HEADER    HYDROLASE                               10-MAR-03   1HKI              
TITLE     CRYSTAL STRUCTURE OF HUMAN CHITINASE IN COMPLEX WITH GLUCOALLOSAMIDIN 
TITLE    2 B                                                                    
CAVEAT     1HKI    NA1 B 2 HAS WRONG CHIRALITY AT ATOM C1                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CHITOTRIOSIDASE;                                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: ENDOCHITINASE;                                              
COMPND   5 EC: 3.2.1.14;                                                        
COMPND   6 OTHER_DETAILS: GLUCOALLOSAMIDIN B                                    
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 CELL: MACROPHAGE                                                     
KEYWDS    HUMAN CHITINASE, HYDROLASE, GLUCOALLOSAMIDIN B, ALLOSAMIDIN           
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    F.V.RAO,D.R.HOUSTON,R.G.BOOT,J.M.F.G.AERTS,S.SAKUDA,D.M.F.VAN AALTEN  
REVDAT   6   09-OCT-24 1HKI    1       REMARK                                   
REVDAT   5   13-DEC-23 1HKI    1       REMARK HETSYN                            
REVDAT   4   29-JUL-20 1HKI    1       CAVEAT COMPND REMARK HETNAM              
REVDAT   4 2                   1       LINK   SITE   ATOM                       
REVDAT   3   24-JUL-19 1HKI    1       REMARK LINK                              
REVDAT   2   24-FEB-09 1HKI    1       VERSN                                    
REVDAT   1   11-MAR-04 1HKI    0                                                
JRNL        AUTH   F.V.RAO,D.R.HOUSTON,R.G.BOOT,J.M.F.G.AERTS,S.SAKUDA,         
JRNL        AUTH 2 D.M.F.VAN AALTEN                                             
JRNL        TITL   CRYSTAL STRUCTURES OF ALLOSAMIDIN DERIVATIVES IN COMPLEX     
JRNL        TITL 2 WITH HUMAN MACROPHAGE CHITINASE                              
JRNL        REF    J.BIOL.CHEM.                  V. 278 20110 2003              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   12639956                                                     
JRNL        DOI    10.1074/JBC.M300362200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.55 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.55                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 24.98                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1549735.230                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 13225                          
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 SET) : 0.223                           
REMARK   3   FREE R VALUE                     : 0.267                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 2.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 261                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.017                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.55                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.71                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.70                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 2106                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3310                       
REMARK   3   BIN FREE R VALUE                    : 0.4030                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 1.90                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 40                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.064                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2877                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 43                                      
REMARK   3   SOLVENT ATOMS            : 63                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 46.60                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 49.10                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 6.91000                                              
REMARK   3    B22 (A**2) : 6.91000                                              
REMARK   3    B33 (A**2) : -13.82000                                            
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.34                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.44                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.50                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.59                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.012                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.600                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.40                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.990                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.540 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.540 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.140 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.130 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.30                                                 
REMARK   3   BSOL        : 33.74                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : GLUC_ALLOB.PARAM                               
REMARK   3  PARAMETER FILE  4  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : GLUC_ALLOB.TOP                                 
REMARK   3  TOPOLOGY FILE  4   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1HKI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 10-MAR-03.                  
REMARK 100 THE DEPOSITION ID IS D_1290012335.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-AUG-02                          
REMARK 200  TEMPERATURE           (KELVIN) : 113.0                              
REMARK 200  PH                             : 6.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : X11                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.811                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 13275                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.550                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 25.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 3.900                              
REMARK 200  R MERGE                    (I) : 0.08300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.55                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.64                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.66100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: PDB ENTRY 1GUV                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 25 % PEG 550 MME, 0.01 M ZNSO4, 0.1 M    
REMARK 280  MES PH 6.5, PH 6.50                                                 
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-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 -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       44.21250            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       47.07100            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       47.07100            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       66.31875            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       47.07100            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       47.07100            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       22.10625            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       47.07100            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       47.07100            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       66.31875            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       47.07100            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       47.07100            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       22.10625            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       44.21250            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     GLN A   36   CG   CD   OE1  NE2                                  
REMARK 480     GLN A   78   CG   CD   OE1  NE2                                  
REMARK 480     GLN A  104   CB   CG   CD   OE1  NE2                             
REMARK 480     GLN A  117   CB   CG   CD   OE1  NE2                             
REMARK 480     GLN A  232   CD   OE1  NE2                                       
REMARK 480     GLN A  252   OE1                                                 
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A  2015     O    HOH A  2015     7465     0.93            
REMARK 500   OE1  GLN A   167     OE1  GLN A   167     8665     2.16            
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    GLU A  38       -3.96    -57.06                                   
REMARK 500    ASN A  63       51.88     72.72                                   
REMARK 500    TRP A  71      -19.84    -43.06                                   
REMARK 500    ASN A 100       33.00    -89.25                                   
REMARK 500    ALA A 149        7.70    -56.79                                   
REMARK 500    SER A 217       -5.90    -50.88                                   
REMARK 500    GLU A 233       -0.38    -56.06                                   
REMARK 500    LEU A 241       53.15    -56.98                                   
REMARK 500    THR A 279       51.69   -105.15                                   
REMARK 500    VAL A 281       92.09    -69.04                                   
REMARK 500    CYS A 307      -71.07    -20.75                                   
REMARK 500    TRP A 309       93.03     -0.36                                   
REMARK 500    ASP A 328     -118.10     60.96                                   
REMARK 500    SER A 369      -41.82   -144.02                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2019        DISTANCE =  7.47 ANGSTROMS                       
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 DETERMINATION METHOD: DSSP                                           
REMARK 700 THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS          
REMARK 700 BELOW IS ACTUALLY AN 10-STRANDED BARREL THIS IS REPRESENTED BY       
REMARK 700 A 11-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS              
REMARK 700 ARE IDENTICAL.                                                       
REMARK 700 THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN               
REMARK 700 ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW,          
REMARK 700 TWO SHEETS ARE DEFINED.                                              
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1GUV   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF HUMAN CHITOTRIOSIDASE                                   
REMARK 900 RELATED ID: 1HKJ   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF HUMAN CHITINASE IN COMPLEX WITH                 
REMARK 900 METHYLALLOSAMIDIN                                                    
REMARK 900 RELATED ID: 1HKK   RELATED DB: PDB                                   
REMARK 900 HIGH RESOULTION CRYSTAL STRUCTURE OF HUMAN CHITINASE IN COMPLEX      
REMARK 900 WITH ALLOSAMIDIN                                                     
REMARK 900 RELATED ID: 1HKM   RELATED DB: PDB                                   
REMARK 900 HIGH RESOULTION CRYSTAL STRUCTURE OF HUMAN CHITINASE IN COMPLEX      
REMARK 900 WITH DEMETHYLALLOSAMIDIN                                             
REMARK 900 RELATED ID: 1LG1   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF HUMAN CHITOTRIOSIDASE IN COMPLEX WITHCHITOBIOSE 
REMARK 900 RELATED ID: 1LG2   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF HUMAN CHITOTRIOSIDASE IN COMPLEX WITHETHYLENE   
REMARK 900 GLYCOL                                                               
DBREF  1HKI A   22   386  UNP    Q13231   Q13231          22    386             
SEQADV 1HKI GLN A  234  UNP  Q13231    GLU   234 CONFLICT                       
SEQRES   1 A  365  ALA LYS LEU VAL CYS TYR PHE THR ASN TRP ALA GLN TYR          
SEQRES   2 A  365  ARG GLN GLY GLU ALA ARG PHE LEU PRO LYS ASP LEU ASP          
SEQRES   3 A  365  PRO SER LEU CYS THR HIS LEU ILE TYR ALA PHE ALA GLY          
SEQRES   4 A  365  MET THR ASN HIS GLN LEU SER THR THR GLU TRP ASN ASP          
SEQRES   5 A  365  GLU THR LEU TYR GLN GLU PHE ASN GLY LEU LYS LYS MET          
SEQRES   6 A  365  ASN PRO LYS LEU LYS THR LEU LEU ALA ILE GLY GLY TRP          
SEQRES   7 A  365  ASN PHE GLY THR GLN LYS PHE THR ASP MET VAL ALA THR          
SEQRES   8 A  365  ALA ASN ASN ARG GLN THR PHE VAL ASN SER ALA ILE ARG          
SEQRES   9 A  365  PHE LEU ARG LYS TYR SER PHE ASP GLY LEU ASP LEU ASP          
SEQRES  10 A  365  TRP GLU TYR PRO GLY SER GLN GLY SER PRO ALA VAL ASP          
SEQRES  11 A  365  LYS GLU ARG PHE THR THR LEU VAL GLN ASP LEU ALA ASN          
SEQRES  12 A  365  ALA PHE GLN GLN GLU ALA GLN THR SER GLY LYS GLU ARG          
SEQRES  13 A  365  LEU LEU LEU SER ALA ALA VAL PRO ALA GLY GLN THR TYR          
SEQRES  14 A  365  VAL ASP ALA GLY TYR GLU VAL ASP LYS ILE ALA GLN ASN          
SEQRES  15 A  365  LEU ASP PHE VAL ASN LEU MET ALA TYR ASP PHE HIS GLY          
SEQRES  16 A  365  SER TRP GLU LYS VAL THR GLY HIS ASN SER PRO LEU TYR          
SEQRES  17 A  365  LYS ARG GLN GLU GLN SER GLY ALA ALA ALA SER LEU ASN          
SEQRES  18 A  365  VAL ASP ALA ALA VAL GLN GLN TRP LEU GLN LYS GLY THR          
SEQRES  19 A  365  PRO ALA SER LYS LEU ILE LEU GLY MET PRO THR TYR GLY          
SEQRES  20 A  365  ARG SER PHE THR LEU ALA SER SER SER ASP THR ARG VAL          
SEQRES  21 A  365  GLY ALA PRO ALA THR GLY SER GLY THR PRO GLY PRO PHE          
SEQRES  22 A  365  THR LYS GLU GLY GLY MET LEU ALA TYR TYR GLU VAL CYS          
SEQRES  23 A  365  SER TRP LYS GLY ALA THR LYS GLN ARG ILE GLN ASP GLN          
SEQRES  24 A  365  LYS VAL PRO TYR ILE PHE ARG ASP ASN GLN TRP VAL GLY          
SEQRES  25 A  365  PHE ASP ASP VAL GLU SER PHE LYS THR LYS VAL SER TYR          
SEQRES  26 A  365  LEU LYS GLN LYS GLY LEU GLY GLY ALA MET VAL TRP ALA          
SEQRES  27 A  365  LEU ASP LEU ASP ASP PHE ALA GLY PHE SER CYS ASN GLN          
SEQRES  28 A  365  GLY ARG TYR PRO LEU ILE GLN THR LEU ARG GLN GLU LEU          
SEQRES  29 A  365  SER                                                          
HET    NAG  B   1      14                                                       
HET    NA1  B   2      15                                                       
HET    ALI  A1389      14                                                       
HETNAM     NAG 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE                         
HETNAM     NA1 2-ACETAMIDO-2-DEOXY-6-O-METHYL-ALPHA-D-ALLOPYRANOSE              
HETNAM     ALI METHYL N-ACETYL ALLOSAMINE                                       
HETSYN     NAG N-ACETYL-BETA-D-GLUCOSAMINE; 2-ACETAMIDO-2-DEOXY-BETA-           
HETSYN   2 NAG  D-GLUCOSE; 2-ACETAMIDO-2-DEOXY-D-GLUCOSE; 2-ACETAMIDO-          
HETSYN   3 NAG  2-DEOXY-GLUCOSE; N-ACETYL-D-GLUCOSAMINE                         
HETSYN     NA1 METHYL N-ACETYL ALLOSAMINE; 2-(ACETYLAMINO)-2-DEOXY-6-           
HETSYN   2 NA1  O-METHYL-ALPHA-D-ALLOPYRANOSE; 2-ACETAMIDO-2-DEOXY-6-           
HETSYN   3 NA1  O-METHYL-ALPHA-D-ALLOSE; 2-ACETAMIDO-2-DEOXY-6-O-               
HETSYN   4 NA1  METHYL-D-ALLOSE; 2-ACETAMIDO-2-DEOXY-6-O-METHYL-ALLOSE          
HETSYN     ALI (4R,5R,6R)-6-(HYDROXYMETHYL)-2-(METHYLENEAMINO)-4,5,6,           
HETSYN   2 ALI  6A-TETRAHYDRO-3AH-CYCLOPENTA[D][1,3]OXAZOLE-4,5-DIOL            
FORMUL   2  NAG    C8 H15 N O6                                                  
FORMUL   2  NA1    C9 H17 N O6                                                  
FORMUL   3  ALI    C8 H12 N2 O4                                                 
FORMUL   4  HOH   *63(H2 O)                                                     
HELIX    1   1 TRP A   31  ARG A   35  5                                   5    
HELIX    2   2 GLN A   36  ARG A   40  5                                   5    
HELIX    3   3 LEU A   42  LEU A   46  5                                   5    
HELIX    4   4 ASN A   72  ASN A   87  1                                  16    
HELIX    5   5 TRP A   99  GLY A  102  5                                   4    
HELIX    6   6 THR A  103  VAL A  110  1                                   8    
HELIX    7   7 THR A  112  SER A  131  1                                  20    
HELIX    8   8 ALA A  149  GLY A  174  1                                  26    
HELIX    9   9 GLY A  187  TYR A  195  1                                   9    
HELIX   10  10 GLU A  196  LEU A  204  1                                   9    
HELIX   11  11 ASN A  242  GLN A  252  1                                  11    
HELIX   12  12 TYR A  303  TRP A  309  1                                   7    
HELIX   13  13 ASP A  336  LYS A  350  1                                  15    
HELIX   14  14 ALA A  359  ASP A  363  5                                   5    
HELIX   15  15 TYR A  375  SER A  386  1                                  12    
SHEET    1  AA11 LYS A  23  THR A  29  0                                        
SHEET    2  AA11 GLY A 354  TRP A 358  1  O  ALA A 355   N  VAL A  25           
SHEET    3  AA11 LEU A 260  PRO A 265  1  O  LEU A 262   N  MET A 356           
SHEET    4  AA11 PHE A 206  LEU A 209  1  O  VAL A 207   N  ILE A 261           
SHEET    5  AA11 LEU A 179  VAL A 184  1  O  ALA A 182   N  ASN A 208           
SHEET    6  AA11 GLY A 134  ASP A 138  1  O  LEU A 135   N  SER A 181           
SHEET    7  AA11 LYS A  91  GLY A  97  1  O  LEU A  94   N  ASP A 136           
SHEET    8  AA11 HIS A  53  MET A  61  1  O  LEU A  54   N  LEU A  93           
SHEET    9  AA11 LYS A  23  THR A  29  1  O  LEU A  24   N  HIS A  53           
SHEET   10  AA11 GLY A 354  TRP A 358  1  O  ALA A 355   N  VAL A  25           
SHEET   11  AA11 LYS A  23  THR A  29  1  O  LYS A  23   N  ALA A 355           
SHEET    1  AB 8 ALA A 285  SER A 288  0                                        
SHEET    2  AB 8 TYR A 267  LEU A 273 -1  O  THR A 272   N  THR A 286           
SHEET    3  AB 8 LEU A 301  ALA A 302 -1  O  LEU A 301   N  GLY A 268           
SHEET    4  AB 8 TYR A 267  LEU A 273 -1  O  GLY A 268   N  LEU A 301           
SHEET    5  AB 8 THR A 313  ILE A 317  0                                        
SHEET    6  AB 8 VAL A 322  ARG A 327 -1  O  VAL A 322   N  ILE A 317           
SHEET    7  AB 8 GLN A 330  GLY A 333 -1  O  GLN A 330   N  ARG A 327           
SHEET    8  AB 8 TYR A 267  LEU A 273 -1  O  ARG A 269   N  GLY A 333           
SSBOND   1 CYS A   26    CYS A   51                          1555   1555  2.02  
SSBOND   2 CYS A  307    CYS A  370                          1555   1555  2.01  
LINK         O4  ALI A1389                 C1  NAG B   1     1555   1555  1.44  
LINK         O4  NAG B   1                 C1  NA1 B   2     1555   1555  1.42  
CISPEP   1 ALA A   57    PHE A   58          0        -0.02                     
CISPEP   2 GLU A  140    TYR A  141          0        -2.87                     
CISPEP   3 TRP A  358    ALA A  359          0        -0.28                     
CRYST1   94.142   94.142   88.425  90.00  90.00  90.00 P 43 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      0.010622  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010622  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011309        0.00000