6    
HELIX    4 AA4 PRO A   41  GLN A   43  5                                   3    
HELIX    5 AA5 ASN A   69  LYS A   74  1                                   6    
HELIX    6 AA6 GLU A   75  LYS A   77  5                                   3    
HELIX    7 AA7 ASN A   79  SER A   81  5                                   3    
HELIX    8 AA8 SER A  134  VAL A  138  5                                   5    
HELIX    9 AA9 ASN A  146  LEU A  150  5                                   5    
HELIX   10 AB1 VAL A  191  SER A  195  5                                   5    
HELIX   11 AB2 ASN A  230  ILE A  241  1                                  12    
HELIX   12 AB3 GLU B    2  SER B    4  5                                   3    
HELIX   13 AB4 ASP B    5  GLY B   18  1                                  14    
HELIX   14 AB5 SER B   20  LEU B   24  5                                   5    
HELIX   15 AB6 GLU B   35  ASN B   39  5                                   5    
HELIX   16 AB7 PRO B   41  GLN B   43  5                                   3    
HELIX   17 AB8 ASN B   69  LYS B   74  1                                   6    
HELIX   18 AB9 GLU B   75  LYS B   77  5                                   3    
HELIX   19 AC1 ASN B   79  SER B   81  5                                   3    
HELIX   20 AC2 SER B  134  VAL B  138  5                                   5    
HELIX   21 AC3 VAL B  191  SER B  195  5                                   5    
HELIX   22 AC4 ASN B  230  LYS B  242  1                                  13    
SHEET    1 AA1 8 PHE A  29  LYS A  31  0                                        
SHEET    2 AA1 8 TYR A 171  SER A 179 -1  O  ARG A 172   N  ASP A  30           
SHEET    3 AA1 8 LEU A 184  TYR A 187 -1  O  LYS A 185   N  SER A 179           
SHEET    4 AA1 8 GLU A 222  SER A 228 -1  O  ALA A 226   N  LEU A 184           
SHEET    5 AA1 8 PHE A 206  LYS A 215 -1  N  LEU A 209   O  VAL A 227           
SHEET    6 AA1 8 GLY A 198  PHE A 200 -1  N  ILE A 199   O  GLY A 208           
SHEET    7 AA1 8 THR A 155  GLY A 160 -1  N  ASN A 157   O  PHE A 200           
SHEET    8 AA1 8 TYR A 171  SER A 179 -1  O  SER A 173   N  LEU A 158           
SHEET    1 AA2 7 VAL A  45  VAL A  50  0                                        
SHEET    2 AA2 7 ALA A  54  GLY A  62 -1  O  ALA A  56   N  LEU A  48           
SHEET    3 AA2 7 THR A  65  THR A  68 -1  O  THR A  65   N  ILE A  61           
SHEET    4 AA2 7 SER A 122  PHE A 126 -1  O  ILE A 124   N  VAL A  66           
SHEET    5 AA2 7 PHE A 105  ILE A 111 -1  N  ILE A 111   O  VAL A 123           
SHEET    6 AA2 7 ILE A  83  PRO A  87 -1  N  PHE A  85   O  PHE A 105           
SHEET    7 AA2 7 VAL A  45  VAL A  50 -1  N  PHE A  49   O  ILE A  84           
SHEET    1 AA3 2 HIS A  90  ALA A  91  0                                        
SHEET    2 AA3 2 THR A  98  VAL A  99 -1  O  VAL A  99   N  HIS A  90           
SHEET    1 AA4 8 PHE B  29  LYS B  31  0                                        
SHEET    2 AA4 8 TYR B 171  SER B 179 -1  O  ARG B 172   N  ASP B  30           
SHEET    3 AA4 8 LEU B 184  TYR B 187 -1  O  LYS B 185   N  GLN B 178           
SHEET    4 AA4 8 GLU B 222  SER B 228 -1  O  ALA B 226   N  LEU B 184           
SHEET    5 AA4 8 PHE B 206  LYS B 215 -1  N  ALA B 214   O  ILE B 223           
SHEET    6 AA4 8 GLY B 198  PHE B 200 -1  N  ILE B 199   O  VAL B 207           
SHEET    7 AA4 8 THR B 155  GLY B 160 -1  N  ASN B 157   O  PHE B 200           
SHEET    8 AA4 8 TYR B 171  SER B 179 -1  O  TYR B 171   N  GLY B 160           
SHEET    1 AA5 7 VAL B  45  VAL B  50  0                                        
SHEET    2 AA5 7 ALA B  54  GLY B  62 -1  O  ALA B  54   N  VAL B  50           
SHEET    3 AA5 7 THR B  65  THR B  68 -1  O  THR B  65   N  ILE B  61           
SHEET    4 AA5 7 SER B 122  PHE B 126 -1  O  ILE B 124   N  VAL B  66           
SHEET    5 AA5 7 PHE B 105  ILE B 111 -1  N  SER B 108   O  ILE B 125           
SHEET    6 AA5 7 ILE B  83  PRO B  87 -1  N  PHE B  85   O  PHE B 105           
SHEET    7 AA5 7 VAL B  45  VAL B  50 -1  N  PHE B  49   O  ILE B  84           
SHEET    1 AA6 2 HIS B  90  ALA B  91  0                                        
SHEET    2 AA6 2 THR B  98  VAL B  99 -1  O  VAL B  99   N  HIS B  90           
CISPEP   1 SER A   40    PRO A   41          0         1.00                     
CISPEP   2 SER B   40    PRO B   41          0         3.40                     
CRYST1   45.150   71.398   71.383  90.00  94.71  90.00 P 1 21 1      4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.022148  0.000000  0.001823        0.00000                         
SCALE2      0.000000  0.014006  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014056        0.00000