HEADER    IMMUNE SYSTEM                           24-NOV-10   3PP4              
TITLE     EPITOPE CHARACTERIZATION AND CRYSTAL STRUCTURE OF GA101 PROVIDE       
TITLE    2 INSIGHTS INTO THE MOLECULAR BASIS FOR THE TYPE I / TYPE II           
TITLE    3 DISTINCTION OF ANTI- CD20 ANTIBODIES                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: GA101 FAB HEAVY CHAIN;                                     
COMPND   3 CHAIN: H;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: GA101 FAB LIGHT CHAIN;                                     
COMPND   7 CHAIN: L;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: B-LYMPHOCYTE ANTIGEN CD20;                                 
COMPND  11 CHAIN: P;                                                            
COMPND  12 FRAGMENT: LARGE EXTRACELLULAR LOOP (UNP RESIDUES 163-187);           
COMPND  13 SYNONYM: B-LYMPHOCYTE SURFACE ANTIGEN B1, BP35, LEUKOCYTE SURFACE    
COMPND  14 ANTIGEN LEU-16, MEMBRANE-SPANNING 4-DOMAINS SUBFAMILY A MEMBER 1;    
COMPND  15 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   3 ORGANISM_COMMON: MOUSE;                                              
SOURCE   4 ORGANISM_TAXID: 10090;                                               
SOURCE   5 EXPRESSION_SYSTEM: CRICETULUS GRISEUS;                               
SOURCE   6 EXPRESSION_SYSTEM_COMMON: CHINESE HAMSTER;                           
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 10029;                                      
SOURCE   8 EXPRESSION_SYSTEM_CELL_LINE: CHINESE HAMSTER OVARY (CHO);            
SOURCE   9 MOL_ID: 2;                                                           
SOURCE  10 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  11 ORGANISM_COMMON: MOUSE;                                              
SOURCE  12 ORGANISM_TAXID: 10090;                                               
SOURCE  13 EXPRESSION_SYSTEM: CRICETULUS GRISEUS;                               
SOURCE  14 EXPRESSION_SYSTEM_COMMON: CHINESE HAMSTER;                           
SOURCE  15 EXPRESSION_SYSTEM_TAXID: 10029;                                      
SOURCE  16 EXPRESSION_SYSTEM_CELL_LINE: CHINESE HAMSTER OVARY (CHO);            
SOURCE  17 MOL_ID: 3;                                                           
SOURCE  18 SYNTHETIC: YES;                                                      
SOURCE  19 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  20 ORGANISM_COMMON: HUMAN;                                              
SOURCE  21 ORGANISM_TAXID: 9606;                                                
SOURCE  22 OTHER_DETAILS: CD20                                                  
KEYWDS    ANTIBODY FAB FRAGMENT IG-DOMAIN, CD20, CYCLIC PEPTIDE, ANTIBODY       
KEYWDS   2 ANTIGEN, IMMUNE SYSTEM                                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.-P.HOPFNER,A.LAMMENS                                                
REVDAT   4   30-OCT-24 3PP4    1       REMARK                                   
REVDAT   3   06-SEP-23 3PP4    1       REMARK                                   
REVDAT   2   27-JUL-11 3PP4    1       JRNL                                     
REVDAT   1   13-APR-11 3PP4    0                                                
JRNL        AUTH   G.NIEDERFELLNER,A.LAMMENS,O.MUNDIGL,G.J.GEORGES,W.SCHAEFER,  
JRNL        AUTH 2 M.SCHWAIGER,A.FRANKE,K.WIECHMANN,S.JENEWEIN,J.W.SLOOTSTRA,   
JRNL        AUTH 3 P.TIMMERMAN,A.BRANNSTROM,F.LINDSTROM,E.MOSSNER,P.UMANA,      
JRNL        AUTH 4 K.P.HOPFNER,C.KLEIN                                          
JRNL        TITL   EPITOPE CHARACTERIZATION AND CRYSTAL STRUCTURE OF GA101      
JRNL        TITL 2 PROVIDE INSIGHTS INTO THE MOLECULAR BASIS FOR TYPE I/II      
JRNL        TITL 3 DISTINCTION OF CD20 ANTIBODIES.                              
JRNL        REF    BLOOD                         V. 118   358 2011              
JRNL        REFN                   ISSN 0006-4971                               
JRNL        PMID   21444918                                                     
JRNL        DOI    10.1182/BLOOD-2010-09-305847                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE)                               
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) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 42.95                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.970                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 60342                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.139                           
REMARK   3   R VALUE            (WORKING SET) : 0.137                           
REMARK   3   FREE R VALUE                     : 0.187                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 3.310                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2000                            
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 42.9655 -  3.8538    0.97     4179   143  0.1427 0.1585        
REMARK   3     2  3.8538 -  3.0592    1.00     4249   146  0.1266 0.1694        
REMARK   3     3  3.0592 -  2.6725    1.00     4222   145  0.1397 0.1862        
REMARK   3     4  2.6725 -  2.4282    1.00     4218   144  0.1377 0.1903        
REMARK   3     5  2.4282 -  2.2542    0.99     4163   143  0.1327 0.1948        
REMARK   3     6  2.2542 -  2.1213    0.99     4207   144  0.1242 0.2009        
REMARK   3     7  2.1213 -  2.0150    0.99     4188   144  0.1205 0.1814        
REMARK   3     8  2.0150 -  1.9273    0.99     4159   142  0.1197 0.1880        
REMARK   3     9  1.9273 -  1.8531    0.99     4170   144  0.1175 0.1987        
REMARK   3    10  1.8531 -  1.7892    0.99     4168   142  0.1104 0.1810        
REMARK   3    11  1.7892 -  1.7332    0.98     4122   142  0.1112 0.1721        
REMARK   3    12  1.7332 -  1.6837    0.98     4154   142  0.1156 0.1864        
REMARK   3    13  1.6837 -  1.6394    0.98     4129   141  0.1273 0.2034        
REMARK   3    14  1.6394 -  1.5994    0.95     4014   138  0.1354 0.1985        
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              : 0.38                                          
REMARK   3   B_SOL              : 76.51                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.170            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : NULL             
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) : 1.13190                                              
REMARK   3    B22 (A**2) : -0.37770                                             
REMARK   3    B33 (A**2) : -7.37750                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 2.58230                                              
REMARK   3    B23 (A**2) : 0.00000                                              
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      :  0.004           3878                                  
REMARK   3   ANGLE     :  0.946           5354                                  
REMARK   3   CHIRALITY :  0.060            618                                  
REMARK   3   PLANARITY :  0.004            687                                  
REMARK   3   DIHEDRAL  : 15.192           1457                                  
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 3PP4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-NOV-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000062646.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 13-NOV-08                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID23-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : SILICON (1 1 1) CHANNEL-CUT        
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 60342                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
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     (%) : 98.4                               
REMARK 200  DATA REDUNDANCY                : 3.700                              
REMARK 200  R MERGE                    (I) : 0.05500                            
REMARK 200  R SYM                      (I) : 0.04300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 17.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.70                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.70                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.24700                            
REMARK 200  R SYM FOR SHELL            (I) : 0.21000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.900                              
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: 3PP3                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.32                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 16% (W/V) PEG4000, 4% (V/V)              
REMARK 280  ISOPROPANOL, 0.1 M SODIUM ACETATE, PH 6.0, VAPOR DIFFUSION,         
REMARK 280  HANGING DROP, TEMPERATURE 293K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
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       42.02500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       42.95000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       42.02500            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       42.95000            
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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4910 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 21090 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -42.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: H, L, P                               
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     SER H   221                                                      
REMARK 465     CYS H   222                                                      
REMARK 465     ASP H   223                                                      
REMARK 465     LYS H   224                                                      
REMARK 465     ASN P   163                                                      
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     GLU L   218                                                      
REMARK 475     CYS L   219                                                      
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 H    1   CG   CD   OE1  NE2                                  
REMARK 480     SER H   30   CA   CB   OG                                        
REMARK 480     LYS H   65   CD   CE   NZ                                        
REMARK 480     LYS H  135   CD   CE   NZ                                        
REMARK 480     LYS H  207   CG   CD   CE   NZ                                   
REMARK 480     LYS H  212   CD   CE   NZ                                        
REMARK 480     LYS H  216   CG   CD   CE   NZ                                   
REMARK 480     LYS H  220   O    CB   CG   CD   CE   NZ                         
REMARK 480     LYS L  112   NZ                                                  
REMARK 480     LYS L  131   CG   CD   CE   NZ                                   
REMARK 480     GLU L  148   CG   CD   OE1  OE2                                  
REMARK 480     LYS L  150   CD   CE   NZ                                        
REMARK 480     GLN L  152   CG   CD   OE1  NE2                                  
REMARK 480     ASN L  157   ND2                                                 
REMARK 480     LYS L  188   CD   CE   NZ                                        
REMARK 480     LYS L  193   CB   CG   CD   CE   NZ                              
REMARK 480     LYS L  195   CB   CG   CD   CE                                   
REMARK 480     VAL L  196   CB   CG1  CG2                                       
REMARK 480     ARG L  216   CG   CD   NE   CZ   NH1  NH2                        
REMARK 480     ILE P  164   N    CA   CB   CG1  CG2  CD1                        
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           DISTANCE          
REMARK 500   O    PHE H    64     O    HOH H   781              2.10            
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    TRP H 105     -133.83     61.91                                   
REMARK 500    MET L  56      -46.50     75.46                                   
REMARK 500    MET L  56      -52.50     81.03                                   
REMARK 500    SER L  72     -157.73   -105.09                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL H 225                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3PP3   RELATED DB: PDB                                   
REMARK 900 GA101 FAB WITHOUT CD20 PEPTIDE                                       
DBREF  3PP4 P  163   187  UNP    P11836   CD20_HUMAN     163    187             
DBREF  3PP4 H    1   224  PDB    3PP4     3PP4             1    224             
DBREF  3PP4 L    1   219  PDB    3PP4     3PP4             1    219             
SEQRES   1 H  224  GLN VAL GLN LEU VAL GLN SER GLY ALA GLU VAL LYS LYS          
SEQRES   2 H  224  PRO GLY SER SER VAL LYS VAL SER CYS LYS ALA SER GLY          
SEQRES   3 H  224  TYR ALA PHE SER TYR SER TRP ILE ASN TRP VAL ARG GLN          
SEQRES   4 H  224  ALA PRO GLY GLN GLY LEU GLU TRP MET GLY ARG ILE PHE          
SEQRES   5 H  224  PRO GLY ASP GLY ASP THR ASP TYR ASN GLY LYS PHE LYS          
SEQRES   6 H  224  GLY ARG VAL THR ILE THR ALA ASP LYS SER THR SER THR          
SEQRES   7 H  224  ALA TYR MET GLU LEU SER SER LEU ARG SER GLU ASP THR          
SEQRES   8 H  224  ALA VAL TYR TYR CYS ALA ARG ASN VAL PHE ASP GLY TYR          
SEQRES   9 H  224  TRP LEU VAL TYR TRP GLY GLN GLY THR LEU VAL THR VAL          
SEQRES  10 H  224  SER SER ALA SER THR LYS GLY PRO SER VAL PHE PRO LEU          
SEQRES  11 H  224  ALA PRO SER SER LYS SER THR SER GLY GLY THR ALA ALA          
SEQRES  12 H  224  LEU GLY CYS LEU VAL LYS ASP TYR PHE PRO GLU PRO VAL          
SEQRES  13 H  224  THR VAL SER TRP ASN SER GLY ALA LEU THR SER GLY VAL          
SEQRES  14 H  224  HIS THR PHE PRO ALA VAL LEU GLN SER SER GLY LEU TYR          
SEQRES  15 H  224  SER LEU SER SER VAL VAL THR VAL PRO SER SER SER LEU          
SEQRES  16 H  224  GLY THR GLN THR TYR ILE CYS ASN VAL ASN HIS LYS PRO          
SEQRES  17 H  224  SER ASN THR LYS VAL ASP LYS LYS VAL GLU PRO LYS SER          
SEQRES  18 H  224  CYS ASP LYS                                                  
SEQRES   1 L  219  ASP ILE VAL MET THR GLN THR PRO LEU SER LEU PRO VAL          
SEQRES   2 L  219  THR PRO GLY GLU PRO ALA SER ILE SER CYS ARG SER SER          
SEQRES   3 L  219  LYS SER LEU LEU HIS SER ASN GLY ILE THR TYR LEU TYR          
SEQRES   4 L  219  TRP TYR LEU GLN LYS PRO GLY GLN SER PRO GLN LEU LEU          
SEQRES   5 L  219  ILE TYR GLN MET SER ASN LEU VAL SER GLY VAL PRO ASP          
SEQRES   6 L  219  ARG PHE SER GLY SER GLY SER GLY THR ASP PHE THR LEU          
SEQRES   7 L  219  LYS ILE SER ARG VAL GLU ALA GLU ASP VAL GLY VAL TYR          
SEQRES   8 L  219  TYR CYS ALA GLN ASN LEU GLU LEU PRO TYR THR PHE GLY          
SEQRES   9 L  219  GLY GLY THR LYS VAL GLU ILE LYS ARG THR VAL ALA ALA          
SEQRES  10 L  219  PRO SER VAL PHE ILE PHE PRO PRO SER ASP GLU GLN LEU          
SEQRES  11 L  219  LYS SER GLY THR ALA SER VAL VAL CYS LEU LEU ASN ASN          
SEQRES  12 L  219  PHE TYR PRO ARG GLU ALA LYS VAL GLN TRP LYS VAL ASP          
SEQRES  13 L  219  ASN ALA LEU GLN SER GLY ASN SER GLN GLU SER VAL THR          
SEQRES  14 L  219  GLU GLN ASP SER LYS ASP SER THR TYR SER LEU SER SER          
SEQRES  15 L  219  THR LEU THR LEU SER LYS ALA ASP TYR GLU LYS HIS LYS          
SEQRES  16 L  219  VAL TYR ALA CYS GLU VAL THR HIS GLN GLY LEU SER SER          
SEQRES  17 L  219  PRO VAL THR LYS SER PHE ASN ARG GLY GLU CYS                  
SEQRES   1 P   25  ASN ILE TYR ASN CYS GLU PRO ALA ASN PRO SER GLU LYS          
SEQRES   2 P   25  ASN SER PRO SER THR GLN TYR CYS TYR SER ILE GLN              
HET     CL  H 225       1                                                       
HETNAM      CL CHLORIDE ION                                                     
FORMUL   4   CL    CL 1-                                                        
FORMUL   5  HOH   *759(H2 O)                                                    
HELIX    1   1 ALA H   28  SER H   32  5                                   5    
HELIX    2   2 ARG H   87  THR H   91  5                                   5    
HELIX    3   3 SER H  162  ALA H  164  5                                   3    
HELIX    4   4 SER H  193  LEU H  195  5                                   3    
HELIX    5   5 LYS H  207  ASN H  210  5                                   4    
HELIX    6   6 GLU L   84  VAL L   88  5                                   5    
HELIX    7   7 SER L  126  SER L  132  1                                   7    
HELIX    8   8 LYS L  188  LYS L  193  1                                   6    
HELIX    9   9 ASN P  171  LYS P  175  5                                   5    
HELIX   10  10 SER P  177  ILE P  186  1                                  10    
SHEET    1   A 4 GLN H   3  GLN H   6  0                                        
SHEET    2   A 4 VAL H  18  SER H  25 -1  O  LYS H  23   N  VAL H   5           
SHEET    3   A 4 THR H  78  LEU H  83 -1  O  MET H  81   N  VAL H  20           
SHEET    4   A 4 VAL H  68  ASP H  73 -1  N  ASP H  73   O  THR H  78           
SHEET    1   B 6 GLU H  10  LYS H  12  0                                        
SHEET    2   B 6 THR H 113  VAL H 117  1  O  THR H 116   N  LYS H  12           
SHEET    3   B 6 ALA H  92  VAL H 100 -1  N  TYR H  94   O  THR H 113           
SHEET    4   B 6 ILE H  34  GLN H  39 -1  N  ASN H  35   O  ALA H  97           
SHEET    5   B 6 LEU H  45  ILE H  51 -1  O  MET H  48   N  TRP H  36           
SHEET    6   B 6 THR H  58  TYR H  60 -1  O  ASP H  59   N  ARG H  50           
SHEET    1   C 4 GLU H  10  LYS H  12  0                                        
SHEET    2   C 4 THR H 113  VAL H 117  1  O  THR H 116   N  LYS H  12           
SHEET    3   C 4 ALA H  92  VAL H 100 -1  N  TYR H  94   O  THR H 113           
SHEET    4   C 4 TRP H 105  TRP H 109 -1  O  TRP H 105   N  VAL H 100           
SHEET    1   D 4 SER H 126  LEU H 130  0                                        
SHEET    2   D 4 THR H 141  TYR H 151 -1  O  GLY H 145   N  LEU H 130           
SHEET    3   D 4 TYR H 182  PRO H 191 -1  O  TYR H 182   N  TYR H 151           
SHEET    4   D 4 VAL H 169  THR H 171 -1  N  HIS H 170   O  VAL H 187           
SHEET    1   E 4 THR H 137  SER H 138  0                                        
SHEET    2   E 4 THR H 141  TYR H 151 -1  O  THR H 141   N  SER H 138           
SHEET    3   E 4 TYR H 182  PRO H 191 -1  O  TYR H 182   N  TYR H 151           
SHEET    4   E 4 VAL H 175  LEU H 176 -1  N  VAL H 175   O  SER H 183           
SHEET    1   F 3 THR H 157  TRP H 160  0                                        
SHEET    2   F 3 TYR H 200  HIS H 206 -1  O  ASN H 203   N  SER H 159           
SHEET    3   F 3 THR H 211  VAL H 217 -1  O  VAL H 213   N  VAL H 204           
SHEET    1   G 4 MET L   4  THR L   7  0                                        
SHEET    2   G 4 ALA L  19  SER L  25 -1  O  ARG L  24   N  THR L   5           
SHEET    3   G 4 ASP L  75  ILE L  80 -1  O  ILE L  80   N  ALA L  19           
SHEET    4   G 4 PHE L  67  GLY L  71 -1  N  SER L  68   O  LYS L  79           
SHEET    1   H 6 SER L  10  VAL L  13  0                                        
SHEET    2   H 6 THR L 107  ILE L 111  1  O  GLU L 110   N  VAL L  13           
SHEET    3   H 6 GLY L  89  GLN L  95 -1  N  GLY L  89   O  VAL L 109           
SHEET    4   H 6 LEU L  38  GLN L  43 -1  N  TYR L  41   O  TYR L  92           
SHEET    5   H 6 PRO L  49  TYR L  54 -1  O  LEU L  52   N  TRP L  40           
SHEET    6   H 6 ASN L  58  LEU L  59 -1  O  ASN L  58   N  TYR L  54           
SHEET    1   I 4 SER L  10  VAL L  13  0                                        
SHEET    2   I 4 THR L 107  ILE L 111  1  O  GLU L 110   N  VAL L  13           
SHEET    3   I 4 GLY L  89  GLN L  95 -1  N  GLY L  89   O  VAL L 109           
SHEET    4   I 4 THR L 102  PHE L 103 -1  O  THR L 102   N  GLN L  95           
SHEET    1   J 4 SER L 119  PHE L 123  0                                        
SHEET    2   J 4 THR L 134  PHE L 144 -1  O  LEU L 140   N  PHE L 121           
SHEET    3   J 4 TYR L 178  SER L 187 -1  O  SER L 182   N  CYS L 139           
SHEET    4   J 4 SER L 164  VAL L 168 -1  N  SER L 167   O  SER L 181           
SHEET    1   K 4 ALA L 158  LEU L 159  0                                        
SHEET    2   K 4 LYS L 150  VAL L 155 -1  N  VAL L 155   O  ALA L 158           
SHEET    3   K 4 VAL L 196  THR L 202 -1  O  GLU L 200   N  GLN L 152           
SHEET    4   K 4 VAL L 210  ASN L 215 -1  O  VAL L 210   N  VAL L 201           
SSBOND   1 CYS H   22    CYS H   96                          1555   1555  2.04  
SSBOND   2 CYS H  146    CYS H  202                          1555   1555  2.03  
SSBOND   3 CYS L   23    CYS L   93                          1555   1555  2.05  
SSBOND   4 CYS L  139    CYS L  199                          1555   1555  2.03  
SSBOND   5 CYS P  167    CYS P  183                          1555   1555  2.04  
CISPEP   1 PHE H  152    PRO H  153          0        -6.05                     
CISPEP   2 GLU H  154    PRO H  155          0         0.71                     
CISPEP   3 THR L    7    PRO L    8          0        -2.36                     
CISPEP   4 THR L    7    PRO L    8          0        -3.65                     
CISPEP   5 LEU L   99    PRO L  100          0        -2.29                     
CISPEP   6 TYR L  145    PRO L  146          0         4.45                     
SITE     1 AC1  4 ASN H  35  ARG H  50  ASN H  99  TYR L 101                    
CRYST1   84.050   85.900   72.870  90.00 116.34  90.00 C 1 2 1       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      0.011898  0.000000  0.005891        0.00000                         
SCALE2      0.000000  0.011641  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015313        0.00000