PDB Short entry for 3RTJ
HEADER    HYDROLASE/RNA                           03-MAY-11   3RTJ              
TITLE     CRYSTAL STRUCTURE OF RICIN BOUND WITH DINUCLEOTIDE APG                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RNA (5'-R(*AP*G)-3');                                      
COMPND   3 CHAIN: D;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: RICIN A CHAIN;                                             
COMPND   7 CHAIN: A;                                                            
COMPND   8 SYNONYM: RICIN A CHAIN, RRNA N-GLYCOSIDASE, LINKER PEPTIDE, RICIN B  
COMPND   9 CHAIN;                                                               
COMPND  10 EC: 3.2.2.22;                                                        
COMPND  11 MOL_ID: 3;                                                           
COMPND  12 MOLECULE: RICIN B CHAIN;                                             
COMPND  13 CHAIN: B;                                                            
COMPND  14 SYNONYM: RICIN A CHAIN, RRNA N-GLYCOSIDASE, LINKER PEPTIDE, RICIN B  
COMPND  15 CHAIN;                                                               
COMPND  16 EC: 3.2.2.22                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 ORGANISM_SCIENTIFIC: RICINUS COMMUNIS;                               
SOURCE   5 ORGANISM_COMMON: CASTOR BEAN;                                        
SOURCE   6 ORGANISM_TAXID: 3988;                                                
SOURCE   7 OTHER_DETAILS: SEED;                                                 
SOURCE   8 MOL_ID: 3;                                                           
SOURCE   9 ORGANISM_SCIENTIFIC: RICINUS COMMUNIS;                               
SOURCE  10 ORGANISM_COMMON: CASTOR BEAN;                                        
SOURCE  11 ORGANISM_TAXID: 3988;                                                
SOURCE  12 OTHER_DETAILS: SEED                                                  
KEYWDS    ENZYME-SUBSTRATE COMPLEX, GLYCOSIDASE RIBOSOME-INACTIVATING PROTEIN   
KEYWDS   2 LECTIN GLYCOPROTEIN, LACTOSE BINDING, GLYCOSYLATION, HYDROLASE,      
KEYWDS   3 HYDROLASE-RNA COMPLEX                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.F.MONZINGO,J.D.ROBERTUS                                             
REVDAT   2   29-JUL-20 3RTJ    1       COMPND REMARK HETNAM LINK                
REVDAT   2 2                   1       SITE   ATOM                              
REVDAT   1   31-AUG-11 3RTJ    0                                                
SPRSDE     31-AUG-11 3RTJ      1APG                                             
JRNL        AUTH   A.F.MONZINGO,J.D.ROBERTUS                                    
JRNL        TITL   X-RAY ANALYSIS OF SUBSTRATE ANALOGS IN THE RICIN A-CHAIN     
JRNL        TITL 2 ACTIVE SITE.                                                 
JRNL        REF    J.MOL.BIOL.                   V. 227  1136 1992              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   1433290                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR                                               
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.91                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 8250                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.198                           
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4045                                    
REMARK   3   NUCLEIC ACID ATOMS       : 42                                      
REMARK   3   HETEROGEN ATOMS          : 102                                     
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED 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  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.014                           
REMARK   3   BOND ANGLES            (DEGREES) : 4.000                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : 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  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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3RTJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-MAY-11.                  
REMARK 100 THE DEPOSITION ID IS D_1000065358.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-JUN-91                          
REMARK 200  TEMPERATURE           (KELVIN) : 298                                
REMARK 200  PH                             : 4.75                               
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          : ELLIOTT GX-20                      
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : SAN DIEGO MULTIWIRE SYSTEMS        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : SAN DIEGO MULTIWIRE SYSTEMS        
REMARK 200  DATA SCALING SOFTWARE          : SAN DIEGO MULTIWIRE SYSTEMS        
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 8250                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.11                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.74                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 11.5% PEG 8000, 0.05 M SODIUM ACETATE,   
REMARK 280  2 MM LACTOSE, PH 4.75, BATCH, TEMPERATURE 298K                      
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       36.37000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       57.17000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       39.24500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       57.17000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       36.37000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       39.24500            
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: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, A, B, C, E, F, G                   
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     ILE A     1                                                      
REMARK 465     PHE A     2                                                      
REMARK 465     PRO A     3                                                      
REMARK 465     LYS A     4                                                      
REMARK 465     PRO A   263                                                      
REMARK 465     SER A   264                                                      
REMARK 465     SER A   265                                                      
REMARK 465     GLN A   266                                                      
REMARK 465     PHE A   267                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLN A  98    CG   CD   OE1  NE2                                  
REMARK 470     GLU A  99    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 102    CG   CD   OE1  OE2                                  
REMARK 470     GLN A 112    CG   CD   OE1  NE2                                  
REMARK 470     ASN B 155    CG   OD1  ND2                                       
REMARK 470     SER B 165    OG                                                  
REMARK 470     GLU B 170    CG   CD   OE1  OE2                                  
REMARK 470     GLN B 172    CG   CD   OE1  NE2                                  
REMARK 470     SER B 195    OG                                                  
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      A D 701   N9  -  C1' -  C2' ANGL. DEV. =   9.5 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    ALA A  14      -77.79    -60.49                                   
REMARK 500    PRO A  46      151.29    -49.92                                   
REMARK 500    ILE A  53       -6.04    -45.84                                   
REMARK 500    ASN A  64     -169.86   -112.58                                   
REMARK 500    ALA A  66        5.86    -69.82                                   
REMARK 500    VAL A 111      140.05    -26.03                                   
REMARK 500    ASN A 122      151.91    -42.72                                   
REMARK 500    ASP B   2     -164.05     64.92                                   
REMARK 500    ARG B  16      130.40    -37.63                                   
REMARK 500    ASN B  17       18.78     56.71                                   
REMARK 500    ARG B  24      129.32    -39.41                                   
REMARK 500    ASP B  25       24.75     49.39                                   
REMARK 500    ASN B  30      109.12    -52.72                                   
REMARK 500    ASN B  42     -155.38   -178.12                                   
REMARK 500    ASP B  44      106.34    -55.93                                   
REMARK 500    ALA B  45       -9.01    -53.20                                   
REMARK 500    ASN B  55       27.74     86.23                                   
REMARK 500    TYR B  69       47.94   -103.95                                   
REMARK 500    PRO B  71      103.08    -56.85                                   
REMARK 500    THR B  85      -71.43    -46.80                                   
REMARK 500    ASP B  86       25.36    -72.19                                   
REMARK 500    ASN B  95       38.92    -99.36                                   
REMARK 500    ARG B 102      -32.82    145.39                                   
REMARK 500    THR B 110       35.25    -73.74                                   
REMARK 500    SER B 111      134.74   -175.49                                   
REMARK 500    ILE B 124       23.05   -140.06                                   
REMARK 500    TYR B 125       57.48     39.81                                   
REMARK 500    LEU B 147      131.10    -33.89                                   
REMARK 500    TYR B 148       16.98     59.73                                   
REMARK 500    SER B 156     -109.77     70.03                                   
REMARK 500    SER B 166       42.99    -63.15                                   
REMARK 500    GLU B 167      -25.32   -176.27                                   
REMARK 500    LYS B 168      173.89    -37.73                                   
REMARK 500    ALA B 169       66.12    -47.84                                   
REMARK 500    GLU B 170       93.45     47.20                                   
REMARK 500    ARG B 187        1.09    -63.61                                   
REMARK 500    ARG B 198       19.27    -47.90                                   
REMARK 500    GLU B 199       14.03   -177.87                                   
REMARK 500    SER B 238       39.46     26.87                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500      A D 701         0.07    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2AAI   RELATED DB: PDB                                   
REMARK 900 NATIVE STRUCTURE OF RICIN                                            
REMARK 900 RELATED ID: 3RTI   RELATED DB: PDB                                   
REMARK 900 RICIN BOUND WITH FORMYCIN MONOPHOSPHATE                              
DBREF  3RTJ A    1   267  UNP    P02879   RICI_RICCO      36    302             
DBREF  3RTJ B    1   262  UNP    P02879   RICI_RICCO     315    576             
DBREF  3RTJ D  701   702  PDB    3RTJ     3RTJ           701    702             
SEQRES   1 D    2    A   G                                                      
SEQRES   1 A  267  ILE PHE PRO LYS GLN TYR PRO ILE ILE ASN PHE THR THR          
SEQRES   2 A  267  ALA GLY ALA THR VAL GLN SER TYR THR ASN PHE ILE ARG          
SEQRES   3 A  267  ALA VAL ARG GLY ARG LEU THR THR GLY ALA ASP VAL ARG          
SEQRES   4 A  267  HIS GLU ILE PRO VAL LEU PRO ASN ARG VAL GLY LEU PRO          
SEQRES   5 A  267  ILE ASN GLN ARG PHE ILE LEU VAL GLU LEU SER ASN HIS          
SEQRES   6 A  267  ALA GLU LEU SER VAL THR LEU ALA LEU ASP VAL THR ASN          
SEQRES   7 A  267  ALA TYR VAL VAL GLY TYR ARG ALA GLY ASN SER ALA TYR          
SEQRES   8 A  267  PHE PHE HIS PRO ASP ASN GLN GLU ASP ALA GLU ALA ILE          
SEQRES   9 A  267  THR HIS LEU PHE THR ASP VAL GLN ASN ARG TYR THR PHE          
SEQRES  10 A  267  ALA PHE GLY GLY ASN TYR ASP ARG LEU GLU GLN LEU ALA          
SEQRES  11 A  267  GLY ASN LEU ARG GLU ASN ILE GLU LEU GLY ASN GLY PRO          
SEQRES  12 A  267  LEU GLU GLU ALA ILE SER ALA LEU TYR TYR TYR SER THR          
SEQRES  13 A  267  GLY GLY THR GLN LEU PRO THR LEU ALA ARG SER PHE ILE          
SEQRES  14 A  267  ILE CYS ILE GLN MET ILE SER GLU ALA ALA ARG PHE GLN          
SEQRES  15 A  267  TYR ILE GLU GLY GLU MET ARG THR ARG ILE ARG TYR ASN          
SEQRES  16 A  267  ARG ARG SER ALA PRO ASP PRO SER VAL ILE THR LEU GLU          
SEQRES  17 A  267  ASN SER TRP GLY ARG LEU SER THR ALA ILE GLN GLU SER          
SEQRES  18 A  267  ASN GLN GLY ALA PHE ALA SER PRO ILE GLN LEU GLN ARG          
SEQRES  19 A  267  ARG ASN GLY SER LYS PHE SER VAL TYR ASP VAL SER ILE          
SEQRES  20 A  267  LEU ILE PRO ILE ILE ALA LEU MET VAL TYR ARG CYS ALA          
SEQRES  21 A  267  PRO PRO PRO SER SER GLN PHE                                  
SEQRES   1 B  262  ALA ASP VAL CYS MET ASP PRO GLU PRO ILE VAL ARG ILE          
SEQRES   2 B  262  VAL GLY ARG ASN GLY LEU CYS VAL ASP VAL ARG ASP GLY          
SEQRES   3 B  262  ARG PHE HIS ASN GLY ASN ALA ILE GLN LEU TRP PRO CYS          
SEQRES   4 B  262  LYS SER ASN THR ASP ALA ASN GLN LEU TRP THR LEU LYS          
SEQRES   5 B  262  ARG ASP ASN THR ILE ARG SER ASN GLY LYS CYS LEU THR          
SEQRES   6 B  262  THR TYR GLY TYR SER PRO GLY VAL TYR VAL MET ILE TYR          
SEQRES   7 B  262  ASP CYS ASN THR ALA ALA THR ASP ALA THR ARG TRP GLN          
SEQRES   8 B  262  ILE TRP ASP ASN GLY THR ILE ILE ASN PRO ARG SER SER          
SEQRES   9 B  262  LEU VAL LEU ALA ALA THR SER GLY ASN SER GLY THR THR          
SEQRES  10 B  262  LEU THR VAL GLN THR ASN ILE TYR ALA VAL SER GLN GLY          
SEQRES  11 B  262  TRP LEU PRO THR ASN ASN THR GLN PRO PHE VAL THR THR          
SEQRES  12 B  262  ILE VAL GLY LEU TYR GLY LEU CYS LEU GLN ALA ASN SER          
SEQRES  13 B  262  GLY GLN VAL TRP ILE GLU ASP CYS SER SER GLU LYS ALA          
SEQRES  14 B  262  GLU GLN GLN TRP ALA LEU TYR ALA ASP GLY SER ILE ARG          
SEQRES  15 B  262  PRO GLN GLN ASN ARG ASP ASN CYS LEU THR SER ASP SER          
SEQRES  16 B  262  ASN ILE ARG GLU THR VAL VAL LYS ILE LEU SER CYS GLY          
SEQRES  17 B  262  PRO ALA SER SER GLY GLN ARG TRP MET PHE LYS ASN ASP          
SEQRES  18 B  262  GLY THR ILE LEU ASN LEU TYR SER GLY LEU VAL LEU ASP          
SEQRES  19 B  262  VAL ARG ALA SER ASP PRO SER LEU LYS GLN ILE ILE LEU          
SEQRES  20 B  262  TYR PRO LEU HIS GLY ASP PRO ASN GLN ILE TRP LEU PRO          
SEQRES  21 B  262  LEU PHE                                                      
MODRES 3RTJ ASN B   95  ASN  GLYCOSYLATION SITE                                 
MODRES 3RTJ ASN B  135  ASN  GLYCOSYLATION SITE                                 
HET    BGC  C   1      12                                                       
HET    GAL  C   2      11                                                       
HET    BGC  E   1      12                                                       
HET    GAL  E   2      11                                                       
HET    NAG  F   1      14                                                       
HET    NAG  F   2      14                                                       
HET    NAG  G   1      14                                                       
HET    NAG  G   2      14                                                       
HETNAM     BGC BETA-D-GLUCOPYRANOSE                                             
HETNAM     GAL BETA-D-GALACTOPYRANOSE                                           
HETNAM     NAG 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE                         
FORMUL   4  BGC    2(C6 H12 O6)                                                 
FORMUL   4  GAL    2(C6 H12 O6)                                                 
FORMUL   6  NAG    4(C8 H15 N O6)                                               
HELIX    1   1 THR A   17  THR A   33  1                                  17    
HELIX    2   2 ASN A   97  ILE A  104  1                                   8    
HELIX    3   3 THR A  105  LEU A  107  5                                   3    
HELIX    4   4 ASN A  122  GLY A  131  1                                  10    
HELIX    5   5 GLY A  140  TYR A  154  1                                  15    
HELIX    6   6 GLN A  160  PHE A  181  1                                  22    
HELIX    7   7 PHE A  181  TYR A  194  1                                  14    
HELIX    8   8 ASP A  201  SER A  210  1                                  10    
HELIX    9   9 SER A  210  GLU A  220  1                                  11    
HELIX   10  10 GLY B   15  LEU B   19  5                                   5    
HELIX   11  11 ASP B   25  ARG B   27  5                                   3    
HELIX   12  12 ALA B   84  THR B   88  5                                   5    
HELIX   13  13 ALA B  126  GLY B  130  5                                   5    
HELIX   14  14 GLY B  146  LEU B  150  5                                   5    
HELIX   15  15 ALA B  237  LYS B  243  5                                   7    
HELIX   16  16 ASP B  253  ILE B  257  5                                   5    
SHEET    1   A 6 ILE A   8  THR A  12  0                                        
SHEET    2   A 6 PHE A  57  SER A  63  1  O  GLU A  61   N  ILE A   9           
SHEET    3   A 6 SER A  69  ASP A  75 -1  O  LEU A  72   N  VAL A  60           
SHEET    4   A 6 VAL A  81  ALA A  86 -1  O  ARG A  85   N  THR A  71           
SHEET    5   A 6 SER A  89  PHE A  92 -1  O  TYR A  91   N  TYR A  84           
SHEET    6   A 6 ASN A 113  THR A 116  1  O  TYR A 115   N  ALA A  90           
SHEET    1   B 2 VAL A  38  ARG A  39  0                                        
SHEET    2   B 2 ILE A  42  PRO A  43 -1  O  ILE A  42   N  ARG A  39           
SHEET    1   C 2 ALA A 225  GLN A 233  0                                        
SHEET    2   C 2 LYS A 239  ASP A 244 -1  O  TYR A 243   N  PHE A 226           
SHEET    1   D 5 ILE B  10  VAL B  11  0                                        
SHEET    2   D 5 TRP B  49  LEU B  51 -1  O  TRP B  49   N  VAL B  11           
SHEET    3   D 5 ILE B  57  SER B  59 -1  O  ARG B  58   N  THR B  50           
SHEET    4   D 5 LYS B  62  THR B  66 -1  O  LEU B  64   N  ILE B  57           
SHEET    5   D 5 VAL B  75  TYR B  78 -1  O  MET B  76   N  THR B  65           
SHEET    1   E 2 ILE B  13  VAL B  14  0                                        
SHEET    2   E 2 LEU B 132  PRO B 133 -1  O  LEU B 132   N  VAL B  14           
SHEET    1   F 2 CYS B  20  VAL B  23  0                                        
SHEET    2   F 2 ILE B  34  TRP B  37 -1  O  GLN B  35   N  ASP B  22           
SHEET    1   G 2 GLN B  91  ILE B  92  0                                        
SHEET    2   G 2 ILE B  98  ILE B  99 -1  O  ILE B  99   N  GLN B  91           
SHEET    1   H 2 LEU B 105  ALA B 108  0                                        
SHEET    2   H 2 THR B 119  THR B 122 -1  O  THR B 119   N  ALA B 108           
SHEET    1   I 4 ILE B 181  PRO B 183  0                                        
SHEET    2   I 4 GLN B 172  LEU B 175 -1  N  ALA B 174   O  ARG B 182           
SHEET    3   I 4 PHE B 140  VAL B 145 -1  N  THR B 142   O  TRP B 173           
SHEET    4   I 4 LEU B 259  LEU B 261 -1  O  LEU B 261   N  THR B 143           
SHEET    1   J 2 CYS B 151  ASN B 155  0                                        
SHEET    2   J 2 GLN B 158  GLU B 162 -1  O  TRP B 160   N  GLN B 153           
SHEET    1   K 2 ASN B 189  THR B 192  0                                        
SHEET    2   K 2 LYS B 203  SER B 206 -1  O  LYS B 203   N  THR B 192           
SHEET    1   L 2 MET B 217  PHE B 218  0                                        
SHEET    2   L 2 ILE B 224  LEU B 225 -1  O  LEU B 225   N  MET B 217           
SHEET    1   M 2 VAL B 232  VAL B 235  0                                        
SHEET    2   M 2 ILE B 245  TYR B 248 -1  O  ILE B 246   N  ASP B 234           
SSBOND   1 CYS A  259    CYS B    4                          1555   1555  2.03  
SSBOND   2 CYS B   20    CYS B   39                          1555   1555  2.03  
SSBOND   3 CYS B   63    CYS B   80                          1555   1555  2.03  
SSBOND   4 CYS B  151    CYS B  164                          1555   1555  2.02  
SSBOND   5 CYS B  190    CYS B  207                          1555   1555  2.03  
LINK         ND2 ASN B  95                 C1  NAG F   1     1555   1555  1.45  
LINK         ND2 ASN B 135                 C1  NAG G   1     1555   1555  1.45  
LINK         O4  BGC C   1                 C1  GAL C   2     1555   1555  1.39  
LINK         O4  BGC E   1                 C1  GAL E   2     1555   1555  1.39  
LINK         O4  NAG F   1                 C1  NAG F   2     1555   1555  1.40  
LINK         O4  NAG G   1                 C1  NAG G   2     1555   1555  1.39  
CRYST1   72.740   78.490  114.340  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      0.013748  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.012740  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008746        0.00000