HEADER    HYDROLASE                               02-OCT-14   4WKA              
TITLE     CRYSTAL STRUCTURE OF HUMAN CHITOTRIOSIDASE-1 CATALYTIC DOMAIN AT 0.95 
TITLE    2 A RESOLUTION                                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CHITOTRIOSIDASE-1;                                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 22-386;                                       
COMPND   5 SYNONYM: CHITINASE-1;                                                
COMPND   6 EC: 3.2.1.14;                                                        
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: CHIT1;                                                         
SOURCE   6 EXPRESSION_SYSTEM: HOMO SAPIENS;                                     
SOURCE   7 EXPRESSION_SYSTEM_COMMON: HUMAN;                                     
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 9606;                                       
SOURCE   9 EXPRESSION_SYSTEM_CELL_LINE: HEK293T                                 
KEYWDS    CHIT1, GH18 CHITINASE, PROTONATION STATES, HYDROLYSIS, CATALYTIC      
KEYWDS   2 MECHANISM, HYDROLASE                                                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    F.FADEL,Y.ZHAO,R.CACHAU,A.COUSIDO-SIAH,F.X.RUIZ,K.HARLOS,E.HOWARD,    
AUTHOR   2 A.MITSCHLER,A.PODJARNY                                               
REVDAT   5   13-NOV-24 4WKA    1       REMARK                                   
REVDAT   4   10-JAN-24 4WKA    1       REMARK                                   
REVDAT   3   22-JUL-15 4WKA    1       JRNL                                     
REVDAT   2   15-JUL-15 4WKA    1       JRNL                                     
REVDAT   1   08-JUL-15 4WKA    0                                                
JRNL        AUTH   F.FADEL,Y.ZHAO,R.CACHAU,A.COUSIDO-SIAH,F.X.RUIZ,K.HARLOS,    
JRNL        AUTH 2 E.HOWARD,A.MITSCHLER,A.PODJARNY                              
JRNL        TITL   NEW INSIGHTS INTO THE ENZYMATIC MECHANISM OF HUMAN           
JRNL        TITL 2 CHITOTRIOSIDASE (CHIT1) CATALYTIC DOMAIN BY ATOMIC           
JRNL        TITL 3 RESOLUTION X-RAY DIFFRACTION AND HYBRID QM/MM.               
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  71  1455 2015              
JRNL        REFN                   ESSN 1399-0047                               
JRNL        PMID   26143917                                                     
JRNL        DOI    10.1107/S139900471500783X                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    0.95 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: DEV_1702)                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 0.95                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 42.66                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.360                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 223022                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.113                           
REMARK   3   R VALUE            (WORKING SET) : 0.112                           
REMARK   3   FREE R VALUE                     : 0.123                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.020                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 11188                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 42.7066 -  2.9521    0.97     7613   413  0.1355 0.1391        
REMARK   3     2  2.9521 -  2.3432    1.00     7537   401  0.1277 0.1333        
REMARK   3     3  2.3432 -  2.0470    1.00     7461   410  0.1113 0.1221        
REMARK   3     4  2.0470 -  1.8598    1.00     7422   365  0.1101 0.1163        
REMARK   3     5  1.8598 -  1.7265    0.99     7358   392  0.1072 0.1171        
REMARK   3     6  1.7265 -  1.6247    0.99     7367   402  0.1012 0.1200        
REMARK   3     7  1.6247 -  1.5434    0.99     7281   389  0.0957 0.1059        
REMARK   3     8  1.5434 -  1.4762    0.98     7259   408  0.0928 0.1182        
REMARK   3     9  1.4762 -  1.4193    0.99     7261   381  0.0935 0.0972        
REMARK   3    10  1.4193 -  1.3704    0.99     7278   371  0.0898 0.1079        
REMARK   3    11  1.3704 -  1.3275    0.98     7185   416  0.0888 0.1029        
REMARK   3    12  1.3275 -  1.2896    0.98     7220   396  0.0876 0.1020        
REMARK   3    13  1.2896 -  1.2556    0.98     7191   354  0.0880 0.1078        
REMARK   3    14  1.2556 -  1.2250    0.98     7198   388  0.0863 0.1070        
REMARK   3    15  1.2250 -  1.1971    0.97     7102   411  0.0852 0.0974        
REMARK   3    16  1.1971 -  1.1716    0.98     7145   363  0.0863 0.0964        
REMARK   3    17  1.1716 -  1.1482    0.97     7110   399  0.0851 0.1008        
REMARK   3    18  1.1482 -  1.1265    0.97     7080   347  0.0888 0.1012        
REMARK   3    19  1.1265 -  1.1064    0.97     7129   377  0.0913 0.1106        
REMARK   3    20  1.1064 -  1.0877    0.97     7038   422  0.0925 0.1047        
REMARK   3    21  1.0877 -  1.0701    0.97     7086   371  0.0972 0.1189        
REMARK   3    22  1.0701 -  1.0536    0.96     7033   349  0.1054 0.1173        
REMARK   3    23  1.0536 -  1.0382    0.97     7056   354  0.1113 0.1236        
REMARK   3    24  1.0382 -  1.0235    0.96     6982   366  0.1220 0.1414        
REMARK   3    25  1.0235 -  1.0097    0.95     6953   349  0.1398 0.1603        
REMARK   3    26  1.0097 -  0.9966    0.93     6808   349  0.1590 0.1597        
REMARK   3    27  0.9966 -  0.9841    0.91     6660   342  0.1757 0.1803        
REMARK   3    28  0.9841 -  0.9723    0.88     6360   341  0.1927 0.1880        
REMARK   3    29  0.9723 -  0.9610    0.83     6075   285  0.2098 0.2089        
REMARK   3    30  0.9610 -  0.9502    0.77     5586   277  0.2396 0.2333        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.070            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 9.510            
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.007           3591                                  
REMARK   3   ANGLE     :  1.323           4926                                  
REMARK   3   CHIRALITY :  0.081            501                                  
REMARK   3   PLANARITY :  0.007            672                                  
REMARK   3   DIHEDRAL  : 14.633           1343                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4WKA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 02-OCT-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000203976.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 03-JUL-14                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SLS                                
REMARK 200  BEAMLINE                       : X06DA                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.8                                
REMARK 200  MONOCHROMATOR                  : BARTELS MONOCHROMATOR              
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 223038                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 0.950                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.0                               
REMARK 200  DATA REDUNDANCY                : 12.60                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 36.0800                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.95                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 0.98                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 82.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 9.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.76600                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.570                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 1GUV                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.68                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 23 % (W/V) POLYETHYLENE GLYCOL (PEG)     
REMARK 280  3350, 0.2 M POTASSIUM SODIUM TARTRATE (PST) AT PH 7.2, VAPOR        
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 290K                           
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       42.66350            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       51.85050            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       42.66350            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       51.85050            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 390 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 15210 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 1.0 KCAL/MOL                          
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 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     GLY A   391                                                      
REMARK 465     SER A   392                                                      
REMARK 465     HIS A   393                                                      
REMARK 465     HIS A   394                                                      
REMARK 465     HIS A   395                                                      
REMARK 465     HIS A   396                                                      
REMARK 465     HIS A   397                                                      
REMARK 465     HIS A   398                                                      
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   C1   TLA A   402     C4   TLA A   402     2565     0.36            
REMARK 500   C2   TLA A   402     H3   TLA A   402     2565     0.59            
REMARK 500   C2   TLA A   402     C3   TLA A   402     2565     0.66            
REMARK 500   O1   TLA A   402     O4   TLA A   402     2565     0.70            
REMARK 500   O11  TLA A   402     O41  TLA A   402     2565     0.78            
REMARK 500   O2   TLA A   402     H3   TLA A   402     2565     0.82            
REMARK 500   O11  TLA A   402     C4   TLA A   402     2565     1.03            
REMARK 500   C1   TLA A   402     C3   TLA A   402     2565     1.15            
REMARK 500   H2   TLA A   402     H3   TLA A   402     2565     1.22            
REMARK 500   O1   TLA A   402     C4   TLA A   402     2565     1.31            
REMARK 500   C1   TLA A   402     O4   TLA A   402     2565     1.38            
REMARK 500   C3   TLA A   402     C3   TLA A   402     2565     1.44            
REMARK 500   O3   TLA A   402     O3   TLA A   402     2565     1.51            
REMARK 500   C2   TLA A   402     C2   TLA A   402     2565     1.51            
REMARK 500   C1   TLA A   402     O41  TLA A   402     2565     1.54            
REMARK 500   O2   TLA A   402     C3   TLA A   402     2565     1.57            
REMARK 500   C3   TLA A   402     H2   TLA A   402     2565     1.58            
REMARK 500   C2   TLA A   402     C4   TLA A   402     2565     1.76            
REMARK 500   O11  TLA A   402     O4   TLA A   402     2565     1.89            
REMARK 500   C2   TLA A   402     O3   TLA A   402     2565     1.93            
REMARK 500   O1   TLA A   402     C3   TLA A   402     2565     1.96            
REMARK 500   O2   TLA A   402     O3   TLA A   402     2565     1.97            
REMARK 500   C1   TLA A   402     O3   TLA A   402     2565     1.99            
REMARK 500   C3   TLA A   402     O3   TLA A   402     2565     2.02            
REMARK 500   O1   TLA A   402     O3   TLA A   402     2565     2.02            
REMARK 500   O11  TLA A   402     C3   TLA A   402     2565     2.15            
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    SER A 226       64.73   -153.75                                   
REMARK 500    THR A 266       32.72    -93.55                                   
REMARK 500    LYS A 321       30.10     70.49                                   
REMARK 500    ASP A 328     -125.90     53.50                                   
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 A1008        DISTANCE = 11.26 ANGSTROMS                       
REMARK 525    HOH A1027        DISTANCE =  7.12 ANGSTROMS                       
REMARK 525    HOH A1043        DISTANCE =  5.97 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue TLA A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue TLA A 402                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1GUV   RELATED DB: PDB                                   
DBREF  4WKA A   22   386  UNP    Q13231   CHIT1_HUMAN     22    386             
SEQADV 4WKA LEU A  387  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA VAL A  388  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA PRO A  389  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA ARG A  390  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA GLY A  391  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA SER A  392  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA HIS A  393  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA HIS A  394  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA HIS A  395  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA HIS A  396  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA HIS A  397  UNP  Q13231              EXPRESSION TAG                 
SEQADV 4WKA HIS A  398  UNP  Q13231              EXPRESSION TAG                 
SEQRES   1 A  377  ALA LYS LEU VAL CYS TYR PHE THR ASN TRP ALA GLN TYR          
SEQRES   2 A  377  ARG GLN GLY GLU ALA ARG PHE LEU PRO LYS ASP LEU ASP          
SEQRES   3 A  377  PRO SER LEU CYS THR HIS LEU ILE TYR ALA PHE ALA GLY          
SEQRES   4 A  377  MET THR ASN HIS GLN LEU SER THR THR GLU TRP ASN ASP          
SEQRES   5 A  377  GLU THR LEU TYR GLN GLU PHE ASN GLY LEU LYS LYS MET          
SEQRES   6 A  377  ASN PRO LYS LEU LYS THR LEU LEU ALA ILE GLY GLY TRP          
SEQRES   7 A  377  ASN PHE GLY THR GLN LYS PHE THR ASP MET VAL ALA THR          
SEQRES   8 A  377  ALA ASN ASN ARG GLN THR PHE VAL ASN SER ALA ILE ARG          
SEQRES   9 A  377  PHE LEU ARG LYS TYR SER PHE ASP GLY LEU ASP LEU ASP          
SEQRES  10 A  377  TRP GLU TYR PRO GLY SER GLN GLY SER PRO ALA VAL ASP          
SEQRES  11 A  377  LYS GLU ARG PHE THR THR LEU VAL GLN ASP LEU ALA ASN          
SEQRES  12 A  377  ALA PHE GLN GLN GLU ALA GLN THR SER GLY LYS GLU ARG          
SEQRES  13 A  377  LEU LEU LEU SER ALA ALA VAL PRO ALA GLY GLN THR TYR          
SEQRES  14 A  377  VAL ASP ALA GLY TYR GLU VAL ASP LYS ILE ALA GLN ASN          
SEQRES  15 A  377  LEU ASP PHE VAL ASN LEU MET ALA TYR ASP PHE HIS GLY          
SEQRES  16 A  377  SER TRP GLU LYS VAL THR GLY HIS ASN SER PRO LEU TYR          
SEQRES  17 A  377  LYS ARG GLN GLU GLU SER GLY ALA ALA ALA SER LEU ASN          
SEQRES  18 A  377  VAL ASP ALA ALA VAL GLN GLN TRP LEU GLN LYS GLY THR          
SEQRES  19 A  377  PRO ALA SER LYS LEU ILE LEU GLY MET PRO THR TYR GLY          
SEQRES  20 A  377  ARG SER PHE THR LEU ALA SER SER SER ASP THR ARG VAL          
SEQRES  21 A  377  GLY ALA PRO ALA THR GLY SER GLY THR PRO GLY PRO PHE          
SEQRES  22 A  377  THR LYS GLU GLY GLY MET LEU ALA TYR TYR GLU VAL CYS          
SEQRES  23 A  377  SER TRP LYS GLY ALA THR LYS GLN ARG ILE GLN ASP GLN          
SEQRES  24 A  377  LYS VAL PRO TYR ILE PHE ARG ASP ASN GLN TRP VAL GLY          
SEQRES  25 A  377  PHE ASP ASP VAL GLU SER PHE LYS THR LYS VAL SER TYR          
SEQRES  26 A  377  LEU LYS GLN LYS GLY LEU GLY GLY ALA MET VAL TRP ALA          
SEQRES  27 A  377  LEU ASP LEU ASP ASP PHE ALA GLY PHE SER CYS ASN GLN          
SEQRES  28 A  377  GLY ARG TYR PRO LEU ILE GLN THR LEU ARG GLN GLU LEU          
SEQRES  29 A  377  SER LEU VAL PRO ARG GLY SER HIS HIS HIS HIS HIS HIS          
HET    TLA  A 401      14                                                       
HET    TLA  A 402      14                                                       
HETNAM     TLA L(+)-TARTARIC ACID                                               
FORMUL   2  TLA    2(C4 H6 O6)                                                  
FORMUL   4  HOH   *567(H2 O)                                                    
HELIX    1 AA1 TRP A   31  ARG A   35  5                                   5    
HELIX    2 AA2 GLN A   36  ARG A   40  5                                   5    
HELIX    3 AA3 LEU A   42  LEU A   46  5                                   5    
HELIX    4 AA4 ASN A   72  ASN A   87  1                                  16    
HELIX    5 AA5 THR A  103  ALA A  111  1                                   9    
HELIX    6 AA6 THR A  112  SER A  131  1                                  20    
HELIX    7 AA7 VAL A  150  GLY A  174  1                                  25    
HELIX    8 AA8 GLY A  187  TYR A  195  1                                   9    
HELIX    9 AA9 GLU A  196  GLN A  202  1                                   7    
HELIX   10 AB1 SER A  235  LEU A  241  5                                   7    
HELIX   11 AB2 ASN A  242  LYS A  253  1                                  12    
HELIX   12 AB3 PRO A  256  SER A  258  5                                   3    
HELIX   13 AB4 TYR A  303  CYS A  307  1                                   5    
HELIX   14 AB5 ASP A  336  LYS A  350  1                                  15    
HELIX   15 AB6 ALA A  359  ASP A  363  5                                   5    
HELIX   16 AB7 TYR A  375  LEU A  385  1                                  11    
SHEET    1 AA110 GLN A  65  SER A  67  0                                        
SHEET    2 AA110 HIS A  53  THR A  62 -1  N  GLY A  60   O  SER A  67           
SHEET    3 AA110 LYS A  91  GLY A  97  1  O  ALA A  95   N  ALA A  59           
SHEET    4 AA110 GLY A 134  ASP A 138  1  O  ASP A 136   N  LEU A  94           
SHEET    5 AA110 LEU A 179  PRO A 185  1  O  SER A 181   N  LEU A 137           
SHEET    6 AA110 PHE A 206  MET A 210  1  O  ASN A 208   N  ALA A 182           
SHEET    7 AA110 LEU A 260  PRO A 265  1  O  ILE A 261   N  VAL A 207           
SHEET    8 AA110 GLY A 354  TRP A 358  1  O  GLY A 354   N  LEU A 262           
SHEET    9 AA110 LYS A  23  THR A  29  1  N  VAL A  25   O  ALA A 355           
SHEET   10 AA110 HIS A  53  THR A  62  1  O  ILE A  55   N  PHE A  28           
SHEET    1 AA2 3 ALA A 285  SER A 288  0                                        
SHEET    2 AA2 3 TYR A 267  LEU A 273 -1  N  THR A 272   O  GLY A 287           
SHEET    3 AA2 3 MET A 300  ALA A 302 -1  O  LEU A 301   N  GLY A 268           
SHEET    1 AA3 5 ALA A 285  SER A 288  0                                        
SHEET    2 AA3 5 TYR A 267  LEU A 273 -1  N  THR A 272   O  GLY A 287           
SHEET    3 AA3 5 GLN A 330  GLY A 333 -1  O  TRP A 331   N  PHE A 271           
SHEET    4 AA3 5 VAL A 322  ARG A 327 -1  N  ILE A 325   O  VAL A 332           
SHEET    5 AA3 5 THR A 313  ILE A 317 -1  N  ILE A 317   O  VAL A 322           
SSBOND   1 CYS A   26    CYS A   51                          1555   1555  2.04  
SSBOND   2 CYS A  307    CYS A  370                          1555   1555  2.04  
CISPEP   1 ALA A   57    PHE A   58          0         3.41                     
CISPEP   2 GLU A  140    TYR A  141          0         2.36                     
CISPEP   3 GLU A  140    TYR A  141          0         7.17                     
CISPEP   4 TRP A  358    ALA A  359          0         4.52                     
SITE     1 AC1 11 VAL A 110  ALA A 111  THR A 112  ARG A 116                    
SITE     2 AC1 11 ARG A 154  HOH A 525  HOH A 534  HOH A 820                    
SITE     3 AC1 11 HOH A 837  HOH A 923  HOH A1049                               
SITE     1 AC2  5 SER A 308  TRP A 309  LYS A 310  ARG A 327                    
SITE     2 AC2  5 HOH A 540                                                     
CRYST1   85.327  103.701   41.688  90.00  90.00  90.00 P 21 21 2     4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.011720  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009643  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.023988        0.00000