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Database: PDB
Entry: 3NZC
LinkDB: 3NZC
Original site: 3NZC 
HEADER    OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR 16-JUL-10   3NZC              
TITLE     STRUCTURAL ANALYSIS OF PNEUMOCYSTIS CARINII AND HUMAN DHFR COMPLEXES  
TITLE    2 WITH NADPH AND A SERIES OF FIVE POTENT 5-(OMEGA-CARBOXY(ALKYLOXY)    
TITLE    3 PYRIDO[2,3-D]PYRIDINE DERIVATIVEA                                    
CAVEAT     3NZC    C-N BOND DISTANCES BETWEEN RESIDUES GLN 4 AND LYS 5 AND      
CAVEAT   2 3NZC    BETWEEN RESIDUES ILE 92 AND HIS 93 ARE OUTSIDE OF THE        
CAVEAT   3 3NZC    ACCEPTED RANGE FOR THE PEPTIDE BOND                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DIHYDROFOLATE REDUCTASE;                                   
COMPND   3 CHAIN: X;                                                            
COMPND   4 EC: 1.5.1.3;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PNEUMOCYSTIS CARINII;                           
SOURCE   3 ORGANISM_TAXID: 4754;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)                                  
KEYWDS    PNEUMOCYSTIS CARINII DHFR INHIBITOR COMPLEXES, OXIDOREDUCTASE,        
KEYWDS   2 OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR COMPLEX                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.CODY                                                                
REVDAT   4   06-SEP-23 3NZC    1       REMARK                                   
REVDAT   3   08-NOV-17 3NZC    1       REMARK                                   
REVDAT   2   12-JAN-11 3NZC    1       DBREF  JRNL                              
REVDAT   1   29-DEC-10 3NZC    0                                                
JRNL        AUTH   V.CODY,J.PACE                                                
JRNL        TITL   STRUCTURAL ANALYSIS OF PNEUMOCYSTIS CARINII AND HUMAN DHFR   
JRNL        TITL 2 COMPLEXES WITH NADPH AND A SERIES OF FIVE POTENT             
JRNL        TITL 3 6-[5'-([OMEGA]-CARBOXYALKOXY)BENZYL]PYRIDO[2,3-D]PYRIMIDINE  
JRNL        TITL 4 DERIVATIVES                                                  
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  67     1 2011              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   21206056                                                     
JRNL        DOI    10.1107/S0907444910041004                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0088                                      
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) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.51                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 11845                          
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) : 0.212                           
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.260                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 636                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 915                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.69                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2170                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 40                           
REMARK   3   BIN FREE R VALUE                    : 0.3020                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1686                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 48                                      
REMARK   3   SOLVENT ATOMS            : 48                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 31.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.20                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.03000                                              
REMARK   3    B22 (A**2) : -0.07000                                             
REMARK   3    B33 (A**2) : 0.04000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.200         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.141         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.917         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.949                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.929                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1656 ; 0.023 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2235 ; 2.124 ; 1.970       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   190 ; 9.300 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    71 ;31.629 ;22.676       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   299 ;19.205 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    11 ;21.127 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   237 ; 0.178 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1226 ; 0.010 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):   956 ; 1.418 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1554 ; 2.462 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   700 ; 3.333 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   681 ; 5.094 ; 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 : 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                                                           
REMARK   4                                                                      
REMARK   4 3NZC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-JUL-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000060468.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 06-JUN-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 200                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL11-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.975                              
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 325 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 16731                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.8                               
REMARK 200  DATA REDUNDANCY                : 4.900                              
REMARK 200  R MERGE                    (I) : 0.06000                            
REMARK 200  R SYM                      (I) : 0.06500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 0.0730                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.86                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 83.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.30                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.34000                            
REMARK 200  R SYM FOR SHELL            (I) : 0.41000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 3CD2                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 37.36                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.96                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 30-36% PEG 2K, 46-52 MM MES, 100 MM      
REMARK 280  KCL, PH 6.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 273K        
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       21.33350            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: X                                     
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 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     MET X     1                                                      
REMARK 475     ASN X     2                                                      
REMARK 475     GLN X     3                                                      
REMARK 475     GLN X     4                                                      
REMARK 475     ASN X    83                                                      
REMARK 475     GLU X    84                                                      
REMARK 475     SER X    85                                                      
REMARK 475     LEU X    86                                                      
REMARK 475     ASP X    87                                                      
REMARK 475     LEU X    88                                                      
REMARK 475     GLY X    89                                                      
REMARK 475     ASN X    90                                                      
REMARK 475     GLY X    91                                                      
REMARK 475     ILE X    92                                                      
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    ILE X    92     N    HIS X    93              1.51            
REMARK 500   OE2  GLU X   103     NH2  ARG X   107              1.78            
REMARK 500   CA   GLY X   125     O3   PO4 X   208              1.98            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLN X   4   C     LYS X   5   N      -0.256                       
REMARK 500    ILE X  92   C     HIS X  93   N      -0.500                       
REMARK 500    PHE X 156   CE1   PHE X 156   CZ      0.119                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    LEU X   9   CB  -  CG  -  CD1 ANGL. DEV. = -10.3 DEGREES          
REMARK 500    ARG X  82   O   -  C   -  N   ANGL. DEV. = -11.5 DEGREES          
REMARK 500    ILE X  92   CA  -  C   -  N   ANGL. DEV. =  26.5 DEGREES          
REMARK 500    ILE X  92   O   -  C   -  N   ANGL. DEV. = -32.3 DEGREES          
REMARK 500    HIS X  93   C   -  N   -  CA  ANGL. DEV. =  39.6 DEGREES          
REMARK 500    LEU X 128   CB  -  CG  -  CD2 ANGL. DEV. =  10.3 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    ASN X   2      -30.19    150.10                                   
REMARK 500    GLN X   3       56.32   -119.16                                   
REMARK 500    ARG X  21      -98.20   -123.93                                   
REMARK 500    ASN X  23       23.86     90.98                                   
REMARK 500    PRO X  26       44.24    -79.10                                   
REMARK 500    LEU X  67      -36.21    -36.27                                   
REMARK 500    ARG X  82       19.63    -67.20                                   
REMARK 500    GLU X  84       94.86    -41.67                                   
REMARK 500    SER X  85     -100.16    -53.81                                   
REMARK 500    LEU X  86     -148.93   -128.04                                   
REMARK 500    ASP X  87       -8.67   -176.05                                   
REMARK 500    LEU X  88     -116.50     38.62                                   
REMARK 500    ASN X  90       77.30    -51.71                                   
REMARK 500    HIS X  93      120.57   -174.78                                   
REMARK 500    ASN X 118      -89.73    -89.39                                   
REMARK 500    ASP X 193       58.12     33.85                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 PRO X   44     THR X   45                 -149.71                    
REMARK 500 GLY X   91     ILE X   92                 -149.35                    
REMARK 500 ILE X   92     HIS X   93                  -61.13                    
REMARK 500 GLY X  124     GLY X  125                 -116.10                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    ARG X  82        -15.48                                           
REMARK 500    ILE X  92        -11.58                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE D2O X 207                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 X 208                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL X 209                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL X 210                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3NXO   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NXR   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NXT   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NXV   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NXX   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NXY   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NZ6   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NZ9   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NZA   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NZB   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3NZD   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2FZH   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2FZI   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2FZJ   RELATED DB: PDB                                   
DBREF  3NZC X    1   206  UNP    P16184   DYR_PNECA        1    206             
SEQRES   1 X  206  MET ASN GLN GLN LYS SER LEU THR LEU ILE VAL ALA LEU          
SEQRES   2 X  206  THR THR SER TYR GLY ILE GLY ARG SER ASN SER LEU PRO          
SEQRES   3 X  206  TRP LYS LEU LYS LYS GLU ILE SER TYR PHE LYS ARG VAL          
SEQRES   4 X  206  THR SER PHE VAL PRO THR PHE ASP SER PHE GLU SER MET          
SEQRES   5 X  206  ASN VAL VAL LEU MET GLY ARG LYS THR TRP GLU SER ILE          
SEQRES   6 X  206  PRO LEU GLN PHE ARG PRO LEU LYS GLY ARG ILE ASN VAL          
SEQRES   7 X  206  VAL ILE THR ARG ASN GLU SER LEU ASP LEU GLY ASN GLY          
SEQRES   8 X  206  ILE HIS SER ALA LYS SER LEU ASP HIS ALA LEU GLU LEU          
SEQRES   9 X  206  LEU TYR ARG THR TYR GLY SER GLU SER SER VAL GLN ILE          
SEQRES  10 X  206  ASN ARG ILE PHE VAL ILE GLY GLY ALA GLN LEU TYR LYS          
SEQRES  11 X  206  ALA ALA MET ASP HIS PRO LYS LEU ASP ARG ILE MET ALA          
SEQRES  12 X  206  THR ILE ILE TYR LYS ASP ILE HIS CYS ASP VAL PHE PHE          
SEQRES  13 X  206  PRO LEU LYS PHE ARG ASP LYS GLU TRP SER SER VAL TRP          
SEQRES  14 X  206  LYS LYS GLU LYS HIS SER ASP LEU GLU SER TRP VAL GLY          
SEQRES  15 X  206  THR LYS VAL PRO HIS GLY LYS ILE ASN GLU ASP GLY PHE          
SEQRES  16 X  206  ASP TYR GLU PHE GLU MET TRP THR ARG ASP LEU                  
HET    D2O  X 207      31                                                       
HET    PO4  X 208       5                                                       
HET    GOL  X 209      14                                                       
HET    GOL  X 210      14                                                       
HETNAM     D2O 6-[2-METHOXY-5-(2-PHENYLETHOXY)BENZYL]-5-                        
HETNAM   2 D2O  METHYLPYRIDO[2,3-D]PYRIMIDINE-2,4-DIAMINE                       
HETNAM     PO4 PHOSPHATE ION                                                    
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   2  D2O    C24 H25 N5 O2                                                
FORMUL   3  PO4    O4 P 3-                                                      
FORMUL   4  GOL    2(C3 H8 O3)                                                  
FORMUL   6  HOH   *48(H2 O)                                                     
HELIX    1   1 LEU X   29  PHE X   42  1                                  14    
HELIX    2   2 PRO X   44  SER X   48  5                                   5    
HELIX    3   3 ARG X   59  ILE X   65  1                                   7    
HELIX    4   4 PRO X   66  ARG X   70  5                                   5    
HELIX    5   5 SER X   97  TYR X  109  1                                  13    
HELIX    6   6 GLY X  125  ASP X  134  1                                  10    
HELIX    7   7 ASP X  162  SER X  166  5                                   5    
HELIX    8   8 LYS X  173  GLY X  182  1                                  10    
SHEET    1   A 8 HIS X  93  ALA X  95  0                                        
SHEET    2   A 8 ILE X  76  ILE X  80  1  N  VAL X  79   O  HIS X  93           
SHEET    3   A 8 SER X  51  GLY X  58  1  N  ASN X  53   O  ILE X  76           
SHEET    4   A 8 GLN X 116  GLY X 124  1  O  ASN X 118   N  MET X  52           
SHEET    5   A 8 LEU X   7  THR X  14  1  N  ILE X  10   O  VAL X 122           
SHEET    6   A 8 LEU X 138  ILE X 146  1  O  MET X 142   N  LEU X   9           
SHEET    7   A 8 PHE X 195  THR X 203 -1  O  GLU X 200   N  ALA X 143           
SHEET    8   A 8 LYS X 170  LYS X 171 -1  N  LYS X 170   O  THR X 203           
SHEET    1   B 8 HIS X  93  ALA X  95  0                                        
SHEET    2   B 8 ILE X  76  ILE X  80  1  N  VAL X  79   O  HIS X  93           
SHEET    3   B 8 SER X  51  GLY X  58  1  N  ASN X  53   O  ILE X  76           
SHEET    4   B 8 GLN X 116  GLY X 124  1  O  ASN X 118   N  MET X  52           
SHEET    5   B 8 LEU X   7  THR X  14  1  N  ILE X  10   O  VAL X 122           
SHEET    6   B 8 LEU X 138  ILE X 146  1  O  MET X 142   N  LEU X   9           
SHEET    7   B 8 PHE X 195  THR X 203 -1  O  GLU X 200   N  ALA X 143           
SHEET    8   B 8 ILE X 190  GLU X 192 -1  N  GLU X 192   O  PHE X 195           
SHEET    1   C 2 GLY X  18  GLY X  20  0                                        
SHEET    2   C 2 VAL X 154  PHE X 155 -1  O  VAL X 154   N  ILE X  19           
CISPEP   1 ARG X   70    PRO X   71          0        -6.90                     
CISPEP   2 SER X   85    LEU X   86          0        17.03                     
CISPEP   3 LEU X   88    GLY X   89          0       -14.89                     
SITE     1 AC1 14 ILE X  10  VAL X  11  ALA X  12  LEU X  25                    
SITE     2 AC1 14 GLU X  32  ILE X  33  PHE X  36  SER X  64                    
SITE     3 AC1 14 PRO X  66  PHE X  69  ILE X 123  TYR X 129                    
SITE     4 AC1 14 GOL X 210  HOH X 249                                          
SITE     1 AC2  7 GLY X  58  LYS X  60  THR X  61  GLY X 124                    
SITE     2 AC2  7 GLY X 125  ALA X 126  GLN X 127                               
SITE     1 AC3  6 ARG X 107  SER X 166  TRP X 169  LYS X 170                    
SITE     2 AC3  6 LYS X 171  HOH X 227                                          
SITE     1 AC4  5 ALA X  12  ILE X  19  LEU X  25  ILE X 123                    
SITE     2 AC4  5 TYR X 129                                                     
CRYST1   36.859   42.667   59.936  90.00  94.77  90.00 P 1 21 1      2          
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      0.027130  0.000000  0.002264        0.00000                         
SCALE2      0.000000  0.023437  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016742        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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