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Database: PDB
Entry: 2BLP
LinkDB: 2BLP
Original site: 2BLP 
HEADER    HYDROLASE                               08-MAR-05   2BLP              
TITLE     RNASE BEFORE UNATTENUATED X-RAY BURN                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEASE PANCREATIC PRECURSOR;                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: RNASE 1, RNASE A;                                           
COMPND   5 EC: 3.1.27.5                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: BOVINE;                                             
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 ORGAN: PANCREAS                                                      
KEYWDS    RADIATION DAMAGE, SYNCHROTRON, PHASING, RIP, HYDROLASE                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.H.NANAO,R.B.RAVELLI                                                 
REVDAT   3   13-JUN-18 2BLP    1       JRNL   REMARK                            
REVDAT   2   24-FEB-09 2BLP    1       VERSN                                    
REVDAT   1   07-SEP-05 2BLP    0                                                
JRNL        AUTH   M.H.NANAO,G.M.SHELDRICK,R.B.RAVELLI                          
JRNL        TITL   IMPROVING RADIATION-DAMAGE SUBSTRUCTURES FOR RIP.            
JRNL        REF    ACTA CRYSTALLOGR. D BIOL.     V.  61  1227 2005              
JRNL        REF  2 CRYSTALLOGR.                                                 
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   16131756                                                     
JRNL        DOI    10.1107/S0907444905019360                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 45.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 28316                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.147                           
REMARK   3   R VALUE            (WORKING SET) : 0.145                           
REMARK   3   FREE R VALUE                     : 0.176                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1509                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 10                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.40                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.48                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 4019                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1580                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 210                          
REMARK   3   BIN FREE R VALUE                    : 0.2200                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 951                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 143                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 11.12                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.15000                                             
REMARK   3    B22 (A**2) : -0.15000                                             
REMARK   3    B33 (A**2) : 0.23000                                              
REMARK   3    B12 (A**2) : -0.08000                                             
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.051         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.050         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.026         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.414         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.967                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.958                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   975 ; 0.017 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):   809 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1321 ; 1.655 ; 1.925       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  1913 ; 0.992 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   125 ; 6.385 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    44 ;36.562 ;25.227       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   169 ;11.194 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     4 ;22.121 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   146 ; 0.110 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1097 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   183 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   172 ; 0.319 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):   779 ; 0.232 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   486 ; 0.184 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):   560 ; 0.089 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    76 ; 0.253 ; 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):     5 ; 0.259 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    45 ; 0.282 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    23 ; 0.532 ; 0.200       
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):   791 ; 2.141 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1010 ; 2.684 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   407 ; 3.485 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   310 ; 4.532 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
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 : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS. SIDECHAIN OCCUPANCIES HAVE BEEN REDUCED BECAUSE OF       
REMARK   3  STRONG NEGATIVE PEAKS IN DIFFERENCE FOURIER MAPS IN RESIDUES LYS    
REMARK   3  1,LYS 31,LYS 37,ASP 38,ARG 39,LYS 91, LYS 104                       
REMARK   4                                                                      
REMARK   4 2BLP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 08-MAR-05.                  
REMARK 100 THE DEPOSITION ID IS D_1290023157.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-DEC-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 5.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-4                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.939255                           
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : BENT MIRROR                        
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC CCD                           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 55873                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY                : 1.900                              
REMARK 200  R MERGE                    (I) : 0.04000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.9300                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.49                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 90.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 1.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.24000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.250                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER                        
REMARK 200 SOFTWARE USED: SHELXD, SHELXE                                        
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.50                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.79                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 30 % PEG 5000 MME,1 M SODIUM             
REMARK 280  CHLORIDE,50 MM PH 4.5 SODIUM ACETATE, PH 5.50                       
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-Z+2/3                                          
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       42.42867            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       21.21433            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       21.21433            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       42.42867            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A2121  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A2143  LIES ON A SPECIAL POSITION.                          
REMARK 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 ENDONUCLEASE THAT CATALYZES THE CLEAVAGE OF RNA ON THE               
REMARK 400 3' SIDE OF PYRIMIDINE NUCLEOTIDES. ACTS ON SINGLE STRANDED AND       
REMARK 400 DOUBLE STRANDED RNA.                                                 
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  2006     O    HOH A  2007              0.73            
REMARK 500   O    HOH A  2005     O    HOH A  2009              1.28            
REMARK 500   O    HOH A  2078     O    HOH A  2079              1.62            
REMARK 500   O    HOH A  2062     O    HOH A  2102              2.03            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A  2119     O    HOH A  2142     4555     1.97            
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    HIS A  48       63.30   -100.57                                   
REMARK 500    GLN A  60     -137.10    -98.35                                   
REMARK 500    ASN A  94       73.17   -107.77                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN               
REMARK 700 ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW,          
REMARK 700 TWO SHEETS ARE DEFINED.                                              
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A1125                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1A2W   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A 3D DOMAIN-SWAPPED DIMER OF BOVINE PANCREATIC  
REMARK 900 RIBONUCLEASE A                                                       
REMARK 900 RELATED ID: 1A5P   RELATED DB: PDB                                   
REMARK 900 C[40,95]A VARIANT OF BOVINE PANCREATIC RIBONUCLEASE A                
REMARK 900 RELATED ID: 1A5Q   RELATED DB: PDB                                   
REMARK 900 P93A VARIANT OF BOVINE PANCREATIC RIBONUCLEASE A                     
REMARK 900 RELATED ID: 1AFK   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A IN COMPLEX WITH 5'-              
REMARK 900 DIPHOSPHOADENOSINE-3'- PHOSPHATE                                     
REMARK 900 RELATED ID: 1AFL   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A IN COMPLEX WITH 5'- DIPHOSPHOADENOSINE 2'-PHOSPHATE   
REMARK 900 AT 1.7 ANGSTROM RESOLUTION                                           
REMARK 900 RELATED ID: 1AFU   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF RIBONUCLEASE A AT 2.0 ANGSTROMS FROM MONOCLINIC         
REMARK 900 CRYSTALS                                                             
REMARK 900 RELATED ID: 1AQP   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COPPER COMPLEX                                        
REMARK 900 RELATED ID: 1B6V   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A HYBRID BETWEEN RIBONUCLEASE A AND BOVINE      
REMARK 900 SEMINAL RIBONUCLEASE                                                 
REMARK 900 RELATED ID: 1BEL   RELATED DB: PDB                                   
REMARK 900 HYDROLASE PHOSPHORIC DIESTER, RIBONUCLEIC ACID                       
REMARK 900 RELATED ID: 1BZQ   RELATED DB: PDB                                   
REMARK 900 COMPLEX OF A DROMEDARY SINGLE-DOMAIN VHH ANTIBODY FRAGMENT WITH      
REMARK 900 RNASE A                                                              
REMARK 900 RELATED ID: 1C0B   RELATED DB: PDB                                   
REMARK 900 BOVINE PANCREATIC RIBONUCLEASE A DESICCATED FOR 2.5 DAYS             
REMARK 900 RELATED ID: 1C0C   RELATED DB: PDB                                   
REMARK 900 BOVINE PANCREATIC RIBONUCLEASE A DESICCATED FOR 4.0 DAYS             
REMARK 900 RELATED ID: 1C8W   RELATED DB: PDB                                   
REMARK 900 THR45GLY VARIANT OF RIBONUCLEASE A                                   
REMARK 900 RELATED ID: 1C9V   RELATED DB: PDB                                   
REMARK 900 H12A VARIANT OF RIBONUCLEASE A                                       
REMARK 900 RELATED ID: 1C9X   RELATED DB: PDB                                   
REMARK 900 H119A VARIANT OF RIBONUCLEASE A                                      
REMARK 900 RELATED ID: 1CJQ   RELATED DB: PDB                                   
REMARK 900 X-RAY CRYSTALLOGRAPHIC STUDIES OF THE DENATURATION OF THE            
REMARK 900 DENATURATION OF RIBONUCLEASE S.                                      
REMARK 900 RELATED ID: 1CJR   RELATED DB: PDB                                   
REMARK 900 X-RAY CRYSTALLOGRAPHIC STUDIES OF DENATURATION IN RIBONUCLEASE S     
REMARK 900 RELATED ID: 1D5D   RELATED DB: PDB                                   
REMARK 900 THE ROLE OF PHENYLALANINE 8 IN THE STABILIZATION OF THE SPROTEIN-S   
REMARK 900 PEPTIDE INTERACTION: PACKING AND CAVITIES                            
REMARK 900 RELATED ID: 1D5E   RELATED DB: PDB                                   
REMARK 900 THE ROLE OF PHENYLALANINE 8 IN THE STABILIZATION OF THE SPROTEIN-S   
REMARK 900 PEPTIDE INTERACTION: PACKING AND CAVITIES                            
REMARK 900 RELATED ID: 1D5H   RELATED DB: PDB                                   
REMARK 900 RNASE S(F8A). MUTANT RIBONUCLEASE S.                                 
REMARK 900 RELATED ID: 1DFJ   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE INHIBITOR COMPLEXED WITH RIBONUCLEASE A                 
REMARK 900 RELATED ID: 1DY5   RELATED DB: PDB                                   
REMARK 900 DEAMIDATED DERIVATIVE OF BOVINE PANCREATIC RIBONUCLEASE              
REMARK 900 RELATED ID: 1EIC   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF F120A MUTANT OF BOVINE PANCREATICRIBONUCLEASE A 
REMARK 900 RELATED ID: 1EID   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF F120G MUTANT OF BOVINE PANCREATICRIBONUCLEASE A 
REMARK 900 RELATED ID: 1EIE   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF F120W MUTANT OF BOVINE PANCREATICRIBONUCLEASE A 
REMARK 900 RELATED ID: 1EOS   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A COMPLEXED WITH URIDYLYL(2', 5')  
REMARK 900 GUANOSINE (PRODUCTIVE BINDING)                                       
REMARK 900 RELATED ID: 1EOW   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A COMPLEXED WITH URIDYLYL(2', 5')  
REMARK 900 GUANOSINE (NON- PRODUCTIVE BINDING)                                  
REMARK 900 RELATED ID: 1F0V   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF AN RNASE A DIMER DISPLAYING A NEW TYPE OF 3D    
REMARK 900 DOMAIN SWAPPING                                                      
REMARK 900 RELATED ID: 1FEV   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE ALA4AIB MUTATION IN RNASE S                 
REMARK 900 RELATED ID: 1FS3   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF WILD-TYPE BOVINE PANCREATICRIBONUCLEASE A       
REMARK 900 RELATED ID: 1GV7   RELATED DB: PDB                                   
REMARK 900 GUEST-HOST CROSSTALK IN AN ANGIOGENIN/RNASE A CHIMERIC PROTEIN       
REMARK 900 RELATED ID: 1IZP   RELATED DB: PDB                                   
REMARK 900 F46L MUTANT OF BOVINE PANCREATIC RIBONUCLEASE A                      
REMARK 900 RELATED ID: 1IZQ   RELATED DB: PDB                                   
REMARK 900 F46V MUTANT OF BOVINE PANCREATIC RIBONUCLEASE A                      
REMARK 900 RELATED ID: 1IZR   RELATED DB: PDB                                   
REMARK 900 F46A MUTANT OF BOVINE PANCREATIC RIBONUCLEASE A                      
REMARK 900 RELATED ID: 1J7Z   RELATED DB: PDB                                   
REMARK 900 OSMOLYTE STABILIZATION OF RIBONUCLEASE                               
REMARK 900 RELATED ID: 1J80   RELATED DB: PDB                                   
REMARK 900 OSMOLYTE STABILIZATION OF RNASE                                      
REMARK 900 RELATED ID: 1J81   RELATED DB: PDB                                   
REMARK 900 OSMOLYTE STABILIZATION OF RNASE                                      
REMARK 900 RELATED ID: 1J82   RELATED DB: PDB                                   
REMARK 900 OSMOLYTE STABILIZATION OF RNASE                                      
REMARK 900 RELATED ID: 1JN4   RELATED DB: PDB                                   
REMARK 900 THE CRYSTAL STRUCTURE OF RIBONUCLEASE A IN COMPLEX WITH 2'-          
REMARK 900 DEOXYURIDINE 3'-PYROPHOSPHATE (P'-5') ADENOSINE                      
REMARK 900 RELATED ID: 1JS0   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF 3D DOMAIN-SWAPPED RNASE A MINOR TRIMER          
REMARK 900 RELATED ID: 1JVT   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A (LIGAND- FREE FORM)              
REMARK 900 RELATED ID: 1JVU   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A (COMPLEXED FORM)                 
REMARK 900 RELATED ID: 1JVV   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A (RETRO- SOAKED FORM)             
REMARK 900 RELATED ID: 1KF2   RELATED DB: PDB                                   
REMARK 900 ATOMIC RESOLUTION STRUCTURE OF RNASE A AT PH 5.2                     
REMARK 900 RELATED ID: 1KF3   RELATED DB: PDB                                   
REMARK 900 ATOMIC RESOLUTION STRUCTURE OF RNASE A AT PH 5.9                     
REMARK 900 RELATED ID: 1KF4   RELATED DB: PDB                                   
REMARK 900 ATOMIC RESOLUTION STRUCTURE OF RNASE A AT PH 6.3                     
REMARK 900 RELATED ID: 1KF5   RELATED DB: PDB                                   
REMARK 900 ATOMIC RESOLUTION STRUCTURE OF RNASE A AT PH 7.1                     
REMARK 900 RELATED ID: 1KF7   RELATED DB: PDB                                   
REMARK 900 ATOMIC RESOLUTION STRUCTURE OF RNASE A AT PH 8.0                     
REMARK 900 RELATED ID: 1KF8   RELATED DB: PDB                                   
REMARK 900 ATOMIC RESOLUTION STRUCTURE OF RNASE A AT PH 8.8                     
REMARK 900 RELATED ID: 1KH8   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF A CIS-PROLINE (P114) TO GLYCINE VARIANT OFRIBONUCLEASE  
REMARK 900 A                                                                    
REMARK 900 RELATED ID: 1LSQ   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A WITH ASN 67 REPLACED BY A BETA-ASPARTYL RESIDUE       
REMARK 900 RELATED ID: 1O0F   RELATED DB: PDB                                   
REMARK 900 RNASE A IN COMPLEX WITH 3',5'-ADP                                    
REMARK 900 RELATED ID: 1O0H   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A IN COMPLEX WITH 5'-ADP                                
REMARK 900 RELATED ID: 1O0M   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A IN COMPLEX WITH URIDINE-2'- PHOSPHATE                 
REMARK 900 RELATED ID: 1O0N   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A IN COMPLEX WITH URIDINE-3'- PHOSPHATE                 
REMARK 900 RELATED ID: 1O0O   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A IN COMPLEX WITH ADENOSINE-2 ',5'-DIPHOSPHATE          
REMARK 900 RELATED ID: 1QHC   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF RIBONUCLEASE A IN COMPLEX WITH 5'- PHOSPHO-2'-  
REMARK 900 DEOXYURIDINE-3 '-PYROPHOSPHATE ADENOSINE-3'- PHOSPHATE               
REMARK 900 RELATED ID: 1RAR   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A FLUORESCENT DERIVATIVE [RNASE 1 -124 (AENS-HIS -12)]  
REMARK 900 FROM NACL CRYSTAL                                                    
REMARK 900 RELATED ID: 1RAS   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A FLUORESCENT DERIVATIVE [RNASE 1 -124 (AENS-HIS-12)]   
REMARK 900 FROM AMMONIUM SULFATE CRYSTAL                                        
REMARK 900 RELATED ID: 1RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 98K                                                
REMARK 900 RELATED ID: 1RBB   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE B                                                       
REMARK 900 RELATED ID: 1RBC   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY ALA (M13A)             
REMARK 900 RELATED ID: 1RBD   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY ALPHA-AMINO-NORMAL-    
REMARK 900 BUTYRIC ACID (M13ABA)                                                
REMARK 900 RELATED ID: 1RBE   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY PHE (M13F)             
REMARK 900 RELATED ID: 1RBF   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY GLY (M13G)             
REMARK 900 RELATED ID: 1RBG   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY ILE (M13I)             
REMARK 900 RELATED ID: 1RBH   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY LEU (M13L)             
REMARK 900 RELATED ID: 1RBI   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET 13 REPLACED BY VAL (M13V)             
REMARK 900 RELATED ID: 1RBJ   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE B COMPLEX WITH D(TETRA-(DEOXY- ADENYLATE))              
REMARK 900 RELATED ID: 1RBN   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A DERIVATIVE II COMPLEXED WITH 6-CHLOROPURINE RIBOSIDE  
REMARK 900 5'-MONOPHOSPHATE                                                     
REMARK 900 RELATED ID: 1RBW   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A WITH GUANIDINIUM                                      
REMARK 900 RELATED ID: 1RBX   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A CONTROL                                               
REMARK 900 RELATED ID: 1RCA   RELATED DB: PDB                                   
REMARK 900 MOL_ID: 1; MOLECULE: RIBONUCLEASE A; CHAIN: NULL; SYNONYM: RNASE A;  
REMARK 900 EC: 3.1.27.5; HETEROGEN: DEOXYCYTIDYLYL-3',5'-GUANOSINE (3 ',5'-     
REMARK 900 DCPDG); OTHER_DETAILS: CO-CRYSTALLIZED COMPLEX                       
REMARK 900 RELATED ID: 1RCN   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEXED WITH DEOXYRIBONUCLEIC ACID (5'-D(APTPAPAP)- 
REMARK 900 3')                                                                  
REMARK 900 RELATED ID: 1RHA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (LOW HUMIDITY FORM: RELATIVE HUMIDITY 79 %)           
REMARK 900 RELATED ID: 1RHB   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (LOW HUMIDITY FORM: RELATIVE HUMIDITY 88 %)           
REMARK 900 RELATED ID: 1RNC   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEX WITH CYTIDYLYL-2',5 '-GUANOSINE (2',5'-CPG)   
REMARK 900 RELATED ID: 1RND   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEX WITH DEOXYCYTIDYLYL-3 ',5'-GUANOSINE (3',5'-  
REMARK 900 DCPDG)                                                               
REMARK 900 RELATED ID: 1RNM   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEX WITH CYTIDYLIC ACID ( 5'CMP) CRYSTALLIZED     
REMARK 900 FROM 80% AMMONIUM SULPHATE                                           
REMARK 900 RELATED ID: 1RNN   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEX WITH CYTIDYLIC ACID ( 5'CMP) CRYSTALLIZED     
REMARK 900 FROM 8M SODIUM FORMATE                                               
REMARK 900 RELATED ID: 1RNO   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A CRYSTALLIZED FROM 80% AMMONIUM SULPHATE               
REMARK 900 RELATED ID: 1RNQ   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A CRYSTALLIZED FROM 8M SODIUM FORMATE                   
REMARK 900 RELATED ID: 1RNU   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S (PH 5.5)                                              
REMARK 900 RELATED ID: 1RNV   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S (PH 4.75)                                             
REMARK 900 RELATED ID: 1RNW   RELATED DB: PDB                                   
REMARK 900 RECOMBINANT RIBONUCLEASE A CRYSTALLIZED FROM 80% AMMONIUM SULPHATE   
REMARK 900 RELATED ID: 1RNX   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A CRYSTALLIZED FROM 3M SODIUM CHLORIDE, 30% AMMONIUM    
REMARK 900 SULFATE                                                              
REMARK 900 RELATED ID: 1RNY   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A CRYSTALLIZED FROM 3M CESIUM CHLORIDE, 30% AMMONIUM    
REMARK 900 SULFATE                                                              
REMARK 900 RELATED ID: 1RNZ   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A CRYSTALLIZED FROM 2.5M SODIUM CHLORIDE, 3.3M SODIUM   
REMARK 900 FORMATE                                                              
REMARK 900 RELATED ID: 1ROB   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEXED WITH CYTIDYLIC ACID                         
REMARK 900 RELATED ID: 1RPF   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEXED WITH CYTIDINE-3'- MONOPHOSPHATE (RNASE A/3' 
REMARK 900 -CMP)                                                                
REMARK 900 RELATED ID: 1RPG   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEXED WITH DEOXYCYTIDYL-3 ',5'-DEOXYADENOSINE     
REMARK 900 (RNASE A/D(CPA)                                                      
REMARK 900 RELATED ID: 1RPH   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A                                                       
REMARK 900 RELATED ID: 1RSM   RELATED DB: PDB                                   
REMARK 900 LYS-7-(DINITROPHENYLENE)-LYS-41 CROSS-LINKED RIBONUCLEASE A          
REMARK 900 RELATED ID: 1RTA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEX WITH THYMIDYLIC ACID TETRAMER                 
REMARK 900 RELATED ID: 1RTB   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (RNASE A)                                             
REMARK 900 RELATED ID: 1RUV   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A-URIDINE VANADATE COMPLEX: HIGH RESOLUTION RESOLUTION  
REMARK 900 X-RAY STRUCTURE (1.3 A)                                              
REMARK 900 RELATED ID: 1SRN   RELATED DB: PDB                                   
REMARK 900 SEMISYNTHETIC RIBONUCLEASE A (RNASE 1-118( COLON)111-124)            
REMARK 900 RELATED ID: 1SSA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (RESIDUES 1 - 118) COMPLEXED WITH SYNTHETIC           
REMARK 900 RIBONUCLEASE A (RESIDUES 111 - 124, PHE 120 REPLACED BY LEU (F120L)) 
REMARK 900 RELATED ID: 1SSB   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (RESIDUES 1 - 118) COMPLEXED WITH SYNTHETIC           
REMARK 900 RIBONUCLEASE A (RESIDUES 111 - 124, PHE 120 REPLACED BY TYR (F120Y)) 
REMARK 900 RELATED ID: 1SSC   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (SEMISYNTHETIC) CRYSTALLIZED FROM AQUEOUS ETHANOL     
REMARK 900 [RNASE 1-118:111-124]                                                
REMARK 900 RELATED ID: 1UN5   RELATED DB: PDB                                   
REMARK 900 ARH-II, AN ANGIOGENIN/RNASE A CHIMERA                                
REMARK 900 RELATED ID: 1W4O   RELATED DB: PDB                                   
REMARK 900 BINDING OF NONNATURAL 3'-NUCLEOTIDES TO RIBONUCLEASE A               
REMARK 900 RELATED ID: 1W4P   RELATED DB: PDB                                   
REMARK 900 BINDING OF NONNATURAL 3'-NUCLEOTIDES TO RIBONUCLEASE A               
REMARK 900 RELATED ID: 1W4Q   RELATED DB: PDB                                   
REMARK 900 BINDING OF NONNATURAL 3'-NUCLEOTIDES TO RIBONUCLEASE A               
REMARK 900 RELATED ID: 1WBU   RELATED DB: PDB                                   
REMARK 900 FRAGMENT BASED LEAD DISCOVERY USING CRYSTALLOGRAPHY                  
REMARK 900 RELATED ID: 1XPS   RELATED DB: PDB                                   
REMARK 900 BOVINE RIBONUCLEASE A (PHOSPHATE-FREE) (93 % HUMIDITY)               
REMARK 900 RELATED ID: 1XPT   RELATED DB: PDB                                   
REMARK 900 BOVINE RIBONUCLEASE A (PHOSPHATE-FREE)                               
REMARK 900 RELATED ID: 2AAS   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (NMR, 32 STRUCTURES)                                  
REMARK 900 RELATED ID: 2RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 130K                                               
REMARK 900 RELATED ID: 2RLN   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S MUTANT WITH MET S 13 REPLACED BY NORLEUCINE (M(S 13)  
REMARK 900 NLE)                                                                 
REMARK 900 RELATED ID: 2RNS   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE S (PH 4.75)                                             
REMARK 900 RELATED ID: 3RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 160K                                               
REMARK 900 RELATED ID: 3RN3   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A                                                       
REMARK 900 RELATED ID: 3RSD   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE D121N VARIANT OF RIBONUCLEASE A                     
REMARK 900 RELATED ID: 3RSK   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE K7A/R10A/K66A VARIANT OF RIBONUCLEASE A             
REMARK 900 RELATED ID: 3RSP   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE P93G VARIANT OF RIBONUCLEASE A                      
REMARK 900 RELATED ID: 3SRN   RELATED DB: PDB                                   
REMARK 900 SEMISYNTHETIC RIBONUCLEASE A MUTANT WITH ASP 121 REPLACED BY ASN     
REMARK 900 (D121N) (RNASE 1-118: 111-124 (D121N))                               
REMARK 900 RELATED ID: 4RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 180K                                               
REMARK 900 RELATED ID: 4RSD   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE D121A VARIANT OF RIBONUCLEASE A                     
REMARK 900 RELATED ID: 4RSK   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE K7A/R10A/K66A VARIANT OF RIBONUCLEASE A COMPLEXED   
REMARK 900 WITH 3'-UMP                                                          
REMARK 900 RELATED ID: 4SRN   RELATED DB: PDB                                   
REMARK 900 SEMISYNTHETIC RIBONUCLEASE A MUTANT WITH ASP 121 REPLACED BY ALA     
REMARK 900 (D121A) (RNASE 1-118: 111-124 (D121A))                               
REMARK 900 RELATED ID: 5RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 220K                                               
REMARK 900 RELATED ID: 5RSA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (JOINT NEUTRON AND X-RAY)                             
REMARK 900 RELATED ID: 6RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 240K                                               
REMARK 900 RELATED ID: 6RSA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A COMPLEX WITH URIDINE VANADATE (JOINT NEUTRON AND X-   
REMARK 900 RAY)                                                                 
REMARK 900 RELATED ID: 7RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 260K                                               
REMARK 900 RELATED ID: 7RSA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (PHOSPHATE-FREE)                                      
REMARK 900 RELATED ID: 8RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 300K                                               
REMARK 900 RELATED ID: 8RSA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (PHOSPHATE-FREE) COMPLEX WITH N==E2.12==-N-ACETYL     
REMARK 900 DEOXYTHYMIDINE                                                       
REMARK 900 RELATED ID: 9RAT   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A AT 320K                                               
REMARK 900 RELATED ID: 9RSA   RELATED DB: PDB                                   
REMARK 900 RIBONUCLEASE A (PHOSPHATE-FREE) COMPLEX WITH N==D1.119==-N-ACETYL    
REMARK 900 DEOXYURIDINE                                                         
DBREF  2BLP A    1   124  UNP    P61823   RNAS1_BOVIN     27    150             
SEQRES   1 A  124  LYS GLU THR ALA ALA ALA LYS PHE GLU ARG GLN HIS MET          
SEQRES   2 A  124  ASP SER SER THR SER ALA ALA SER SER SER ASN TYR CYS          
SEQRES   3 A  124  ASN GLN MET MET LYS SER ARG ASN LEU THR LYS ASP ARG          
SEQRES   4 A  124  CYS LYS PRO VAL ASN THR PHE VAL HIS GLU SER LEU ALA          
SEQRES   5 A  124  ASP VAL GLN ALA VAL CYS SER GLN LYS ASN VAL ALA CYS          
SEQRES   6 A  124  LYS ASN GLY GLN THR ASN CYS TYR GLN SER TYR SER THR          
SEQRES   7 A  124  MET SER ILE THR ASP CYS ARG GLU THR GLY SER SER LYS          
SEQRES   8 A  124  TYR PRO ASN CYS ALA TYR LYS THR THR GLN ALA ASN LYS          
SEQRES   9 A  124  HIS ILE ILE VAL ALA CYS GLU GLY ASN PRO TYR VAL PRO          
SEQRES  10 A  124  VAL HIS PHE ASP ALA SER VAL                                  
HET     CL  A1125       1                                                       
HETNAM      CL CHLORIDE ION                                                     
FORMUL   2   CL    CL 1-                                                        
FORMUL   3  HOH   *143(H2 O)                                                    
HELIX    1   1 THR A    3  MET A   13  1                                  11    
HELIX    2   2 ASN A   24  ARG A   33  1                                  10    
HELIX    3   3 SER A   50  VAL A   57  1                                   8    
HELIX    4   4 CYS A   58  GLN A   60  5                                   3    
SHEET    1  AA 5 VAL A  43  VAL A  47  0                                        
SHEET    2  AA 5 MET A  79  GLU A  86 -1  O  THR A  82   N  PHE A  46           
SHEET    3  AA 5 TYR A  97  GLU A 111 -1  O  LYS A  98   N  ARG A  85           
SHEET    4  AA 5 CYS A  72  GLN A  74 -1  O  TYR A  73   N  VAL A 108           
SHEET    5  AA 5 LYS A  61  VAL A  63 -1  O  LYS A  61   N  GLN A  74           
SHEET    1  AB 4 VAL A  43  VAL A  47  0                                        
SHEET    2  AB 4 MET A  79  GLU A  86 -1  O  THR A  82   N  PHE A  46           
SHEET    3  AB 4 TYR A  97  GLU A 111 -1  O  LYS A  98   N  ARG A  85           
SHEET    4  AB 4 VAL A 116  VAL A 124 -1  O  VAL A 116   N  GLU A 111           
SSBOND   1 CYS A   26    CYS A   84                          1555   1555  2.03  
SSBOND   2 CYS A   40    CYS A   95                          1555   1555  2.05  
SSBOND   3 CYS A   58    CYS A  110                          1555   1555  2.07  
SSBOND   4 CYS A   65    CYS A   72                          1555   1555  2.05  
CISPEP   1 TYR A   92    PRO A   93          0         5.70                     
CISPEP   2 ASN A  113    PRO A  114          0         3.72                     
SITE     1 AC1  3 HIS A  12  ASN A  44  THR A  45                               
CRYST1   64.132   64.132   63.643  90.00  90.00 120.00 P 32 2 1      6          
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      0.015593  0.009003  0.000000        0.00000                         
SCALE2      0.000000  0.018005  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015713        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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