HEADER    IMMUNE SYSTEM/INHIBITOR                 21-SEP-96   1CFA              
TITLE     SOLUTION STRUCTURE OF A SEMI-SYNTHETIC C5A RECEPTOR ANTAGONIST AT PH  
TITLE    2 5.2, 303K, NMR, 20 STRUCTURES                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: COMPLEMENT 5A SEMI-SYNTHETIC ANTAGONIST;                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: RESIDUES 1 - 71;                                           
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES;                                                       
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: SYNTHETIC N-TERMINAL TAIL;                                 
COMPND   9 CHAIN: B;                                                            
COMPND  10 FRAGMENT: RESIDUES 72 - 75;                                          
COMPND  11 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PB-6;                                     
SOURCE   8 MOL_ID: 2                                                            
KEYWDS    COMPLEMENT FACTOR, COMPLEMENT ALTERNATE PATHWAY, GLYCOPROTEIN,        
KEYWDS   2 AGGREGATION INHIBITOR, GP ANTAGONIST, COMPLEMENT FACTOR-PEPTIDE      
KEYWDS   3 COMPLEX, IMMUNE SYSTEM-INHIBITOR COMPLEX                             
EXPDTA    SOLUTION NMR                                                          
NUMMDL    20                                                                    
AUTHOR    X.ZHANG,W.BOYAR,N.GALAKATOS,N.C.GONNELLA                              
REVDAT   5   23-OCT-24 1CFA    1       REMARK                                   
REVDAT   4   05-JUN-24 1CFA    1       SEQADV LINK                              
REVDAT   3   13-JUL-11 1CFA    1       VERSN                                    
REVDAT   2   24-FEB-09 1CFA    1       VERSN                                    
REVDAT   1   17-SEP-97 1CFA    0                                                
JRNL        AUTH   X.ZHANG,W.BOYAR,N.GALAKATOS,N.C.GONNELLA                     
JRNL        TITL   SOLUTION STRUCTURE OF A UNIQUE C5A SEMI-SYNTHETIC            
JRNL        TITL 2 ANTAGONIST: IMPLICATIONS IN RECEPTOR BINDING.                
JRNL        REF    PROTEIN SCI.                  V.   6    65 1997              
JRNL        REFN                   ISSN 0961-8368                               
JRNL        PMID   9007977                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1CFA COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000172287.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 303                                
REMARK 210  PH                             : 5.2                                
REMARK 210  IONIC STRENGTH                 : NULL                               
REMARK 210  PRESSURE                       : NULL                               
REMARK 210  SAMPLE CONTENTS                : NULL                               
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : NULL                               
REMARK 210  SPECTROMETER FIELD STRENGTH    : NULL                               
REMARK 210  SPECTROMETER MODEL             : NULL                               
REMARK 210  SPECTROMETER MANUFACTURER      : NULL                               
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : NULL                               
REMARK 210   METHOD USED                   : NULL                               
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : NULL                               
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 20                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : NULL                               
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL                
REMARK 210                                                                      
REMARK 210 REMARK: NULL                                                         
REMARK 215                                                                      
REMARK 215 NMR STUDY                                                            
REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION           
REMARK 215 NMR DATA.  PROTEIN DATA BANK CONVENTIONS REQUIRE THAT                
REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON              
REMARK 215 THESE RECORDS ARE MEANINGLESS.                                       
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: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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  1 GLN A   3     -158.98   -155.24                                   
REMARK 500  1 LYS A   5      -94.80   -131.15                                   
REMARK 500  1 TYR A  13       95.85    -51.90                                   
REMARK 500  1 LYS A  14      105.52      2.87                                   
REMARK 500  1 SER A  16      -76.11    -43.14                                   
REMARK 500  1 VAL A  17      -51.18   -136.48                                   
REMARK 500  1 LYS A  19      -85.72    -68.32                                   
REMARK 500  1 ASN A  29      156.26    -39.92                                   
REMARK 500  1 CYS A  34      -32.13    -37.62                                   
REMARK 500  1 GLU A  35      -74.19    -91.52                                   
REMARK 500  1 GLN A  36      -28.52    -38.38                                   
REMARK 500  1 ALA A  39      -70.15   -136.10                                   
REMARK 500  1 PRO A  45      -70.26    -50.90                                   
REMARK 500  1 ARG A  46      -52.08    179.49                                   
REMARK 500  1 LEU A  61      -71.68    -79.67                                   
REMARK 500  1 ARG A  62      -46.60    -24.82                                   
REMARK 500  1 ILE A  65      105.44    -43.02                                   
REMARK 500  1 SER A  66      -41.49   -166.47                                   
REMARK 500  1 LYS A  68     -177.23    -53.07                                   
REMARK 500  1 MET A  70     -139.49    -75.03                                   
REMARK 500  2 LYS A   5      -53.25   -150.56                                   
REMARK 500  2 GLU A   7      -88.66    -51.51                                   
REMARK 500  2 LYS A  14      115.40      2.28                                   
REMARK 500  2 SER A  16      -75.00    -42.25                                   
REMARK 500  2 VAL A  17      -49.01   -141.19                                   
REMARK 500  2 LYS A  19      -84.42    -67.72                                   
REMARK 500  2 VAL A  28     -174.66    -62.12                                   
REMARK 500  2 ASN A  29      166.34    -41.77                                   
REMARK 500  2 ASP A  31       19.15   -156.23                                   
REMARK 500  2 GLU A  32      -86.49    -47.40                                   
REMARK 500  2 CYS A  34      -33.85    -35.15                                   
REMARK 500  2 GLU A  35      -72.08    -89.93                                   
REMARK 500  2 GLN A  36      -27.70    -39.84                                   
REMARK 500  2 ALA A  39      -66.15   -130.82                                   
REMARK 500  2 PRO A  45      -70.08    -52.21                                   
REMARK 500  2 ARG A  46      -44.78    179.56                                   
REMARK 500  2 ALA A  58      -79.77    -53.51                                   
REMARK 500  2 ARG A  62      -39.29    -31.06                                   
REMARK 500  2 ILE A  65       91.64    -54.82                                   
REMARK 500  2 SER A  66      -39.17   -150.03                                   
REMARK 500  2 LYS A  68     -165.82    -64.12                                   
REMARK 500  2 ASP A  69     -154.51   -129.65                                   
REMARK 500  2 MET A  70      -75.04   -147.76                                   
REMARK 500  3 LEU A   2     -168.74   -125.53                                   
REMARK 500  3 GLN A   3     -146.92    -78.27                                   
REMARK 500  3 LYS A   4      158.82    -43.01                                   
REMARK 500  3 LYS A   5      -60.51   -140.41                                   
REMARK 500  3 GLU A   7      -84.47    -54.91                                   
REMARK 500  3 LYS A  14      101.17      2.52                                   
REMARK 500  3 VAL A  17      -46.62   -165.83                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     444 RAMACHANDRAN OUTLIERS.                        
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 CHAIN B OF SYNTHETIC N-TERMINAL   
REMARK 800  TAIL                                                                
DBREF  1CFA A    1    71  UNP    P01031   CO5_HUMAN      679    747             
DBREF  1CFA B   72    75  PDB    1CFA     1CFA            72     75             
SEQADV 1CFA SER A   27  UNP  P01031    CYS   704 CLONING ARTIFACT               
SEQRES   1 A   71  MET LEU GLN LYS LYS ILE GLU GLU ILE ALA ALA LYS TYR          
SEQRES   2 A   71  LYS HIS SER VAL VAL LYS LYS CYS CYS TYR ASP GLY ALA          
SEQRES   3 A   71  SER VAL ASN ASN ASP GLU THR CYS GLU GLN ARG ALA ALA          
SEQRES   4 A   71  ARG ILE SER LEU GLY PRO ARG CYS ILE LYS ALA PHE THR          
SEQRES   5 A   71  GLU CYS CYS VAL VAL ALA SER GLN LEU ARG ALA ASN ILE          
SEQRES   6 A   71  SER HIS LYS ASP MET CYS                                      
SEQRES   1 B    4  CYS LEU GLY DAR                                              
HET    DAR  B  75      25                                                       
HETNAM     DAR D-ARGININE                                                       
FORMUL   2  DAR    C6 H15 N4 O2 1+                                              
HELIX    1   1 LYS A    5  ALA A   11  1                                   7    
HELIX    2   2 VAL A   17  ALA A   26  1                                  10    
HELIX    3   3 CYS A   34  ALA A   38  1                                   5    
HELIX    4   4 CYS A   47  ASN A   64  1                                  18    
SSBOND   1 CYS A   21    CYS A   47                          1555   1555  2.01  
SSBOND   2 CYS A   22    CYS A   54                          1555   1555  2.03  
SSBOND   3 CYS A   34    CYS A   55                          1555   1555  2.02  
SSBOND   4 CYS A   71    CYS B   72                          1555   1555  2.02  
LINK         C   GLY B  74                 N   DAR B  75     1555   1555  1.31  
SITE     1 AC1  6 TYR A  13  LYS A  14  VAL A  18  ALA A  50                    
SITE     2 AC1  6 GLU A  53  CYS A  71                                          
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
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      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000                         
MODEL        1