PDB Short entry for 4XDX
HEADER    CYTOKINE                                20-DEC-14   4XDX              
TITLE     THE CRYSTAL STRUCTURE OF SOLUBLE HUMAN INTERLEUKIN 8 EXPRESSED IN     
TITLE    2 PICHIA PASTORIS                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INTERLEUKIN-8;                                             
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: IL-8,C-X-C MOTIF CHEMOKINE 8,CHEMOKINE (C-X-C MOTIF) LIGAND 
COMPND   5 8,EMOCTAKIN,GRANULOCYTE CHEMOTACTIC PROTEIN 1,GCP-1,MONOCYTE-DERIVED 
COMPND   6 NEUTROPHIL CHEMOTACTIC FACTOR,MDNCF,MONOCYTE-DERIVED NEUTROPHIL-     
COMPND   7 ACTIVATING PEPTIDE,MONAP,NEUTROPHIL-ACTIVATING PROTEIN 1,NAP-1,      
COMPND   8 PROTEIN 3-10C,T-CELL CHEMOTACTIC FACTOR;                             
COMPND   9 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: CXCL8, IL8;                                                    
SOURCE   6 EXPRESSION_SYSTEM: KOMAGATAELLA PASTORIS;                            
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 4922                                        
KEYWDS    CYTOKINE, ALPHA BETA PROTEIN, IL8 FOLD, CHEMOKINE                     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.A.OSTROV,Y.A.POMPEU,J.J.JAKONCIC                                    
REVDAT   3   27-SEP-23 4XDX    1       REMARK                                   
REVDAT   2   22-NOV-17 4XDX    1       REMARK                                   
REVDAT   1   23-DEC-15 4XDX    0                                                
JRNL        AUTH   D.A.OSTROV,Y.A.POMPEU,J.J.JAKONCIC                           
JRNL        TITL   THE CRYSTAL STRUCTURE OF SOLUBLE HUMAN INTERLEUKIN 8         
JRNL        TITL 2 EXPRESSED IN PICHIA PASTORIS                                 
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    0.95 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.9_1692)                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 0.95                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 7.94                           
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.340                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 52700                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.122                           
REMARK   3   R VALUE            (WORKING SET) : 0.121                           
REMARK   3   FREE R VALUE                     : 0.136                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2635                            
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  7.9391 -  2.5097    0.93     2643   135  0.1600 0.1642        
REMARK   3     2  2.5097 -  2.0025    1.00     2716   145  0.1295 0.1414        
REMARK   3     3  2.0025 -  1.7525    1.00     2714   144  0.1161 0.1221        
REMARK   3     4  1.7525 -  1.5937    1.00     2674   138  0.1039 0.1173        
REMARK   3     5  1.5937 -  1.4802    1.00     2671   140  0.0966 0.1124        
REMARK   3     6  1.4802 -  1.3935    1.00     2657   141  0.0963 0.1271        
REMARK   3     7  1.3935 -  1.3240    1.00     2676   138  0.0965 0.1155        
REMARK   3     8  1.3240 -  1.2666    1.00     2642   138  0.0903 0.1117        
REMARK   3     9  1.2666 -  1.2180    1.00     2631   137  0.0892 0.1145        
REMARK   3    10  1.2180 -  1.1761    1.00     2617   141  0.0897 0.1026        
REMARK   3    11  1.1761 -  1.1395    1.00     2650   137  0.0885 0.1122        
REMARK   3    12  1.1395 -  1.1070    1.00     2645   145  0.0930 0.1240        
REMARK   3    13  1.1070 -  1.0779    1.00     2621   135  0.0914 0.1204        
REMARK   3    14  1.0779 -  1.0517    1.00     2593   139  0.1102 0.1250        
REMARK   3    15  1.0517 -  1.0278    1.00     2611   137  0.1157 0.1480        
REMARK   3    16  1.0278 -  1.0060    1.00     2650   137  0.1263 0.1523        
REMARK   3    17  1.0060 -  0.9859    1.00     2652   140  0.1466 0.1628        
REMARK   3    18  0.9859 -  0.9673    0.99     2570   136  0.1739 0.2113        
REMARK   3    19  0.9673 -  0.9501    0.94     2432   132  0.2139 0.2262        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.070            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 10.720           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 8.52                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.18                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.025            708                                  
REMARK   3   ANGLE     :  2.132            971                                  
REMARK   3   CHIRALITY :  0.106            107                                  
REMARK   3   PLANARITY :  0.014            126                                  
REMARK   3   DIHEDRAL  : 13.319            317                                  
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 4XDX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-DEC-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000203137.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-AUG-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X6A                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.806                              
REMARK 200  MONOCHROMATOR                  : SI(111) CHANNEL-CUT                
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 270                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000, DENZO                    
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000, SCALEPACK                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 52929                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 0.950                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 8.000                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY                : 8.700                              
REMARK 200  R MERGE                    (I) : 0.05000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 37.8100                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.95                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 0.97                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 8.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.74300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.300                              
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: 3IL8                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.04                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.51                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.17 M AMMONIUM ACETATE, 0.085 M         
REMARK 280  SODIUM CITRATE TRIBASIC DIHYDRATE PH 5.6, 20% W/V POLYETHYLENE      
REMARK 280  GLYCOL 4,000, 15% V/V GLYCEROL, VAPOR DIFFUSION, HANGING DROP,      
REMARK 280  TEMPERATURE 291K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
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       29.75633            
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       59.51267            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       59.51267            
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       29.75633            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 0 ANGSTROM**2                             
REMARK 350 SURFACE AREA OF THE COMPLEX: 5310 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 0.0 KCAL/MOL                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     LYS A   3    CB   CG   CD   CE   NZ                              
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   HZ1  LYS A    23     O    HOH A   101              1.56            
REMARK 500   O    HOH A   103     O    HOH A   164              2.07            
REMARK 500   O    HOH A   217     O    HOH A   238              2.08            
REMARK 500   O    HOH A   156     O    HOH A   168              2.13            
REMARK 500   O    HOH A   182     O    HOH A   223              2.15            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A   4   CB    GLU A   4   CG      0.166                       
REMARK 500    GLU A   4   CG    GLU A   4   CD      0.114                       
REMARK 500    ARG A  26   NE    ARG A  26   CZ      0.118                       
REMARK 500    SER A  44   CB    SER A  44   OG     -0.083                       
REMARK 500    GLU A  70   CD    GLU A  70   OE1    -0.073                       
REMARK 500    SER A  72   N     SER A  72   CA      1.242                       
REMARK 500    SER A  72   CA    SER A  72   C       1.531                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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 PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG A  26   NE  -  CZ  -  NH1 ANGL. DEV. =  -5.2 DEGREES          
REMARK 500    ASN A  71   CB  -  CA  -  C   ANGL. DEV. =  13.9 DEGREES          
REMARK 500    SER A  72   C   -  N   -  CA  ANGL. DEV. = -25.9 DEGREES          
REMARK 500    SER A  72   CB  -  CA  -  C   ANGL. DEV. = -37.2 DEGREES          
REMARK 500    SER A  72   N   -  CA  -  CB  ANGL. DEV. = -30.2 DEGREES          
REMARK 500    SER A  72   N   -  CA  -  C   ANGL. DEV. = -56.2 DEGREES          
REMARK 500    SER A  72   CA  -  C   -  O   ANGL. DEV. =  21.3 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ASN A   71     SER A   72                  147.46                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 223        DISTANCE =  5.99 ANGSTROMS                       
REMARK 525    HOH A 227        DISTANCE =  5.85 ANGSTROMS                       
DBREF  4XDX A    3    72  UNP    P10145   IL8_HUMAN       30     99             
SEQRES   1 A   70  LYS GLU LEU ARG CYS GLN CYS ILE LYS THR TYR SER LYS          
SEQRES   2 A   70  PRO PHE HIS PRO LYS PHE ILE LYS GLU LEU ARG VAL ILE          
SEQRES   3 A   70  GLU SER GLY PRO HIS CYS ALA ASN THR GLU ILE ILE VAL          
SEQRES   4 A   70  LYS LEU SER ASP GLY ARG GLU LEU CYS LEU ASP PRO LYS          
SEQRES   5 A   70  GLU ASN TRP VAL GLN ARG VAL VAL GLU LYS PHE LEU LYS          
SEQRES   6 A   70  ARG ALA GLU ASN SER                                          
FORMUL   2  HOH   *141(H2 O)                                                    
HELIX    1 AA1 HIS A   18  LYS A   20  5                                   3    
HELIX    2 AA2 GLU A   55  ASN A   71  1                                  17    
SHEET    1 AA1 3 ILE A  22  ILE A  28  0                                        
SHEET    2 AA1 3 GLU A  38  LEU A  43 -1  O  LYS A  42   N  LYS A  23           
SHEET    3 AA1 3 GLU A  48  LEU A  51 -1  O  LEU A  49   N  VAL A  41           
SSBOND   1 CYS A    7    CYS A   34                          1555   1555  2.07  
SSBOND   2 CYS A    9    CYS A   50                          1555   1555  2.04  
CRYST1   40.093   40.093   89.269  90.00  90.00 120.00 P 31 2 1      6          
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      0.024942  0.014400  0.000000        0.00000                         
SCALE2      0.000000  0.028801  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011202        0.00000