HEADER    HYDROLASE                               20-MAY-99   1CNM              
TITLE     ENHANCEMENT OF CATALYTIC EFFICIENCY OF PROTEINASE K THROUGH EXPOSURE  
TITLE    2 TO ANHYDROUS ORGANIC SOLVENT AT 70 DEGREES CELSIUS                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (PROTEINASE K);                                    
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.4.21.64                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ENGYODONTIUM ALBUM;                             
SOURCE   3 ORGANISM_TAXID: 37998;                                               
SOURCE   4 STRAIN: LIMBER                                                       
KEYWDS    PROTEINASE K, ANHYDROUS ORGANIC SOLVENTS, STABILITY, ENHANCED         
KEYWDS   2 ACTIVITY, HYDROLASE                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.N.GUPTA,R.TYAGI,S.SHARMA,S.KARTHIKEYAN,T.P.SINGH                    
REVDAT   5   20-NOV-24 1CNM    1       REMARK                                   
REVDAT   4   09-AUG-23 1CNM    1       REMARK LINK                              
REVDAT   3   24-FEB-09 1CNM    1       VERSN                                    
REVDAT   2   15-JUL-03 1CNM    1       JRNL   REMARK                            
REVDAT   1   27-MAY-99 1CNM    0                                                
JRNL        AUTH   M.N.GUPTA,R.TYAGI,S.SHARMA,S.KARTHIKEYAN,T.P.SINGH           
JRNL        TITL   ENHANCEMENT OF CATALYTIC EFFICIENCY OF ENZYMES THROUGH       
JRNL        TITL 2 EXPOSURE TO ANHYDROUS ORGANIC SOLVENT AT 70 DEGREES C.       
JRNL        TITL 3 THREE-DIMENSIONAL STRUCTURE OF A TREATED SERINE PROTEINASE   
JRNL        TITL 4 AT 2.2 A RESOLUTION.                                         
JRNL        REF    PROTEINS                      V.  39   226 2000              
JRNL        REFN                   ISSN 0887-3585                               
JRNL        PMID   10737944                                                     
JRNL        DOI    10.1002/(SICI)1097-0134(20000515)39:3<226::AID-PROT50>3.0.CO 
JRNL        DOI  2 ;2-Y                                                         
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CCP4                                                 
REMARK   3   AUTHORS     : NULL                                                 
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 15.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 12156                          
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) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.168                           
REMARK   3   FREE R VALUE                     : 0.231                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 3.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2030                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 11                                      
REMARK   3   SOLVENT ATOMS            : 135                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 17.10                          
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.008 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : 0.025 ; 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 1CNM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-MAY-99.                  
REMARK 100 THE DEPOSITION ID IS D_1000001092.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-SEP-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 285                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE CRYSTAL                   
REMARK 200  OPTICS                         : PIN HOLE                           
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 12156                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 15.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.0                               
REMARK 200  DATA REDUNDANCY                : 5.400                              
REMARK 200  R MERGE                    (I) : 0.04500                            
REMARK 200  R SYM                      (I) : 0.04500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 40.0100                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.00                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 94.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.60                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.08700                            
REMARK 200  R SYM FOR SHELL            (I) : 0.08700                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 24.41                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: 2PRK                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALLIZED BY DISSOLVING THE           
REMARK 280  10%(W/V) OF LYOPHILIZED ENZYME IN 50MM TRIS.HCL, 1MM CACL2, PH      
REMARK 280  6.5. 25 MICRO LITRE DROPS OF THIS SOLUTION WERE EQUILIBRATED IN     
REMARK 280  A MICRODIALYSIS SETUP AGAINST 1M NANO3 IN THE SAME BUFFER AT 4      
REMARK 280  DEGREE., PH 7.5                                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2                        
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   -Y+1/2,X+1/2,Z+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       54.18500            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       34.16000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       34.16000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       81.27750            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       34.16000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       34.16000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       27.09250            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       34.16000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       34.16000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       81.27750            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       34.16000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       34.16000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       27.09250            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       54.18500            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 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 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   O    HOH A   615     O    HOH A   615     8665     1.07            
REMARK 500   O    HOH A   600     O    HOH A   600     8665     1.88            
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    PRO A 171   CD    PRO A 171   N       0.183                       
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    ASP A  39   CB  -  CG  -  OD2 ANGL. DEV. =   6.2 DEGREES          
REMARK 500    THR A  58   CB  -  CA  -  C   ANGL. DEV. = -21.8 DEGREES          
REMARK 500    THR A  58   N   -  CA  -  CB  ANGL. DEV. =  16.6 DEGREES          
REMARK 500    ARG A  80   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500    ARG A  80   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.5 DEGREES          
REMARK 500    LEU A 133   CA  -  CB  -  CG  ANGL. DEV. =  20.2 DEGREES          
REMARK 500    SER A 170   CA  -  C   -  O   ANGL. DEV. = -16.9 DEGREES          
REMARK 500    SER A 170   CA  -  C   -  N   ANGL. DEV. = -19.6 DEGREES          
REMARK 500    SER A 170   O   -  C   -  N   ANGL. DEV. =  30.3 DEGREES          
REMARK 500    PRO A 171   C   -  N   -  CA  ANGL. DEV. =  42.0 DEGREES          
REMARK 500    PRO A 171   C   -  N   -  CD  ANGL. DEV. = -42.3 DEGREES          
REMARK 500    PRO A 171   CA  -  N   -  CD  ANGL. DEV. = -28.9 DEGREES          
REMARK 500    PRO A 171   N   -  CA  -  CB  ANGL. DEV. =  28.4 DEGREES          
REMARK 500    PRO A 171   N   -  CD  -  CG  ANGL. DEV. =  18.7 DEGREES          
REMARK 500    ARG A 185   CD  -  NE  -  CZ  ANGL. DEV. =  18.4 DEGREES          
REMARK 500    ARG A 185   NE  -  CZ  -  NH1 ANGL. DEV. =   7.8 DEGREES          
REMARK 500    ARG A 185   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.2 DEGREES          
REMARK 500    ASP A 200   CB  -  CA  -  C   ANGL. DEV. = -13.2 DEGREES          
REMARK 500    SER A 207   N   -  CA  -  CB  ANGL. DEV. =  10.0 DEGREES          
REMARK 500    ARG A 250   NE  -  CZ  -  NH1 ANGL. DEV. =   4.7 DEGREES          
REMARK 500    ARG A 250   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.3 DEGREES          
REMARK 500    GLN A 278   N   -  CA  -  CB  ANGL. DEV. =  12.0 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    ASP A  39     -134.62   -155.46                                   
REMARK 500    PRO A 171      -33.10     69.43                                   
REMARK 500    SER A 207       70.44     47.15                                   
REMARK 500    SER A 216     -161.54   -110.40                                   
REMARK 500    ASN A 270       70.96   -116.09                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 SER A  170     PRO A  171                 -138.47                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    SER A 170        -11.21                                           
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 281  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR A  16   O                                                      
REMARK 620 2 ASP A 260   OD2  64.2                                              
REMARK 620 3 ASP A 260   OD1 106.4  42.2                                        
REMARK 620 4 HOH A 505   O    86.8  72.5  71.0                                  
REMARK 620 5 HOH A 506   O    75.5  70.3  82.8 142.8                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 280  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 PRO A 175   O                                                      
REMARK 620 2 VAL A 177   O    86.7                                              
REMARK 620 3 ASP A 200   OD1 151.8 112.6                                        
REMARK 620 4 ASP A 200   OD2 162.5  80.8  45.6                                  
REMARK 620 5 HOH A 501   O    76.2 135.7  75.7 121.2                            
REMARK 620 6 HOH A 502   O    85.9  67.2  83.4 100.3  71.0                      
REMARK 620 7 HOH A 503   O   100.4 152.6  72.1  85.6  71.6 139.2                
REMARK 620 8 HOH A 504   O    83.9  70.0 121.2  80.3 145.1 136.4  84.4          
REMARK 620 N                    1     2     3     4     5     6     7           
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 280                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 281                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CCN A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CCN A 302                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CCN A 303                 
DBREF  1CNM A    1   279  UNP    P06873   PRTK_TRIAL     106    384             
SEQRES   1 A  279  ALA ALA GLN THR ASN ALA PRO TRP GLY LEU ALA ARG ILE          
SEQRES   2 A  279  SER SER THR SER PRO GLY THR SER THR TYR TYR TYR ASP          
SEQRES   3 A  279  GLU SER ALA GLY GLN GLY SER CYS VAL TYR VAL ILE ASP          
SEQRES   4 A  279  THR GLY ILE GLU ALA SER HIS PRO GLU PHE GLU GLY ARG          
SEQRES   5 A  279  ALA GLN MET VAL LYS THR TYR TYR TYR SER SER ARG ASP          
SEQRES   6 A  279  GLY ASN GLY HIS GLY THR HIS CYS ALA GLY THR VAL GLY          
SEQRES   7 A  279  SER ARG THR TYR GLY VAL ALA LYS LYS THR GLN LEU PHE          
SEQRES   8 A  279  GLY VAL LYS VAL LEU ASP ASP ASN GLY SER GLY GLN TYR          
SEQRES   9 A  279  SER THR ILE ILE ALA GLY MET ASP PHE VAL ALA SER ASP          
SEQRES  10 A  279  LYS ASN ASN ARG ASN CYS PRO LYS GLY VAL VAL ALA SER          
SEQRES  11 A  279  LEU SER LEU GLY GLY GLY TYR SER SER SER VAL ASN SER          
SEQRES  12 A  279  ALA ALA ALA ARG LEU GLN SER SER GLY VAL MET VAL ALA          
SEQRES  13 A  279  VAL ALA ALA GLY ASN ASN ASN ALA ASP ALA ARG ASN TYR          
SEQRES  14 A  279  SER PRO ALA SER GLU PRO SER VAL CYS THR VAL GLY ALA          
SEQRES  15 A  279  SER ASP ARG TYR ASP ARG ARG SER SER PHE SER ASN TYR          
SEQRES  16 A  279  GLY SER VAL LEU ASP ILE PHE GLY PRO GLY THR SER ILE          
SEQRES  17 A  279  LEU SER THR TRP ILE GLY GLY SER THR ARG SER ILE SER          
SEQRES  18 A  279  GLY THR SER MET ALA THR PRO HIS VAL ALA GLY LEU ALA          
SEQRES  19 A  279  ALA TYR LEU MET THR LEU GLY LYS THR THR ALA ALA SER          
SEQRES  20 A  279  ALA CYS ARG TYR ILE ALA ASP THR ALA ASN LYS GLY ASP          
SEQRES  21 A  279  LEU SER ASN ILE PRO PHE GLY THR VAL ASN LEU LEU ALA          
SEQRES  22 A  279  TYR ASN ASN TYR GLN ALA                                      
HET     CA  A 280       1                                                       
HET     CA  A 281       1                                                       
HET    CCN  A 301       3                                                       
HET    CCN  A 302       3                                                       
HET    CCN  A 303       3                                                       
HETNAM      CA CALCIUM ION                                                      
HETNAM     CCN ACETONITRILE                                                     
FORMUL   2   CA    2(CA 2+)                                                     
FORMUL   4  CCN    3(C2 H3 N)                                                   
FORMUL   7  HOH   *135(H2 O)                                                    
HELIX    1   1 TRP A    8  SER A   14  1                                   7    
HELIX    2   2 PRO A   47  PHE A   49  5                                   3    
HELIX    3   3 HIS A   69  GLY A   78  1                                  10    
HELIX    4   4 TYR A  104  ASN A  120  1                                  17    
HELIX    5   5 SER A  139  GLY A  152  1                                  14    
HELIX    6   6 ALA A  166  ASN A  168  5                                   3    
HELIX    7   7 THR A  223  LEU A  240  1                                  18    
HELIX    8   8 ALA A  248  THR A  255  1                                   8    
SHEET    1   A 7 ALA A  53  THR A  58  0                                        
SHEET    2   A 7 GLN A  89  LYS A  94  1  N  LEU A  90   O  GLN A  54           
SHEET    3   A 7 SER A  33  ASP A  39  1  N  VAL A  35   O  GLN A  89           
SHEET    4   A 7 GLY A 126  LEU A 131  1  N  GLY A 126   O  CYS A  34           
SHEET    5   A 7 MET A 154  ALA A 158  1  N  MET A 154   O  ALA A 129           
SHEET    6   A 7 CYS A 178  SER A 183  1  N  CYS A 178   O  VAL A 157           
SHEET    7   A 7 ILE A 201  PRO A 204  1  N  ILE A 201   O  GLY A 181           
SHEET    1   B 2 ILE A 208  TRP A 212  0                                        
SHEET    2   B 2 SER A 216  ILE A 220 -1  N  ILE A 220   O  ILE A 208           
SSBOND   1 CYS A   34    CYS A  123                          1555   1555  2.01  
SSBOND   2 CYS A  178    CYS A  249                          1555   1555  2.04  
LINK         O   THR A  16                CA    CA A 281     1555   1555  2.86  
LINK         O   PRO A 175                CA    CA A 280     1555   1555  2.73  
LINK         O   VAL A 177                CA    CA A 280     1555   1555  2.74  
LINK         OD1 ASP A 200                CA    CA A 280     1555   1555  2.96  
LINK         OD2 ASP A 200                CA    CA A 280     1555   1555  2.78  
LINK         OD2 ASP A 260                CA    CA A 281     1555   1555  3.15  
LINK         OD1 ASP A 260                CA    CA A 281     1555   1555  3.03  
LINK        CA    CA A 280                 O   HOH A 501     1555   1555  2.92  
LINK        CA    CA A 280                 O   HOH A 502     1555   1555  2.84  
LINK        CA    CA A 280                 O   HOH A 503     1555   1555  2.95  
LINK        CA    CA A 280                 O   HOH A 504     1555   1555  2.82  
LINK        CA    CA A 281                 O   HOH A 505     1555   1555  3.07  
LINK        CA    CA A 281                 O   HOH A 506     1555   1555  3.07  
SITE     1 AC1  7 PRO A 175  VAL A 177  ASP A 200  HOH A 501                    
SITE     2 AC1  7 HOH A 502  HOH A 503  HOH A 504                               
SITE     1 AC2  4 THR A  16  ASP A 260  HOH A 505  HOH A 506                    
SITE     1 AC3  3 GLY A 134  CCN A 302  HOH A 576                               
SITE     1 AC4  3 SER A 224  CCN A 301  HOH A 642                               
SITE     1 AC5  2 ASN A  67  HOH A 629                                          
CRYST1   68.320   68.320  108.370  90.00  90.00  90.00 P 43 21 2     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      0.014637  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014637  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009228        0.00000