HEADER    IMMUNE SYSTEM                           24-APR-01   1IIX              
OBSLTE     24-JUL-07 1IIX      1T89                                             
TITLE     CRYSTAL STRUCTURE OF A HUMAN FCG RECEPTOR IN COMPLEX WITH             
TITLE    2 AN FC FRAGMENT OF IGG1 (HEXAGONAL)                                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: IG GAMMA-1 CHAIN C REGION;                                 
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 MOL_ID: 2;                                                           
COMPND   5 MOLECULE: LOW AFFINITY IMMUNOGLOBULIN GAMMA FC REGION                
COMPND   6 RECEPTOR III-B;                                                      
COMPND   7 CHAIN: C;                                                            
COMPND   8 SYNONYM: FCRIII;                                                     
COMPND   9 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 MOL_ID: 2;                                                           
SOURCE   5 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   6 ORGANISM_COMMON: HUMAN;                                              
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   8 EXPRESSION_SYSTEM_COMMON: BACTERIA;                                  
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE  10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: PET28B                                    
KEYWDS    BETA SANDWICH, IMMUNOGLOBULIN FOLD                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.RADAEV,S.MOTYKA,W.-H.FRIDMAN,C.SAUTES-FRIDMAN,P.D.SUN               
REVDAT   4   24-JUL-07 1IIX    1       OBSLTE                                   
REVDAT   3   01-APR-03 1IIX    1       JRNL                                     
REVDAT   2   16-MAY-01 1IIX    1       JRNL   AUTHOR                            
REVDAT   1   09-MAY-01 1IIX    0                                                
JRNL        AUTH   S.RADAEV,S.MOTYKA,W.H.FRIDMAN,C.SAUTES-FRIDMAN,              
JRNL        AUTH 2 P.D.SUN                                                      
JRNL        TITL   THE STRUCTURE OF A HUMAN TYPE III FCGAMMA RECEPTOR           
JRNL        TITL 2 IN COMPLEX WITH FC.                                          
JRNL        REF    J.BIOL.CHEM.                  V. 276 16469 2001              
JRNL        REFN   ASTM JBCHA3  US ISSN 0021-9258                               
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION. 3.50 ANGSTROMS.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.9                                              
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 : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 14032                          
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) : 0.247                           
REMARK   3   FREE R VALUE                     : 0.327                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 415                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4724                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 202                                     
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 82.00                          
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.008                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.49                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : 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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1IIX COMPLIES WITH FORMAT V. 3.0, 1-DEC-2006                         
REMARK   4                                                                      
REMARK   4 THIS IS THE REMEDIATED VERSION OF THIS PDB ENTRY.                    
REMARK   4 REMEDIATED DATA FILE REVISION 3.101 (2007-05-29)                     
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB.                               
REMARK 100 THE RCSB ID CODE IS RCSB013313.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 12-JUN-2000                        
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.00                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X9B                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 15541                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 100.000                            
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 4.700                              
REMARK 200  R MERGE                    (I) : 0.08700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.60                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.80                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.42000                            
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: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 69.77                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.07                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG1500-12000, HEPES, PH 6.0, VAPOR      
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,2/3+Z                                            
REMARK 290       3555   -X+Y,-X,1/3+Z                                           
REMARK 290       4555   -X,-Y,1/2+Z                                             
REMARK 290       5555   Y,-X+Y,1/6+Z                                            
REMARK 290       6555   X-Y,X,5/6+Z                                             
REMARK 290       7555   Y,X,2/3-Z                                               
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,1/3-Z                                           
REMARK 290      10555   -Y,-X,1/6-Z                                             
REMARK 290      11555   -X+Y,Y,1/2-Z                                            
REMARK 290      12555   X,X-Y,5/6-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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      200.93333            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      100.46667            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000      150.70000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       50.23333            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000      251.16667            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000      200.93333            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000      100.46667            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       50.23333            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000      150.70000            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000      251.16667            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT             
REMARK 300 WHICH CONSISTS OF 3 CHAIN(S). SEE REMARK 350 FOR                     
REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S).                
REMARK 350                                                                      
REMARK 350 GENERATING THE BIOMOLECULE                                           
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 APPLY THE FOLLOWING TO CHAINS: A, D                                  
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 BIOMOLECULE: 2                                                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, E                                  
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 BIOMOLECULE: 3                                                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 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     HIS A   224                                                      
REMARK 465     THR A   225                                                      
REMARK 465     CYS A   226                                                      
REMARK 465     PRO A   227                                                      
REMARK 465     PRO A   228                                                      
REMARK 465     CYS A   229                                                      
REMARK 465     PRO A   230                                                      
REMARK 465     ALA A   231                                                      
REMARK 465     PRO A   232                                                      
REMARK 465     GLU A   233                                                      
REMARK 465     LEU A   234                                                      
REMARK 465     PRO A   445                                                      
REMARK 465     GLY A   446                                                      
REMARK 465     LYS A   447                                                      
REMARK 465     HIS B   224                                                      
REMARK 465     THR B   225                                                      
REMARK 465     CYS B   226                                                      
REMARK 465     PRO B   227                                                      
REMARK 465     PRO B   228                                                      
REMARK 465     CYS B   229                                                      
REMARK 465     PRO B   230                                                      
REMARK 465     SER B   444                                                      
REMARK 465     PRO B   445                                                      
REMARK 465     GLY B   446                                                      
REMARK 465     LYS B   447                                                      
REMARK 465     ARG C     1                                                      
REMARK 465     THR C     2                                                      
REMARK 465     GLU C     3                                                      
REMARK 465     ASP C     4                                                      
REMARK 465     ILE C   172                                                      
REMARK 465     THR C   173                                                      
REMARK 465     GLN C   174                                                      
REMARK 465     GLY C   175                                                      
REMARK 465     LEU C   176                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI                             
REMARK 500   O    ASN A   286     N    LYS A   288              2.10            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),F6.3)                  
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    THR A 289   CA    THR A 289   CB    -0.072                        
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: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    VAL A 266   N   -  CA  -  C   ANGL. DEV. = -9.8 DEGREES           
REMARK 500    PRO A 291   C   -  N   -  CD  ANGL. DEV. =-13.0 DEGREES           
REMARK 500    GLU A 293   N   -  CA  -  C   ANGL. DEV. =  9.6 DEGREES           
REMARK 500    TYR A 296   N   -  CA  -  C   ANGL. DEV. =  9.5 DEGREES           
REMARK 500    SER A 298   N   -  CA  -  C   ANGL. DEV. =-14.4 DEGREES           
REMARK 500    GLY A 402   N   -  CA  -  C   ANGL. DEV. =-11.5 DEGREES           
REMARK 500    GLU B 233   N   -  CA  -  C   ANGL. DEV. = -9.8 DEGREES           
REMARK 500    LEU B 234   N   -  CA  -  C   ANGL. DEV. =  9.6 DEGREES           
REMARK 500    PRO B 387   N   -  CA  -  C   ANGL. DEV. = 10.1 DEGREES           
REMARK 500    PRO B 387   C   -  N   -  CA  ANGL. DEV. = 19.1 DEGREES           
REMARK 500    PRO B 387   C   -  N   -  CD  ANGL. DEV. =-15.3 DEGREES           
REMARK 500    SER C  54   N   -  CA  -  C   ANGL. DEV. =-10.3 DEGREES           
REMARK 500    ASP C  80   N   -  CA  -  C   ANGL. DEV. =-10.1 DEGREES           
REMARK 500    GLY C  89   N   -  CA  -  C   ANGL. DEV. = 10.5 DEGREES           
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  M RES CSSEQI        PSI       PHI                                   
REMARK 500    HIS A 285      -94.60     49.33                                   
REMARK 500    ARG A 292      147.40    108.61                                   
REMARK 500    ALA B 287      -92.52     46.72                                   
REMARK 500    ARG B 292       77.15    101.61                                   
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1FNL   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF A HUMAN             
REMARK 900 FCGRIII                                                              
REMARK 900 RELATED ID: 1IIS   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A HUMAN FCG RECEPTOR IN COMPLEX WITH            
REMARK 900 AN FC FRAGMENT OF IGG1 (ORTHORHOMBIC)                                
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE AUTHORS STATE THAT SEQUENCE MISMATCHES ARE DUE                   
REMARK 999 TO SLIGHT DIFFERENCES IN ANTIBODY SEQUENCES FROM                     
REMARK 999 DIFFERENT PATIENTS. THE PROVIDED SEQUENCE IS CORRECT.                
DBREF  1IIX A  224   447  UNP    P01857   GC1_HUMAN      107    330             
DBREF  1IIX B  224   447  UNP    P01857   GC1_HUMAN      107    330             
DBREF  1IIX C    1   176  UNP    O75015   FC3B_HUMAN      19    194             
SEQADV 1IIX GLN A  272  UNP  P01857    GLU   155 SEE REMARK 999                 
SEQADV 1IIX GLN A  283  UNP  P01857    GLU   166 SEE REMARK 999                 
SEQADV 1IIX GLN A  294  UNP  P01857    GLU   177 SEE REMARK 999                 
SEQADV 1IIX ASN A  312  UNP  P01857    ASP   195 SEE REMARK 999                 
SEQADV 1IIX ASP A  315  UNP  P01857    ASN   198 SEE REMARK 999                 
SEQADV 1IIX GLU A  356  UNP  P01857    ASP   239 SEE REMARK 999                 
SEQADV 1IIX MET A  358  UNP  P01857    LEU   241 SEE REMARK 999                 
SEQADV 1IIX GLN B  272  UNP  P01857    GLU   155 SEE REMARK 999                 
SEQADV 1IIX GLN B  283  UNP  P01857    GLU   166 SEE REMARK 999                 
SEQADV 1IIX GLN B  294  UNP  P01857    GLU   177 SEE REMARK 999                 
SEQADV 1IIX ASN B  312  UNP  P01857    ASP   195 SEE REMARK 999                 
SEQADV 1IIX ASP B  315  UNP  P01857    ASN   198 SEE REMARK 999                 
SEQADV 1IIX GLU B  356  UNP  P01857    ASP   239 SEE REMARK 999                 
SEQADV 1IIX MET B  358  UNP  P01857    LEU   241 SEE REMARK 999                 
SEQRES   1 A  224  HIS THR CYS PRO PRO CYS PRO ALA PRO GLU LEU LEU GLY          
SEQRES   2 A  224  GLY PRO SER VAL PHE LEU PHE PRO PRO LYS PRO LYS ASP          
SEQRES   3 A  224  THR LEU MET ILE SER ARG THR PRO GLU VAL THR CYS VAL          
SEQRES   4 A  224  VAL VAL ASP VAL SER HIS GLU ASP PRO GLN VAL LYS PHE          
SEQRES   5 A  224  ASN TRP TYR VAL ASP GLY VAL GLN VAL HIS ASN ALA LYS          
SEQRES   6 A  224  THR LYS PRO ARG GLU GLN GLN TYR ASN SER THR TYR ARG          
SEQRES   7 A  224  VAL VAL SER VAL LEU THR VAL LEU HIS GLN ASN TRP LEU          
SEQRES   8 A  224  ASP GLY LYS GLU TYR LYS CYS LYS VAL SER ASN LYS ALA          
SEQRES   9 A  224  LEU PRO ALA PRO ILE GLU LYS THR ILE SER LYS ALA LYS          
SEQRES  10 A  224  GLY GLN PRO ARG GLU PRO GLN VAL TYR THR LEU PRO PRO          
SEQRES  11 A  224  SER ARG GLU GLU MET THR LYS ASN GLN VAL SER LEU THR          
SEQRES  12 A  224  CYS LEU VAL LYS GLY PHE TYR PRO SER ASP ILE ALA VAL          
SEQRES  13 A  224  GLU TRP GLU SER ASN GLY GLN PRO GLU ASN ASN TYR LYS          
SEQRES  14 A  224  THR THR PRO PRO VAL LEU ASP SER ASP GLY SER PHE PHE          
SEQRES  15 A  224  LEU TYR SER LYS LEU THR VAL ASP LYS SER ARG TRP GLN          
SEQRES  16 A  224  GLN GLY ASN VAL PHE SER CYS SER VAL MET HIS GLU ALA          
SEQRES  17 A  224  LEU HIS ASN HIS TYR THR GLN LYS SER LEU SER LEU SER          
SEQRES  18 A  224  PRO GLY LYS                                                  
SEQRES   1 B  224  HIS THR CYS PRO PRO CYS PRO ALA PRO GLU LEU LEU GLY          
SEQRES   2 B  224  GLY PRO SER VAL PHE LEU PHE PRO PRO LYS PRO LYS ASP          
SEQRES   3 B  224  THR LEU MET ILE SER ARG THR PRO GLU VAL THR CYS VAL          
SEQRES   4 B  224  VAL VAL ASP VAL SER HIS GLU ASP PRO GLN VAL LYS PHE          
SEQRES   5 B  224  ASN TRP TYR VAL ASP GLY VAL GLN VAL HIS ASN ALA LYS          
SEQRES   6 B  224  THR LYS PRO ARG GLU GLN GLN TYR ASN SER THR TYR ARG          
SEQRES   7 B  224  VAL VAL SER VAL LEU THR VAL LEU HIS GLN ASN TRP LEU          
SEQRES   8 B  224  ASP GLY LYS GLU TYR LYS CYS LYS VAL SER ASN LYS ALA          
SEQRES   9 B  224  LEU PRO ALA PRO ILE GLU LYS THR ILE SER LYS ALA LYS          
SEQRES  10 B  224  GLY GLN PRO ARG GLU PRO GLN VAL TYR THR LEU PRO PRO          
SEQRES  11 B  224  SER ARG GLU GLU MET THR LYS ASN GLN VAL SER LEU THR          
SEQRES  12 B  224  CYS LEU VAL LYS GLY PHE TYR PRO SER ASP ILE ALA VAL          
SEQRES  13 B  224  GLU TRP GLU SER ASN GLY GLN PRO GLU ASN ASN TYR LYS          
SEQRES  14 B  224  THR THR PRO PRO VAL LEU ASP SER ASP GLY SER PHE PHE          
SEQRES  15 B  224  LEU TYR SER LYS LEU THR VAL ASP LYS SER ARG TRP GLN          
SEQRES  16 B  224  GLN GLY ASN VAL PHE SER CYS SER VAL MET HIS GLU ALA          
SEQRES  17 B  224  LEU HIS ASN HIS TYR THR GLN LYS SER LEU SER LEU SER          
SEQRES  18 B  224  PRO GLY LYS                                                  
SEQRES   1 C  176  ARG THR GLU ASP LEU PRO LYS ALA VAL VAL PHE LEU GLU          
SEQRES   2 C  176  PRO GLN TRP TYR SER VAL LEU GLU LYS ASP SER VAL THR          
SEQRES   3 C  176  LEU LYS CYS GLN GLY ALA TYR SER PRO GLU ASP ASN SER          
SEQRES   4 C  176  THR GLN TRP PHE HIS ASN GLU SER LEU ILE SER SER GLN          
SEQRES   5 C  176  ALA SER SER TYR PHE ILE ASP ALA ALA THR VAL ASN ASP          
SEQRES   6 C  176  SER GLY GLU TYR ARG CYS GLN THR ASN LEU SER THR LEU          
SEQRES   7 C  176  SER ASP PRO VAL GLN LEU GLU VAL HIS ILE GLY TRP LEU          
SEQRES   8 C  176  LEU LEU GLN ALA PRO ARG TRP VAL PHE LYS GLU GLU ASP          
SEQRES   9 C  176  PRO ILE HIS LEU ARG CYS HIS SER TRP LYS ASN THR ALA          
SEQRES  10 C  176  LEU HIS LYS VAL THR TYR LEU GLN ASN GLY LYS ASP ARG          
SEQRES  11 C  176  LYS TYR PHE HIS HIS ASN SER ASP PHE HIS ILE PRO LYS          
SEQRES  12 C  176  ALA THR LEU LYS ASP SER GLY SER TYR PHE CYS ARG GLY          
SEQRES  13 C  176  LEU VAL GLY SER LYS ASN VAL SER SER GLU THR VAL ASN          
SEQRES  14 C  176  ILE THR ILE THR GLN GLY LEU                                  
MODRES 1IIX ASN A  297  ASN  GLYCOSYLATION SITE                                 
MODRES 1IIX ASN B  297  ASN  GLYCOSYLATION SITE                                 
HET    NAG  D   1      14                                                       
HET    NAG  D   2      14                                                       
HET    MAN  D   3      11                                                       
HET    MAN  D   4      11                                                       
HET    MAN  D   5      11                                                       
HET    NAG  D   6      14                                                       
HET    MAN  D   8      11                                                       
HET    MAN  D   9      11                                                       
HET    MAN      7      12                                                       
HET    NAG  E   1      14                                                       
HET    NAG  E   2      14                                                       
HET    MAN  E   3      11                                                       
HET    MAN  E   4      11                                                       
HET    MAN  E   5      11                                                       
HET    MAN  E   6      11                                                       
HET    MAN  E   7      11                                                       
HET    FUC  E   8      10                                                       
HETNAM     NAG N-ACETYL-D-GLUCOSAMINE                                           
HETNAM     MAN ALPHA-D-MANNOSE                                                  
HETNAM     FUC ALPHA-L-FUCOSE                                                   
HETSYN     NAG NAG                                                              
FORMUL   4  NAG    5(C8 H15 N O6)                                               
FORMUL   4  MAN    11(C6 H12 O6)                                                
FORMUL   6  FUC    C6 H12 O5                                                    
HELIX    1   1 LYS A  246  LEU A  251  5                                   6    
HELIX    2   2 LEU A  309  ASP A  315  1                                   7    
HELIX    3   3 SER A  354  MET A  358  5                                   5    
HELIX    4   4 ASP A  413  GLN A  419  1                                   7    
HELIX    5   5 LYS B  246  MET B  252  1                                   7    
HELIX    6   6 LEU B  309  GLY B  316  1                                   8    
HELIX    7   7 SER B  354  THR B  366  1                                  13    
HELIX    8   8 ASP B  413  GLN B  419  1                                   7    
HELIX    9   9 LYS C  114  THR C  116  5                                   3    
HELIX   10  10 THR C  145  SER C  149  5                                   5    
SHEET    1   A 4 SER A 239  PHE A 243  0                                        
SHEET    2   A 4 GLU A 269  VAL A 266 -1  O  THR A 260   N  PHE A 243           
SHEET    3   A 4 TYR A 300  THR A 307 -1  N  TYR A 300   O  VAL A 266           
SHEET    4   A 4 THR A 289  LYS A 290 -1  N  LYS A 290   O  VAL A 305           
SHEET    1   B 4 SER A 239  PHE A 243  0                                        
SHEET    2   B 4 GLU A 269  VAL A 266 -1  O  THR A 260   N  PHE A 243           
SHEET    3   B 4 TYR A 300  THR A 307 -1  N  TYR A 300   O  VAL A 266           
SHEET    4   B 4 GLU A 293  GLN A 295 -1  N  GLN A 294   O  ARG A 301           
SHEET    1   C 4 VAL A 282  GLN A 294  0                                        
SHEET    2   C 4 LYS A 274  VAL A 279 -1  N  VAL A 279   O  VAL A 282           
SHEET    3   C 4 TYR A 319  SER A 324 -1  N  LYS A 320   O  TYR A 278           
SHEET    4   C 4 ILE A 332  ILE A 336 -1  N  ILE A 332   O  VAL A 323           
SHEET    1   D 4 GLN A 347  LEU A 351  0                                        
SHEET    2   D 4 THR A 366  PHE A 372 -1  O  THR A 366   N  LEU A 351           
SHEET    3   D 4 PHE A 404  LEU A 406 -1  O  PHE A 404   N  PHE A 372           
SHEET    4   D 4 VAL A 397  LEU A 398 -1  N  VAL A 397   O  PHE A 405           
SHEET    1   E 3 TRP A 381  GLU A 382  0                                        
SHEET    2   E 3 VAL A 422  VAL A 427 -1  O  SER A 424   N  GLU A 382           
SHEET    3   E 3 THR A 437  SER A 442 -1  O  THR A 437   N  VAL A 427           
SHEET    1   F 3 VAL B 240  PHE B 243  0                                        
SHEET    2   F 3 GLU B 258  VAL B 273 -1  O  THR B 260   N  PHE B 243           
SHEET    3   F 3 TYR B 300  THR B 307 -1  N  TYR B 300   O  VAL B 273           
SHEET    1   G 3 TRP B 277  VAL B 279  0                                        
SHEET    2   G 3 TYR B 319  VAL B 323 -1  O  LYS B 320   N  TYR B 278           
SHEET    3   G 3 ILE B 332  ILE B 336 -1  N  ILE B 332   O  VAL B 323           
SHEET    1   H 4 GLN B 347  LEU B 351  0                                        
SHEET    2   H 4 SER B 364  PHE B 372 -1  O  THR B 366   N  LEU B 351           
SHEET    3   H 4 PHE B 404  THR B 411 -1  N  PHE B 404   O  PHE B 372           
SHEET    4   H 4 TYR B 391  THR B 393 -1  O  LYS B 392   N  LYS B 409           
SHEET    1   I 3 ALA B 378  GLU B 382  0                                        
SHEET    2   I 3 PHE B 423  MET B 428 -1  N  SER B 424   O  GLU B 382           
SHEET    3   I 3 SER B 440  LEU B 441 -1  N  LEU B 441   O  PHE B 423           
SHEET    1   J 3 VAL C   9  PHE C  11  0                                        
SHEET    2   J 3 VAL C  25  GLN C  30 -1  N  LYS C  28   O  PHE C  11           
SHEET    3   J 3 SER C  55  ILE C  58 -1  O  TYR C  56   N  LEU C  27           
SHEET    1   K 4 SER C  18  LEU C  20  0                                        
SHEET    2   K 4 VAL C  86  HIS C  87  1  O  GLU C  85   N  VAL C  19           
SHEET    3   K 4 GLY C  67  THR C  77 -1  O  GLY C  67   N  LEU C  84           
SHEET    4   K 4 THR C  40  HIS C  44 -1  O  GLN C  41   N  GLN C  72           
SHEET    1   L 2 LEU C  91  GLN C  94  0                                        
SHEET    2   L 2 ARG C 109  SER C 112 -1  O  ARG C 109   N  GLN C  94           
SHEET    1   M 4 LYS C 128  HIS C 135  0                                        
SHEET    2   M 4 HIS C 119  GLN C 125 -1  N  LYS C 120   O  HIS C 134           
SHEET    3   M 4 GLY C 150  VAL C 158 -1  N  PHE C 153   O  LEU C 124           
SHEET    4   M 4 LYS C 161  SER C 164 -1  O  LYS C 161   N  VAL C 158           
SHEET    1   N 4 LYS C 128  HIS C 135  0                                        
SHEET    2   N 4 HIS C 119  GLN C 125 -1  N  LYS C 120   O  HIS C 134           
SHEET    3   N 4 GLY C 150  VAL C 158 -1  N  PHE C 153   O  LEU C 124           
SHEET    4   N 4 VAL C 168  ILE C 170 -1  O  VAL C 168   N  TYR C 152           
SSBOND   1 CYS A  261    CYS A  321                                             
SSBOND   2 CYS A  367    CYS A  425                                             
SSBOND   3 CYS B  261    CYS B  321                                             
SSBOND   4 CYS B  367    CYS B  425                                             
SSBOND   5 CYS C   29    CYS C   71                                             
SSBOND   6 CYS C  110    CYS C  154                                             
LINK         ND2 ASN A 297                 C1  NAG D   1                        
LINK         ND2 ASN B 297                 C1  NAG E   1                        
LINK         O4  NAG D   1                 C1  NAG D   2                        
LINK         O6  NAG D   1                 C1  MAN D   9                        
LINK         O4  NAG D   2                 C1  MAN D   3                        
LINK         O3  MAN D   3                 C1  MAN D   4                        
LINK         O6  MAN D   3                 C1  MAN D   5                        
LINK         O2  MAN D   5                 C1  NAG D   6                        
LINK         O6  NAG D   6                 C1  MAN D   8                        
LINK         O4  NAG E   1                 C1  NAG E   2                        
LINK         O6  NAG E   1                 C1  FUC E   8                        
LINK         O4  NAG E   2                 C1  MAN E   3                        
LINK         O3  MAN E   3                 C1  MAN E   4                        
LINK         O6  MAN E   3                 C1  MAN E   5                        
LINK         O6  MAN E   4                 C1  MAN E   7                        
LINK         O6  MAN E   5                 C1  MAN E   6                        
CISPEP   1 TYR A  373    PRO A  374          0        -0.56                     
CISPEP   2 TYR B  373    PRO B  374          0        -0.55                     
CISPEP   3 GLU C   13    PRO C   14          0         0.45                     
CRYST1  114.984  114.984  301.400  90.00  90.00 120.00 P 65 2 2     24          
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      0.008697  0.005021  0.000000        0.00000                         
SCALE2      0.000000  0.010042  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.003318        0.00000