HEADER    HYDROLASE                               15-JUL-98   1BK7              
TITLE     RIBONUCLEASE MC1 FROM THE SEEDS OF BITTER GOURD                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (RIBONUCLEASE MC1);                                
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: RNASE MC1;                                                  
COMPND   5 EC: 3.1.27.1                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MOMORDICA CHARANTIA;                            
SOURCE   3 ORGANISM_COMMON: BALSAM PEAR;                                        
SOURCE   4 ORGANISM_TAXID: 3673;                                                
SOURCE   5 TISSUE: SEED                                                         
KEYWDS    HYDROLASE (NUCLEIC ACID, RNA), HYDROLASE                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.NAKAGAWA,I.TANAKA                                                   
REVDAT   8   20-NOV-24 1BK7    1       REMARK                                   
REVDAT   7   27-DEC-23 1BK7    1       SEQADV                                   
REVDAT   6   04-APR-18 1BK7    1       REMARK                                   
REVDAT   5   24-FEB-09 1BK7    1       VERSN                                    
REVDAT   4   01-APR-03 1BK7    1       JRNL                                     
REVDAT   3   26-SEP-01 1BK7    1       HELIX                                    
REVDAT   2   26-JAN-00 1BK7    1       JRNL                                     
REVDAT   1   23-JUL-99 1BK7    0                                                
JRNL        AUTH   A.NAKAGAWA,I.TANAKA,R.SAKAI,T.NAKASHIMA,G.FUNATSU,M.KIMURA   
JRNL        TITL   CRYSTAL STRUCTURE OF A RIBONUCLEASE FROM THE SEEDS OF BITTER 
JRNL        TITL 2 GOURD (MOMORDICA CHARANTIA) AT 1.75 A RESOLUTION.            
JRNL        REF    BIOCHIM.BIOPHYS.ACTA          V.1433   253 1999              
JRNL        REFN                   ISSN 0006-3002                               
JRNL        PMID   10446375                                                     
JRNL        DOI    10.1016/S0167-4838(99)00126-0                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   A.DE,G.FUNATSU                                               
REMARK   1  TITL   CRYSTALLIZATION AND PRELIMINARY X-RAY DIFFRACTION ANALYSIS   
REMARK   1  TITL 2 OF A PLANT RIBONUCLEASE FROM THE SEEDS OF THE BITTER GOURD   
REMARK   1  TITL 3 MOMORDICA CHARANTIA                                          
REMARK   1  REF    J.MOL.BIOL.                   V. 228  1271 1992              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   H.IDE,M.KIMURA,M.ARAI,G.FUNATSU                              
REMARK   1  TITL   THE COMPLETE AMINO ACID SEQUENCE OF RIBONUCLEASE FROM THE    
REMARK   1  TITL 2 SEEDS OF BITTER GOURD                                        
REMARK   1  REF    FEBS LETT.                    V. 284   161 1991              
REMARK   1  REFN                   ISSN 0014-5793                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   H.IDE,M.KIMURA,M.ARAI,G.FUNATSU                              
REMARK   1  TITL   THE COMPLETE AMINO ACID SEQUENCE OF RIBONUCLEASE FROM THE    
REMARK   1  TITL 2 SEEDS OF BITTER GOURD                                        
REMARK   1  REF    FEBS LETT.                    V. 289   126 1991              
REMARK   1  REFN                   ISSN 0014-5793                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.75 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.851                                         
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.75                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 100.00                         
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 10000000.000                   
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 97.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 20257                          
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 SET) : 0.192                           
REMARK   3   FREE R VALUE                     : 0.241                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1031                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.008                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.75                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.86                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 3042                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3270                       
REMARK   3   BIN FREE R VALUE                    : 0.3640                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.20                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 168                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.028                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1496                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 187                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.30                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.20                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.22                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.25                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.23                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.006                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.200                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.40                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.620                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.510 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.270 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.830 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 4.380 ; 2.500                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : NULL                                           
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : TOPHCSDX.PRO                                   
REMARK   3  TOPOLOGY FILE  2   : WAT.TOP                                        
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1BK7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-JUL-99.                  
REMARK 100 THE DEPOSITION ID IS D_1000007000.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-FEB-96                          
REMARK 200  TEMPERATURE           (KELVIN) : 283                                
REMARK 200  PH                             : 6.7                                
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          : MACSCIENCE M18X                    
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NI FILTER                          
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MACSCIENCE                         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 69704                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.750                              
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 4.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.4                               
REMARK 200  DATA REDUNDANCY                : 3.400                              
REMARK 200  R MERGE                    (I) : 0.05500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 9.1000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.75                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.95                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.19900                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIRAS                        
REMARK 200 SOFTWARE USED: SHARP                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.34                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEN WAS CRYSTALLIZED FROM THE 1:1     
REMARK 280  MIXTURE OF 10MG/ML PROTEIN SOLUTION IN 5MM TRIS-HCL PH7.2 AND 30%   
REMARK 280  PEG 6000, 0.2M NA-ACETATE, 0.1M NA-CACODYLATE PH 6.7                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   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       19.40000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       37.71500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       33.98500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       37.71500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       19.40000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       33.98500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
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: 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    GLN A  40      110.91   -160.24                                   
REMARK 500    ALA A  75       27.18    -79.73                                   
REMARK 500    ASN A 126       18.47   -153.72                                   
REMARK 500    SER A 174      -25.08   -141.32                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1BK7 A    1   190  UNP    P23540   RNMC_MOMCH       1    191             
SEQADV 1BK7 GLN A   40  UNP  P23540    GLY    40 CONFLICT                       
SEQADV 1BK7     A       UNP  P23540    GLN    50 DELETION                       
SEQRES   1 A  190  PHE ASP SER PHE TRP PHE VAL GLN GLN TRP PRO PRO ALA          
SEQRES   2 A  190  VAL CYS SER PHE GLN LYS SER GLY SER CYS PRO GLY SER          
SEQRES   3 A  190  GLY LEU ARG THR PHE THR ILE HIS GLY LEU TRP PRO GLN          
SEQRES   4 A  190  GLN SER GLY THR SER LEU THR ASN CYS PRO GLY SER PRO          
SEQRES   5 A  190  PHE ASP ILE THR LYS ILE SER HIS LEU GLN SER GLN LEU          
SEQRES   6 A  190  ASN THR LEU TRP PRO ASN VAL LEU ARG ALA ASN ASN GLN          
SEQRES   7 A  190  GLN PHE TRP SER HIS GLU TRP THR LYS HIS GLY THR CYS          
SEQRES   8 A  190  SER GLU SER THR PHE ASN GLN ALA ALA TYR PHE LYS LEU          
SEQRES   9 A  190  ALA VAL ASP MET ARG ASN ASN TYR ASP ILE ILE GLY ALA          
SEQRES  10 A  190  LEU ARG PRO HIS ALA ALA GLY PRO ASN GLY ARG THR LYS          
SEQRES  11 A  190  SER ARG GLN ALA ILE LYS GLY PHE LEU LYS ALA LYS PHE          
SEQRES  12 A  190  GLY LYS PHE PRO GLY LEU ARG CYS ARG THR ASP PRO GLN          
SEQRES  13 A  190  THR LYS VAL SER TYR LEU VAL GLN VAL VAL ALA CYS PHE          
SEQRES  14 A  190  ALA GLN ASP GLY SER THR LEU ILE ASP CYS THR ARG ASP          
SEQRES  15 A  190  THR CYS GLY ALA ASN PHE ILE PHE                              
FORMUL   2  HOH   *187(H2 O)                                                    
HELIX    1  H1 PRO A   11  SER A   16  1                                   6    
HELIX    2  H2 PRO A   24  GLY A   27  5                                   4    
HELIX    3  H3 ILE A   55  LEU A   61  5                                   7    
HELIX    4  H4 GLN A   62  LEU A   68  1                                   7    
HELIX    5  H5 ASN A   77  LYS A   87  1                                  11    
HELIX    6  H6 GLY A   89  SER A   92  5                                   4    
HELIX    7  H7 GLN A   98  ASN A  111  1                                  14    
HELIX    8  H8 ILE A  114  LEU A  118  1                                   5    
HELIX    9  H9 ARG A  119  HIS A  121  5                                   3    
HELIX   10 H10 ARG A  132  PHE A  143  5                                  12    
SHEET    1  S1 1 SER A   3  GLN A   9  0                                        
SHEET    1  S2 1 THR A  32  GLN A  40  0                                        
SHEET    1  S3 1 THR A  43  SER A  44  0                                        
SHEET    1  S4 1 THR A 129  SER A 131  0                                        
SHEET    1  S5 1 GLY A 148  THR A 153  0                                        
SHEET    1  S6 1 SER A 160  ALA A 170  0                                        
SHEET    1  S7 1 LEU A 176  ILE A 177  0                                        
SHEET    1  S8 1 ASN A 187  ILE A 189  0                                        
SSBOND   1 CYS A   15    CYS A   23                          1555   1555  2.02  
SSBOND   2 CYS A   48    CYS A   91                          1555   1555  2.03  
SSBOND   3 CYS A  151    CYS A  184                          1555   1555  2.03  
SSBOND   4 CYS A  168    CYS A  179                          1555   1555  2.03  
CRYST1   38.800   67.970   75.430  90.00  90.00  90.00 P 21 21 21    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      0.025773  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014712  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013257        0.00000