PDB Short entry for 1KKU
HEADER    TRANSFERASE                             10-DEC-01   1KKU              
TITLE     CRYSTAL STRUCTURE OF NUCLEAR HUMAN NICOTINAMIDE                       
TITLE    2 MONONUCLEOTIDE ADENYLYLTRANSFERASE                                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: NICOTINAMIDE MONONUCLEOTIDE ADENYLYLTRANSFERASE;           
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: NMN ADENYLYLTRANSFERASE;                                    
COMPND   5 EC: 2.7.7.1;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PT7-7                                     
KEYWDS    ALPHA/BETA STRUCTURE - ROSSMANN FOLD, TRANSFERASE                     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.GARAVAGLIA,I.D'ANGELO,M.EMANUELLI,F.CARNEVALI,F.PIERELLA,           
AUTHOR   2 G.MAGNI,M.RIZZI                                                      
REVDAT   3   24-FEB-09 1KKU    1       VERSN                                    
REVDAT   2   01-APR-03 1KKU    1       JRNL                                     
REVDAT   1   10-JUN-02 1KKU    0                                                
JRNL        AUTH   S.GARAVAGLIA,I.D'ANGELO,M.EMANUELLI,F.CARNEVALI,             
JRNL        AUTH 2 F.PIERELLA,G.MAGNI,M.RIZZI                                   
JRNL        TITL   STRUCTURE OF HUMAN NMN ADENYLYLTRANSFERASE. A KEY            
JRNL        TITL 2 NUCLEAR ENZYME FOR NAD HOMEOSTASIS.                          
JRNL        REF    J.BIOL.CHEM.                  V. 277  8524 2002              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   11751893                                                     
JRNL        DOI    10.1074/JBC.M111589200                                       
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 14091                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.247                           
REMARK   3   R VALUE            (WORKING SET) : 0.236                           
REMARK   3   FREE R VALUE                     : 0.284                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 965                             
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1750                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 56                                      
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.018 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1KKU COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-DEC-01.                  
REMARK 100 THE RCSB ID CODE IS RCSB015061.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 02-JUL-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.1                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.934                              
REMARK 200  MONOCHROMATOR                  : MIRRORS                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14091                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY                : 8.400                              
REMARK 200  R MERGE                    (I) : 0.07500                            
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) : 2.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.60                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.0                               
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: MIR                          
REMARK 200 SOFTWARE USED: SHELXS                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 60.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.10                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, TRIS,                  
REMARK 280  ISOPROPANOL, PH 8.1, VAPOR DIFFUSION, HANGING DROP,                 
REMARK 280  TEMPERATURE 293.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+1/2                                            
REMARK 290       6555   X-Y,X,Z+1/2                                             
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z                                              
REMARK 290      10555   -Y,-X,-Z+1/2                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -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        0.00000            
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        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       30.85500            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       30.85500            
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       30.85500            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       30.85500            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       30.85500            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       30.85500            
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: HEXAMERIC                         
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 350   BIOMT1   2 -0.500000 -0.866025  0.000000       73.72950            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000      127.70324            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000      -73.72950            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000      127.70324            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   4  0.500000 -0.866025  0.000000       73.72950            
REMARK 350   BIOMT2   4 -0.866025 -0.500000  0.000000      127.70324            
REMARK 350   BIOMT3   4  0.000000  0.000000 -1.000000       30.85500            
REMARK 350   BIOMT1   5  0.500000  0.866025  0.000000      -73.72950            
REMARK 350   BIOMT2   5  0.866025 -0.500000  0.000000      127.70324            
REMARK 350   BIOMT3   5  0.000000  0.000000 -1.000000       30.85500            
REMARK 350   BIOMT1   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   6  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   6  0.000000  0.000000 -1.000000       30.85500            
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     MET A     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     ASN A     3                                                      
REMARK 465     SER A     4                                                      
REMARK 465     CYS A   111                                                      
REMARK 465     ASP A   112                                                      
REMARK 465     HIS A   113                                                      
REMARK 465     GLN A   114                                                      
REMARK 465     GLN A   115                                                      
REMARK 465     ASN A   116                                                      
REMARK 465     SER A   117                                                      
REMARK 465     PRO A   118                                                      
REMARK 465     THR A   119                                                      
REMARK 465     LEU A   120                                                      
REMARK 465     GLU A   121                                                      
REMARK 465     ARG A   122                                                      
REMARK 465     PRO A   123                                                      
REMARK 465     GLY A   124                                                      
REMARK 465     ARG A   125                                                      
REMARK 465     LYS A   126                                                      
REMARK 465     ARG A   127                                                      
REMARK 465     LYS A   128                                                      
REMARK 465     TRP A   129                                                      
REMARK 465     THR A   130                                                      
REMARK 465     GLU A   131                                                      
REMARK 465     THR A   132                                                      
REMARK 465     GLN A   133                                                      
REMARK 465     ASP A   134                                                      
REMARK 465     SER A   135                                                      
REMARK 465     SER A   136                                                      
REMARK 465     GLN A   137                                                      
REMARK 465     LYS A   138                                                      
REMARK 465     LYS A   139                                                      
REMARK 465     SER A   140                                                      
REMARK 465     LEU A   141                                                      
REMARK 465     GLU A   142                                                      
REMARK 465     PRO A   143                                                      
REMARK 465     LYS A   144                                                      
REMARK 465     THR A   145                                                      
REMARK 465     LYS A   146                                                      
REMARK 465     ALA A   147                                                      
REMARK 465     SER A   258                                                      
REMARK 465     GLU A   259                                                      
REMARK 465     ASP A   260                                                      
REMARK 465     ARG A   261                                                      
REMARK 465     ASN A   262                                                      
REMARK 465     ALA A   263                                                      
REMARK 465     GLY A   264                                                      
REMARK 465     VAL A   265                                                      
REMARK 465     ILE A   266                                                      
REMARK 465     LEU A   267                                                      
REMARK 465     ALA A   268                                                      
REMARK 465     PRO A   269                                                      
REMARK 465     LEU A   270                                                      
REMARK 465     GLN A   271                                                      
REMARK 465     ARG A   272                                                      
REMARK 465     ASN A   273                                                      
REMARK 465     THR A   274                                                      
REMARK 465     ALA A   275                                                      
REMARK 465     GLU A   276                                                      
REMARK 465     ALA A   277                                                      
REMARK 465     LYS A   278                                                      
REMARK 465     THR A   279                                                      
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     ASP A 110    CG   OD1  OD2                                       
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    MET A  69   SD    MET A  69   CE      0.392                       
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    PRO A  19   CB  -  CA  -  C   ANGL. DEV. = -18.0 DEGREES          
REMARK 500    ASP A  33   CB  -  CG  -  OD2 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ASP A 158   CB  -  CG  -  OD2 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    ASP A 173   CB  -  CG  -  OD2 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    VAL A 178   CB  -  CA  -  C   ANGL. DEV. = -22.5 DEGREES          
REMARK 500    ASN A 191   CB  -  CA  -  C   ANGL. DEV. =  12.1 DEGREES          
REMARK 500    PHE A 196   CB  -  CG  -  CD1 ANGL. DEV. =  -4.2 DEGREES          
REMARK 500    ASP A 201   CB  -  CG  -  OD2 ANGL. DEV. =   6.6 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  63      -35.56    -38.55                                   
REMARK 500    SER A 109       49.77    -77.63                                   
REMARK 500    ASP A 158      -52.77    -15.42                                   
REMARK 500    ALA A 189       51.62   -141.21                                   
REMARK 500    ASN A 219       71.81   -153.29                                   
REMARK 500    TYR A 238        8.66     84.43                                   
REMARK 500    SER A 256      -90.99    -58.85                                   
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 SER A  256     GLU A  257                 -133.27                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1F9A   RELATED DB: PDB                                   
REMARK 900 1F9A CONTAINS THE SAME PROTEIN FROM METHANOCOCCUS JANNASCHII         
REMARK 900 RELATED ID: 1EJ2   RELATED DB: PDB                                   
REMARK 900 1EJ2 CONTAINS THE SAME PROTEIN FROM METHANOBACTERIUM                 
REMARK 900 THERMOAUTOTROPHICUM                                                  
DBREF  1KKU A    1   279  UNP    Q9HAN9   NMNA1_HUMAN      1    279             
SEQRES   1 A  279  MET GLU ASN SER GLU LYS THR GLU VAL VAL LEU LEU ALA          
SEQRES   2 A  279  CYS GLY SER PHE ASN PRO ILE THR ASN MET HIS LEU ARG          
SEQRES   3 A  279  LEU PHE GLU LEU ALA LYS ASP TYR MET ASN GLY THR GLY          
SEQRES   4 A  279  ARG TYR THR VAL VAL LYS GLY ILE ILE SER PRO VAL GLY          
SEQRES   5 A  279  ASP ALA TYR LYS LYS LYS GLY LEU ILE PRO ALA TYR HIS          
SEQRES   6 A  279  ARG VAL ILE MET ALA GLU LEU ALA THR LYS ASN SER LYS          
SEQRES   7 A  279  TRP VAL GLU VAL ASP THR TRP GLU SER LEU GLN LYS GLU          
SEQRES   8 A  279  TRP LYS GLU THR LEU LYS VAL LEU ARG HIS HIS GLN GLU          
SEQRES   9 A  279  LYS LEU GLU ALA SER ASP CYS ASP HIS GLN GLN ASN SER          
SEQRES  10 A  279  PRO THR LEU GLU ARG PRO GLY ARG LYS ARG LYS TRP THR          
SEQRES  11 A  279  GLU THR GLN ASP SER SER GLN LYS LYS SER LEU GLU PRO          
SEQRES  12 A  279  LYS THR LYS ALA VAL PRO LYS VAL LYS LEU LEU CYS GLY          
SEQRES  13 A  279  ALA ASP LEU LEU GLU SER PHE ALA VAL PRO ASN LEU TRP          
SEQRES  14 A  279  LYS SER GLU ASP ILE THR GLN ILE VAL ALA ASN TYR GLY          
SEQRES  15 A  279  LEU ILE CYS VAL THR ARG ALA GLY ASN ASP ALA GLN LYS          
SEQRES  16 A  279  PHE ILE TYR GLU SER ASP VAL LEU TRP LYS HIS ARG SER          
SEQRES  17 A  279  ASN ILE HIS VAL VAL ASN GLU TRP PHE ALA ASN ASP ILE          
SEQRES  18 A  279  SER SER THR LYS ILE ARG ARG ALA LEU ARG ARG GLY GLN          
SEQRES  19 A  279  SER ILE ARG TYR LEU VAL PRO ASP LEU VAL GLN GLU TYR          
SEQRES  20 A  279  ILE GLU LYS HIS ASN LEU TYR SER SER GLU SER GLU ASP          
SEQRES  21 A  279  ARG ASN ALA GLY VAL ILE LEU ALA PRO LEU GLN ARG ASN          
SEQRES  22 A  279  THR ALA GLU ALA LYS THR                                      
FORMUL   2  HOH   *56(H2 O)                                                     
HELIX    1   1 THR A   21  THR A   38  1                                  18    
HELIX    2   2 PRO A   62  LYS A   75  1                                  14    
HELIX    3   3 THR A   84  GLN A   89  1                                   6    
HELIX    4   4 GLU A   94  ALA A  108  1                                  15    
HELIX    5   5 GLY A  156  VAL A  165  1                                  10    
HELIX    6   6 LYS A  170  TYR A  181  1                                  12    
HELIX    7   7 ALA A  189  SER A  200  1                                  12    
HELIX    8   8 SER A  200  HIS A  206  1                                   7    
HELIX    9   9 SER A  222  ARG A  232  1                                  11    
HELIX   10  10 PRO A  241  HIS A  251  1                                  11    
SHEET    1   A 6 VAL A  80  VAL A  82  0                                        
SHEET    2   A 6 TYR A  41  PRO A  50  1  N  ILE A  48   O  GLU A  81           
SHEET    3   A 6 THR A   7  GLY A  15  1  N  LEU A  11   O  ILE A  47           
SHEET    4   A 6 LYS A 150  CYS A 155  1  O  LYS A 150   N  VAL A  10           
SHEET    5   A 6 LEU A 183  THR A 187  1  O  ILE A 184   N  LEU A 153           
SHEET    6   A 6 ILE A 210  ASN A 214  1  O  VAL A 213   N  CYS A 185           
CISPEP   1 ASN A   18    PRO A   19          0        -7.58                     
CRYST1  147.459  147.459   61.710  90.00  90.00 120.00 P 63 2 2     12          
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      0.006782  0.003915  0.000000        0.00000                         
SCALE2      0.000000  0.007830  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016205        0.00000