HEADER    LYASE                                   21-JUN-00   1F6K              
TITLE     CRYSTAL STRUCTURE ANALYSIS OF N-ACETYLNEURAMINATE LYASE FROM          
TITLE    2 HAEMOPHILUS INFLUENZAE: CRYSTAL FORM II                              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: N-ACETYLNEURAMINATE LYASE;                                 
COMPND   3 CHAIN: A, C;                                                         
COMPND   4 EC: 4.1.3.3;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HAEMOPHILUS INFLUENZAE;                         
SOURCE   3 ORGANISM_TAXID: 727;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PKKTAC (VTT BIOTECH, FINLAND)             
KEYWDS    BETA BARREL, LYASE                                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.A.R.G.BARBOSA,B.J.SMITH,R.DEGORI,M.C.LAWRENCE                       
REVDAT   7   07-FEB-24 1F6K    1       REMARK SEQADV                            
REVDAT   6   31-JAN-18 1F6K    1       REMARK                                   
REVDAT   5   13-JUL-11 1F6K    1       VERSN                                    
REVDAT   4   24-FEB-09 1F6K    1       VERSN                                    
REVDAT   3   11-JUL-06 1F6K    1       JRNL                                     
REVDAT   2   01-APR-03 1F6K    1       JRNL                                     
REVDAT   1   20-DEC-00 1F6K    0                                                
JRNL        AUTH   J.A.R.G.BARBOSA,B.J.SMITH,R.DEGORI,H.C.OOI,S.M.MARCUCCIO,    
JRNL        AUTH 2 E.M.CAMPI,W.R.JACKSON,R.BROSSMER,M.SOMMER,M.C.LAWRENCE       
JRNL        TITL   ACTIVE SITE MODULATION IN THE N-ACETYLNEURAMINATE LYASE      
JRNL        TITL 2 SUB-FAMILY AS REVEALED BY THE STRUCTURE OF THE               
JRNL        TITL 3 INHIBITOR-COMPLEXED HAEMOPHILUS INFLUENZAE ENZYME.           
JRNL        REF    J.MOL.BIOL.                   V. 303   405 2000              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   11031117                                                     
JRNL        DOI    10.1006/JMBI.2000.4138                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 15.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 90.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 76521                          
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) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.189                           
REMARK   3   FREE R VALUE                     : 0.227                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 3844                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4518                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 49                                      
REMARK   3   SOLVENT ATOMS            : 890                                     
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) : NULL  ; 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 1F6K COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-JUL-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011305.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-NOV-96                          
REMARK 200  TEMPERATURE           (KELVIN) : 113                                
REMARK 200  PH                             : 4.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : MACSCIENCE                         
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS II                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 76295                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 15.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 90.4                               
REMARK 200  DATA REDUNDANCY                : 3.500                              
REMARK 200  R MERGE                    (I) : 0.04000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 28.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.63                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 46.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 1.30                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.39000                            
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: NULL                         
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   (%): 49.39                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.43                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, AMMONIUM SULPHATE, SODIUM      
REMARK 280  ACETATE, PH 4.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE         
REMARK 280  20.0K, TEMPERATURE 293.0K                                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
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        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       32.88700            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       59.20450            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       32.88700            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       59.20450            
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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TETRAMER CONSTRUCTED FROM       
REMARK 300 CHAINS A AND C GENERATED BY THE TWO-FOLD.                            
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 13240 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 40180 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -212.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, C                                  
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 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  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 C   138                                                      
REMARK 465     PRO C   139                                                      
REMARK 465     PHE C   140                                                      
REMARK 465     LEU C   141                                                      
REMARK 465     THR C   142                                                      
REMARK 465     GLY C   143                                                      
REMARK 465     VAL C   144                                                      
REMARK 465     ASN C   145                                                      
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     SER C 137    CB   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    ARG A  64   CD  -  NE  -  CZ  ANGL. DEV. =  10.9 DEGREES          
REMARK 500    ARG A  64   NE  -  CZ  -  NH1 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ARG A 269   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.7 DEGREES          
REMARK 500    GLU A 270   CA  -  C   -  O   ANGL. DEV. = -17.1 DEGREES          
REMARK 500    PRO A 271   CA  -  N   -  CD  ANGL. DEV. = -10.1 DEGREES          
REMARK 500    PRO A 271   N   -  CA  -  CB  ANGL. DEV. =   9.0 DEGREES          
REMARK 500    ARG C  64   CD  -  NE  -  CZ  ANGL. DEV. =   8.5 DEGREES          
REMARK 500    ARG C  64   NE  -  CZ  -  NH1 ANGL. DEV. =   5.1 DEGREES          
REMARK 500    CYS C 102   CA  -  CB  -  SG  ANGL. DEV. =  13.5 DEGREES          
REMARK 500    ARG C 175   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.4 DEGREES          
REMARK 500    ARG C 269   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500    GLU C 270   CA  -  C   -  O   ANGL. DEV. = -18.2 DEGREES          
REMARK 500    PRO C 271   CA  -  N   -  CD  ANGL. DEV. = -10.3 DEGREES          
REMARK 500    PRO C 271   N   -  CA  -  CB  ANGL. DEV. =   9.9 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    LYS A  71     -120.55     51.46                                   
REMARK 500    PHE A 109     -167.92   -121.90                                   
REMARK 500    TYR A 110      -75.85     73.73                                   
REMARK 500    LYS C  71     -123.90     46.40                                   
REMARK 500    PHE C 109     -161.91   -119.79                                   
REMARK 500    TYR C 110      -70.84     65.42                                   
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 GLU A  270     PRO A  271                   53.21                    
REMARK 500 GLU C  270     PRO C  271                   54.99                    
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    GLU A 270         21.34                                           
REMARK 500    GLU C 270         23.16                                           
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 SO4 A 2001                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 C 2002                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 C 2003                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 2004                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 2005                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 1001                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 1003                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 1004                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL C 1005                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1NAL   RELATED DB: PDB                                   
REMARK 900 N-ACETYLNEURAMINATE LYASE FROM ESCHERICHIA COLI IZARD, T., LAWRENCE, 
REMARK 900 M.C., MALBY, R.L., LILLEY, G.G., COLMAN, P.M.: THE THREE-            
REMARK 900 DIMENSIONAL STRUTURE OF N-ACETYLNEURAMINATE LYASE ESCHERICHIA COLI.  
REMARK 900 STRUCTURE (1994) 2, 361.                                             
REMARK 900 RELATED ID: 1FDY   RELATED DB: PDB                                   
REMARK 900 STRUCTURE AND MECHANSISM OF A SUB-FAMILY OF ENZYMES RELATED TO N-    
REMARK 900 ACETYLNEURAMINATE LYASE M.C. LAWRENCE, J.A.R.G. BARBOSA, B.J. SMITH, 
REMARK 900 N.E. HALL, P.A. PILLING, H,C, OOI, S.M. MARCUCCIO J. MOL. BIOL.      
REMARK 900 (1997) 266, 381-399                                                  
REMARK 900 RELATED ID: 1FDZ   RELATED DB: PDB                                   
REMARK 900 STRUCTURE AND MECHANSISM OF A SUB-FAMILY OF ENZYMES RELATED TO N-    
REMARK 900 ACETYLNEURAMINATE LYASE M.C. LAWRENCE, J.A.R.G. BARBOSA, B.J. SMITH, 
REMARK 900 N.E. HALL, P.A. PILLING, H,C, OOI, S.M. MARCUCCIO J. MOL. BIOL.      
REMARK 900 (1997) 266, 381-399                                                  
REMARK 900 RELATED ID: 1F5Z   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE ANALYSIS OF N-ACETYLNEURAMINATE LYASE FROM         
REMARK 900 HAEMOPHILUS INFLUENZAE: CRYSTAL FORM I                               
REMARK 900 RELATED ID: 1F6P   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1F73   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1F7B   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1F74   RELATED DB: PDB                                   
DBREF  1F6K A    1   293  UNP    P44539   NANA_HAEIN       1    293             
DBREF  1F6K C    1   293  UNP    P44539   NANA_HAEIN       1    293             
SEQADV 1F6K SER A  131  UNP  P44539    ASN   131 VARIANT                        
SEQADV 1F6K LYS A  229  UNP  P44539    ALA   229 VARIANT                        
SEQADV 1F6K ALA A  278  UNP  P44539    GLU   278 VARIANT                        
SEQADV 1F6K VAL A  281  UNP  P44539    LEU   281 VARIANT                        
SEQADV 1F6K SER C  131  UNP  P44539    ASN   131 VARIANT                        
SEQADV 1F6K LYS C  229  UNP  P44539    ALA   229 VARIANT                        
SEQADV 1F6K ALA C  278  UNP  P44539    GLU   278 VARIANT                        
SEQADV 1F6K VAL C  281  UNP  P44539    LEU   281 VARIANT                        
SEQRES   1 A  293  MET ARG ASP LEU LYS GLY ILE PHE SER ALA LEU LEU VAL          
SEQRES   2 A  293  SER PHE ASN GLU ASP GLY THR ILE ASN GLU LYS GLY LEU          
SEQRES   3 A  293  ARG GLN ILE ILE ARG HIS ASN ILE ASP LYS MET LYS VAL          
SEQRES   4 A  293  ASP GLY LEU TYR VAL GLY GLY SER THR GLY GLU ASN PHE          
SEQRES   5 A  293  MET LEU SER THR GLU GLU LYS LYS GLU ILE PHE ARG ILE          
SEQRES   6 A  293  ALA LYS ASP GLU ALA LYS ASP GLN ILE ALA LEU ILE ALA          
SEQRES   7 A  293  GLN VAL GLY SER VAL ASN LEU LYS GLU ALA VAL GLU LEU          
SEQRES   8 A  293  GLY LYS TYR ALA THR GLU LEU GLY TYR ASP CYS LEU SER          
SEQRES   9 A  293  ALA VAL THR PRO PHE TYR TYR LYS PHE SER PHE PRO GLU          
SEQRES  10 A  293  ILE LYS HIS TYR TYR ASP THR ILE ILE ALA GLU THR GLY          
SEQRES  11 A  293  SER ASN MET ILE VAL TYR SER ILE PRO PHE LEU THR GLY          
SEQRES  12 A  293  VAL ASN MET GLY ILE GLU GLN PHE GLY GLU LEU TYR LYS          
SEQRES  13 A  293  ASN PRO LYS VAL LEU GLY VAL LYS PHE THR ALA GLY ASP          
SEQRES  14 A  293  PHE TYR LEU LEU GLU ARG LEU LYS LYS ALA TYR PRO ASN          
SEQRES  15 A  293  HIS LEU ILE TRP ALA GLY PHE ASP GLU MET MET LEU PRO          
SEQRES  16 A  293  ALA ALA SER LEU GLY VAL ASP GLY ALA ILE GLY SER THR          
SEQRES  17 A  293  PHE ASN VAL ASN GLY VAL ARG ALA ARG GLN ILE PHE GLU          
SEQRES  18 A  293  LEU THR LYS ALA GLY LYS LEU LYS GLU ALA LEU GLU ILE          
SEQRES  19 A  293  GLN HIS VAL THR ASN ASP LEU ILE GLU GLY ILE LEU ALA          
SEQRES  20 A  293  ASN GLY LEU TYR LEU THR ILE LYS GLU LEU LEU LYS LEU          
SEQRES  21 A  293  GLU GLY VAL ASP ALA GLY TYR CYS ARG GLU PRO MET THR          
SEQRES  22 A  293  SER LYS ALA THR ALA GLU GLN VAL ALA LYS ALA LYS ASP          
SEQRES  23 A  293  LEU LYS ALA LYS PHE LEU SER                                  
SEQRES   1 C  293  MET ARG ASP LEU LYS GLY ILE PHE SER ALA LEU LEU VAL          
SEQRES   2 C  293  SER PHE ASN GLU ASP GLY THR ILE ASN GLU LYS GLY LEU          
SEQRES   3 C  293  ARG GLN ILE ILE ARG HIS ASN ILE ASP LYS MET LYS VAL          
SEQRES   4 C  293  ASP GLY LEU TYR VAL GLY GLY SER THR GLY GLU ASN PHE          
SEQRES   5 C  293  MET LEU SER THR GLU GLU LYS LYS GLU ILE PHE ARG ILE          
SEQRES   6 C  293  ALA LYS ASP GLU ALA LYS ASP GLN ILE ALA LEU ILE ALA          
SEQRES   7 C  293  GLN VAL GLY SER VAL ASN LEU LYS GLU ALA VAL GLU LEU          
SEQRES   8 C  293  GLY LYS TYR ALA THR GLU LEU GLY TYR ASP CYS LEU SER          
SEQRES   9 C  293  ALA VAL THR PRO PHE TYR TYR LYS PHE SER PHE PRO GLU          
SEQRES  10 C  293  ILE LYS HIS TYR TYR ASP THR ILE ILE ALA GLU THR GLY          
SEQRES  11 C  293  SER ASN MET ILE VAL TYR SER ILE PRO PHE LEU THR GLY          
SEQRES  12 C  293  VAL ASN MET GLY ILE GLU GLN PHE GLY GLU LEU TYR LYS          
SEQRES  13 C  293  ASN PRO LYS VAL LEU GLY VAL LYS PHE THR ALA GLY ASP          
SEQRES  14 C  293  PHE TYR LEU LEU GLU ARG LEU LYS LYS ALA TYR PRO ASN          
SEQRES  15 C  293  HIS LEU ILE TRP ALA GLY PHE ASP GLU MET MET LEU PRO          
SEQRES  16 C  293  ALA ALA SER LEU GLY VAL ASP GLY ALA ILE GLY SER THR          
SEQRES  17 C  293  PHE ASN VAL ASN GLY VAL ARG ALA ARG GLN ILE PHE GLU          
SEQRES  18 C  293  LEU THR LYS ALA GLY LYS LEU LYS GLU ALA LEU GLU ILE          
SEQRES  19 C  293  GLN HIS VAL THR ASN ASP LEU ILE GLU GLY ILE LEU ALA          
SEQRES  20 C  293  ASN GLY LEU TYR LEU THR ILE LYS GLU LEU LEU LYS LEU          
SEQRES  21 C  293  GLU GLY VAL ASP ALA GLY TYR CYS ARG GLU PRO MET THR          
SEQRES  22 C  293  SER LYS ALA THR ALA GLU GLN VAL ALA LYS ALA LYS ASP          
SEQRES  23 C  293  LEU LYS ALA LYS PHE LEU SER                                  
HET    SO4  A2001       5                                                       
HET    SO4  A2004       5                                                       
HET    SO4  A2005       5                                                       
HET    GOL  A1001       6                                                       
HET    GOL  A1003       6                                                       
HET    GOL  A1004       6                                                       
HET    SO4  C2002       5                                                       
HET    SO4  C2003       5                                                       
HET    GOL  C1005       6                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   3  SO4    5(O4 S 2-)                                                   
FORMUL   6  GOL    4(C3 H8 O3)                                                  
FORMUL  12  HOH   *890(H2 O)                                                    
HELIX    1   1 ASN A   22  LYS A   36  1                                  15    
HELIX    2   2 GLY A   46  GLU A   50  5                                   5    
HELIX    3   3 GLU A   50  LEU A   54  5                                   5    
HELIX    4   4 SER A   55  LYS A   71  1                                  17    
HELIX    5   5 ASN A   84  GLY A   99  1                                  16    
HELIX    6   6 SER A  114  GLY A  130  1                                  17    
HELIX    7   7 ILE A  138  GLY A  143  1                                   6    
HELIX    8   8 GLY A  147  LYS A  156  1                                  10    
HELIX    9   9 ASP A  169  TYR A  180  1                                  12    
HELIX   10  10 PHE A  189  GLU A  191  5                                   3    
HELIX   11  11 MET A  192  LEU A  199  1                                   8    
HELIX   12  12 THR A  208  GLY A  213  1                                   6    
HELIX   13  13 ASN A  212  ALA A  225  1                                  14    
HELIX   14  14 LYS A  227  GLY A  249  1                                  23    
HELIX   15  15 GLY A  249  GLU A  261  1                                  13    
HELIX   16  16 THR A  277  LEU A  292  1                                  16    
HELIX   17  17 ASN C   22  LYS C   36  1                                  15    
HELIX   18  18 GLY C   46  GLU C   50  5                                   5    
HELIX   19  19 GLU C   50  LEU C   54  5                                   5    
HELIX   20  20 SER C   55  LYS C   71  1                                  17    
HELIX   21  21 ASN C   84  GLY C   99  1                                  16    
HELIX   22  22 SER C  114  GLY C  130  1                                  17    
HELIX   23  23 GLY C  147  LYS C  156  1                                  10    
HELIX   24  24 ASP C  169  TYR C  180  1                                  12    
HELIX   25  25 PHE C  189  GLU C  191  5                                   3    
HELIX   26  26 MET C  192  LEU C  199  1                                   8    
HELIX   27  27 THR C  208  GLY C  213  1                                   6    
HELIX   28  28 ASN C  212  ALA C  225  1                                  14    
HELIX   29  29 LYS C  227  GLY C  249  1                                  23    
HELIX   30  30 GLY C  249  GLU C  261  1                                  13    
HELIX   31  31 THR C  277  LEU C  292  1                                  16    
SHEET    1   A 9 GLY A   6  ALA A  10  0                                        
SHEET    2   A 9 GLY A  41  VAL A  44  1  O  GLY A  41   N  SER A   9           
SHEET    3   A 9 ALA A  75  GLN A  79  1  O  ALA A  75   N  LEU A  42           
SHEET    4   A 9 CYS A 102  VAL A 106  1  O  CYS A 102   N  ALA A  78           
SHEET    5   A 9 MET A 133  SER A 137  1  O  ILE A 134   N  ALA A 105           
SHEET    6   A 9 VAL A 160  PHE A 165  1  N  LEU A 161   O  MET A 133           
SHEET    7   A 9 LEU A 184  ALA A 187  1  N  LEU A 184   O  LEU A 161           
SHEET    8   A 9 GLY A 203  GLY A 206  1  O  GLY A 203   N  ALA A 187           
SHEET    9   A 9 GLY A   6  ALA A  10  1  O  GLY A   6   N  ALA A 204           
SHEET    1   B 9 GLY C   6  ALA C  10  0                                        
SHEET    2   B 9 GLY C  41  VAL C  44  1  O  GLY C  41   N  SER C   9           
SHEET    3   B 9 ALA C  75  GLN C  79  1  O  ALA C  75   N  LEU C  42           
SHEET    4   B 9 CYS C 102  SER C 104  1  O  CYS C 102   N  ALA C  78           
SHEET    5   B 9 MET C 133  SER C 137  1  N  ILE C 134   O  LEU C 103           
SHEET    6   B 9 VAL C 160  PHE C 165  1  N  LEU C 161   O  MET C 133           
SHEET    7   B 9 LEU C 184  ALA C 187  1  N  LEU C 184   O  LEU C 161           
SHEET    8   B 9 GLY C 203  GLY C 206  1  O  GLY C 203   N  ALA C 187           
SHEET    9   B 9 GLY C   6  ALA C  10  1  O  GLY C   6   N  ALA C 204           
SITE     1 AC1  9 ALA A  10  TYR A  43  GLY A  46  SER A  47                    
SITE     2 AC1  9 THR A  48  TYR A 136  LYS A 164  HOH A2072                    
SITE     3 AC1  9 HOH A2429                                                     
SITE     1 AC2  7 ALA C  10  TYR C  43  GLY C  46  SER C  47                    
SITE     2 AC2  7 THR C  48  TYR C 136  LYS C 164                               
SITE     1 AC3  8 LYS C  38  TYR C 180  PRO C 181  ASN C 182                    
SITE     2 AC3  8 HIS C 183  ARG C 217  HOH C2142  HOH C2365                    
SITE     1 AC4  8 VAL A 281  LYS A 285  HOH A2036  HOH A2043                    
SITE     2 AC4  8 HOH A2073  HOH A2161  HOH A2255  HOH A2486                    
SITE     1 AC5  5 TYR A 180  PRO A 181  ASN A 182  HIS A 183                    
SITE     2 AC5  5 HOH A2467                                                     
SITE     1 AC6  9 LYS A 259  GLY A 266  TYR A 267  HOH A2114                    
SITE     2 AC6  9 HOH A2115  HOH A2117  HOH A2177  HOH A2344                    
SITE     3 AC6  9 HOH A2375                                                     
SITE     1 AC7  7 ARG A   2  LYS A  67  ASP A  72  ASP A 101                    
SITE     2 AC7  7 ALA A 289  HOH A2033  HOH A2365                               
SITE     1 AC8  8 GLY A 226  LYS A 227  LEU A 228  LYS A 229                    
SITE     2 AC8  8 GLU A 230  HOH A2408  HOH A2491  HOH C2381                    
SITE     1 AC9  8 HOH A2370  GLY C 226  LYS C 227  LEU C 228                    
SITE     2 AC9  8 LYS C 229  GLU C 230  HOH C2161  HOH C2387                    
CRYST1   65.774  118.409   81.312  90.00  90.00  90.00 P 21 21 2     8          
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      0.015200  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.008450  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012300        0.00000