HEADER    CYTOKINE                                02-FEB-01   1I1R              
TITLE     CRYSTAL STRUCTURE OF A CYTOKINE/RECEPTOR COMPLEX                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INTERLEUKIN-6 RECEPTOR BETA CHAIN;                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: DOMAINS 1, 2, 3 OF THE GP130 EXTRACELLULAR DOMAIN (RESIDUES
COMPND   5 1-303);                                                              
COMPND   6 SYNONYM: GP130;                                                      
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 OTHER_DETAILS: EXPRESSED IN THE PRESENCE OF INHIBITOR OF N-LINKED    
COMPND   9 GLYCOSYLATION (TUNICAMYCIN);                                         
COMPND  10 MOL_ID: 2;                                                           
COMPND  11 MOLECULE: VIRAL IL-6;                                                
COMPND  12 CHAIN: B;                                                            
COMPND  13 SYNONYM: FUNCTIONAL INTERLEUKIN-6 HOMOLOG;                           
COMPND  14 ENGINEERED: YES;                                                     
COMPND  15 OTHER_DETAILS: NON-GLYCOSYLATED                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                            
SOURCE   6 EXPRESSION_SYSTEM_COMMON: FALL ARMYWORM;                             
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 7108;                                       
SOURCE   8 EXPRESSION_SYSTEM_CELL_LINE: SF9;                                    
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS;                          
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PACGP67A;                                 
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: HUMAN HERPESVIRUS 8;                            
SOURCE  13 ORGANISM_TAXID: 37296;                                               
SOURCE  14 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                            
SOURCE  15 EXPRESSION_SYSTEM_COMMON: FALL ARMYWORM;                             
SOURCE  16 EXPRESSION_SYSTEM_TAXID: 7108;                                       
SOURCE  17 EXPRESSION_SYSTEM_CELL_LINE: SF9;                                    
SOURCE  18 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS;                          
SOURCE  19 EXPRESSION_SYSTEM_PLASMID: PACGP67A                                  
KEYWDS    CYTOKINE-RECEPTOR COMPLEX, GP130, VIRAL IL-6, CYTOKINE                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.CHOW,X.HE,A.L.SNOW,S.ROSE-JOHN,K.C.GARCIA                           
REVDAT   4   30-OCT-24 1I1R    1       REMARK                                   
REVDAT   3   09-AUG-23 1I1R    1       REMARK                                   
REVDAT   2   24-FEB-09 1I1R    1       VERSN                                    
REVDAT   1   28-MAR-01 1I1R    0                                                
JRNL        AUTH   D.CHOW,X.HE,A.L.SNOW,S.ROSE-JOHN,K.C.GARCIA                  
JRNL        TITL   STRUCTURE OF AN EXTRACELLULAR GP130 CYTOKINE RECEPTOR        
JRNL        TITL 2 SIGNALING COMPLEX.                                           
JRNL        REF    SCIENCE                       V. 291  2150 2001              
JRNL        REFN                   ISSN 0036-8075                               
JRNL        PMID   11251120                                                     
JRNL        DOI    10.1126/SCIENCE.1058308                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
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) : 2.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
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)   (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 34376                          
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) : 0.213                           
REMARK   3   FREE R VALUE                     : 0.256                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 3425                            
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) : 2.40                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.49                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.50                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3210                       
REMARK   3   BIN FREE R VALUE                    : 0.3490                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 353                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.019                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3781                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 370                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 50.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 49.10                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.41000                                             
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
REMARK   3    B12 (A**2) : 13.53000                                             
REMARK   3    B13 (A**2) : -13.12000                                            
REMARK   3    B23 (A**2) : -5.74000                                             
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.31                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.34                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.37                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.39                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.600                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
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: WILSON B VALUE 50.2                       
REMARK   4                                                                      
REMARK   4 1I1R COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-FEB-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000012795.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-SEP-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 5.0.2                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1                                  
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 : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 34376                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY                : 3.100                              
REMARK 200  R MERGE                    (I) : 0.08100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 3.4000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.49                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.48700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: HUMAN INTERLEUKIN-6 1ALU, GP130 D2D3 DOMAINS 1BQU    
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: MPEG 2000, SODIUM CITRATE, PH 6.5,       
REMARK 280  VAPOR DIFFUSION, SITTING 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       51.50000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       61.65500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       51.50000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       61.65500            
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 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC                             
REMARK 300 ASYMMETRIC UNIT WHICH CONSISTS OF 2 CHAIN(S).                        
REMARK 300 SEE REMARK 350 FOR INFORMATION ON                                    
REMARK 300 GENERATING THE BIOLOGICAL MOLECULE(S).                               
REMARK 300 THE BIOLOGICAL ASSEMBLY IS A TETRAMER,                               
REMARK 300 OF WHICH HALF (ONE VIL-6, ONE GP130) IS IN                           
REMARK 300 THE ASYMMETRIC UNIT.  THE DYAD-AXIS OF THE                           
REMARK 300 TETRAMER IS THE C2 CRYSTALLOGRAPHIC AXIS.                            
REMARK 300 NOTE:  COORDINATES FOR THE ENTIRE TETRAMER                           
REMARK 300 CAN BE OBTAINED DIRECTLY FROM THE AUTHORS                            
REMARK 300 (KCGARCIA@STANFORD.EDU).                                             
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: TETRAMERIC                        
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 350   BIOMT1   2 -1.000000  0.000000  0.000000       74.19668            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       71.18338            
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     GLU A     1                                                      
REMARK 465     ARG A   303                                                      
REMARK 465     LEU B     1                                                      
REMARK 465     PRO B     2                                                      
REMARK 465     ASP B     3                                                      
REMARK 465     ALA B     4                                                      
REMARK 465     PRO B     5                                                      
REMARK 465     ASP B   173                                                      
REMARK 465     VAL B   174                                                      
REMARK 465     THR B   175                                                      
REMARK 465     PRO B   176                                                      
REMARK 465     ASP B   177                                                      
REMARK 465     VAL B   178                                                      
REMARK 465     HIS B   179                                                      
REMARK 465     ASP B   180                                                      
REMARK 465     LYS B   181                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   452     O    HOH A   468     2657     2.06            
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    PRO A   5   C   -  N   -  CA  ANGL. DEV. =  20.2 DEGREES          
REMARK 500    PRO A   5   C   -  N   -  CD  ANGL. DEV. = -18.4 DEGREES          
REMARK 500    GLY A 126   N   -  CA  -  C   ANGL. DEV. = -15.6 DEGREES          
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    LEU A   3       51.86     72.48                                   
REMARK 500    SER A  13       79.38   -154.73                                   
REMARK 500    LYS A  54      -33.04    -37.27                                   
REMARK 500    HIS A 145      134.07   -171.28                                   
REMARK 500    THR A 156       77.94   -111.72                                   
REMARK 500    GLU A 213       35.32    -88.15                                   
REMARK 500    ILE A 227       -5.59    -57.22                                   
REMARK 500    PHE A 270       44.99     36.12                                   
REMARK 500    LEU B  41       88.60   -164.91                                   
REMARK 500    HIS B  48       24.71   -147.59                                   
REMARK 500    ASN B  66      113.69    178.08                                   
REMARK 500    THR B  68      -76.26    -37.75                                   
REMARK 500    THR B 121     -164.68   -120.76                                   
REMARK 500    PRO B 128      172.05    -43.88                                   
REMARK 500    TYR B 143     -148.55     58.55                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1I1R A    1   303  UNP    P40189   IL6RB_HUMAN     23    325             
DBREF  1I1R B    1   181  UNP    Q98823   Q98823_HHV8     24    204             
SEQRES   1 A  303  GLU LEU LEU ASP PRO CYS GLY TYR ILE SER PRO GLU SER          
SEQRES   2 A  303  PRO VAL VAL GLN LEU HIS SER ASN PHE THR ALA VAL CYS          
SEQRES   3 A  303  VAL LEU LYS GLU LYS CYS MET ASP TYR PHE HIS VAL ASN          
SEQRES   4 A  303  ALA ASN TYR ILE VAL TRP LYS THR ASN HIS PHE THR ILE          
SEQRES   5 A  303  PRO LYS GLU GLN TYR THR ILE ILE ASN ARG THR ALA SER          
SEQRES   6 A  303  SER VAL THR PHE THR ASP ILE ALA SER LEU ASN ILE GLN          
SEQRES   7 A  303  LEU THR CYS ASN ILE LEU THR PHE GLY GLN LEU GLU GLN          
SEQRES   8 A  303  ASN VAL TYR GLY ILE THR ILE ILE SER GLY LEU PRO PRO          
SEQRES   9 A  303  GLU LYS PRO LYS ASN LEU SER CYS ILE VAL ASN GLU GLY          
SEQRES  10 A  303  LYS LYS MET ARG CYS GLU TRP ASP GLY GLY ARG GLU THR          
SEQRES  11 A  303  HIS LEU GLU THR ASN PHE THR LEU LYS SER GLU TRP ALA          
SEQRES  12 A  303  THR HIS LYS PHE ALA ASP CYS LYS ALA LYS ARG ASP THR          
SEQRES  13 A  303  PRO THR SER CYS THR VAL ASP TYR SER THR VAL TYR PHE          
SEQRES  14 A  303  VAL ASN ILE GLU VAL TRP VAL GLU ALA GLU ASN ALA LEU          
SEQRES  15 A  303  GLY LYS VAL THR SER ASP HIS ILE ASN PHE ASP PRO VAL          
SEQRES  16 A  303  TYR LYS VAL LYS PRO ASN PRO PRO HIS ASN LEU SER VAL          
SEQRES  17 A  303  ILE ASN SER GLU GLU LEU SER SER ILE LEU LYS LEU THR          
SEQRES  18 A  303  TRP THR ASN PRO SER ILE LYS SER VAL ILE ILE LEU LYS          
SEQRES  19 A  303  TYR ASN ILE GLN TYR ARG THR LYS ASP ALA SER THR TRP          
SEQRES  20 A  303  SER GLN ILE PRO PRO GLU ASP THR ALA SER THR ARG SER          
SEQRES  21 A  303  SER PHE THR VAL GLN ASP LEU LYS PRO PHE THR GLU TYR          
SEQRES  22 A  303  VAL PHE ARG ILE ARG CYS MET LYS GLU ASP GLY LYS GLY          
SEQRES  23 A  303  TYR TRP SER ASP TRP SER GLU GLU ALA SER GLY ILE THR          
SEQRES  24 A  303  TYR GLU ASP ARG                                              
SEQRES   1 B  181  LEU PRO ASP ALA PRO GLU PHE GLU LYS ASP LEU LEU ILE          
SEQRES   2 B  181  GLN ARG LEU ASN TRP MET LEU TRP VAL ILE ASP GLU CYS          
SEQRES   3 B  181  PHE ARG ASP LEU CYS TYR ARG THR GLY ILE CYS LYS GLY          
SEQRES   4 B  181  ILE LEU GLU PRO ALA ALA ILE PHE HIS LEU LYS LEU PRO          
SEQRES   5 B  181  ALA ILE ASN ASP THR ASP HIS CYS GLY LEU ILE GLY PHE          
SEQRES   6 B  181  ASN GLU THR SER CYS LEU LYS LYS LEU ALA ASP GLY PHE          
SEQRES   7 B  181  PHE GLU PHE GLU VAL LEU PHE LYS PHE LEU THR THR GLU          
SEQRES   8 B  181  PHE GLY LYS SER VAL ILE ASN VAL ASP VAL MET GLU LEU          
SEQRES   9 B  181  LEU THR LYS THR LEU GLY TRP ASP ILE GLN GLU GLU LEU          
SEQRES  10 B  181  ASN LYS LEU THR LYS THR HIS TYR SER PRO PRO LYS PHE          
SEQRES  11 B  181  ASP ARG GLY LEU LEU GLY ARG LEU GLN GLY LEU LYS TYR          
SEQRES  12 B  181  TRP VAL ARG HIS PHE ALA SER PHE TYR VAL LEU SER ALA          
SEQRES  13 B  181  MET GLU LYS PHE ALA GLY GLN ALA VAL ARG VAL LEU ASP          
SEQRES  14 B  181  SER ILE PRO ASP VAL THR PRO ASP VAL HIS ASP LYS              
FORMUL   3  HOH   *370(H2 O)                                                    
HELIX    1   1 LYS A   29  HIS A   37  1                                   9    
HELIX    2   2 ASN A   39  ASN A   41  5                                   3    
HELIX    3   3 PRO A   53  TYR A   57  5                                   5    
HELIX    4   4 ASP A  193  TYR A  196  5                                   4    
HELIX    5   5 PRO A  225  VAL A  230  5                                   6    
HELIX    6   6 PRO A  251  ALA A  256  5                                   6    
HELIX    7   7 GLU B    8  GLY B   35  1                                  28    
HELIX    8   8 ASN B   66  GLY B   93  1                                  28    
HELIX    9   9 ASN B   98  ASP B  100  5                                   3    
HELIX   10  10 VAL B  101  THR B  121  1                                  21    
HELIX   11  11 ASP B  131  GLN B  139  1                                   9    
HELIX   12  12 TRP B  144  SER B  170  1                                  27    
SHEET    1   A 4 GLY A   7  SER A  10  0                                        
SHEET    2   A 4 PHE A  22  LEU A  28 -1  N  VAL A  25   O  SER A  10           
SHEET    3   A 4 ALA A  64  PHE A  69 -1  O  SER A  65   N  CYS A  26           
SHEET    4   A 4 THR A  58  ASN A  61 -1  N  THR A  58   O  SER A  66           
SHEET    1   B 5 PHE A  50  THR A  51  0                                        
SHEET    2   B 5 ILE A  43  THR A  47 -1  O  THR A  47   N  PHE A  50           
SHEET    3   B 5 ASN A  76  THR A  85 -1  N  THR A  80   O  LYS A  46           
SHEET    4   B 5 LEU A  89  GLY A 101 -1  N  LEU A  89   O  THR A  85           
SHEET    5   B 5 VAL A  15  GLN A  17  1  N  VAL A  16   O  ILE A  99           
SHEET    1   C 4 VAL A 198  LYS A 199  0                                        
SHEET    2   C 4 LYS A 108  ASN A 115  1  O  VAL A 114   N  LYS A 199           
SHEET    3   C 4 ARG A 121  ASP A 125 -1  O  ARG A 121   N  ILE A 113           
SHEET    4   C 4 SER A 159  THR A 161 -1  O  CYS A 160   N  CYS A 122           
SHEET    1   D 8 HIS A 145  LYS A 146  0                                        
SHEET    2   D 8 ASN A 135  TRP A 142 -1  N  TRP A 142   O  HIS A 145           
SHEET    3   D 8 CYS A 150  LYS A 151 -1  O  CYS A 150   N  LEU A 138           
SHEET    4   D 8 ASN A 135  TRP A 142 -1  N  LEU A 138   O  CYS A 150           
SHEET    5   D 8 ILE A 172  ASN A 180 -1  N  GLU A 173   O  GLU A 141           
SHEET    6   D 8 GLY A 183  THR A 186 -1  N  GLY A 183   O  ASN A 180           
SHEET    7   D 8 ILE A 172  ASN A 180 -1  N  ALA A 178   O  VAL A 185           
SHEET    8   D 8 ILE A 190  PHE A 192 -1  N  ILE A 190   O  VAL A 174           
SHEET    1   E 3 HIS A 204  ILE A 209  0                                        
SHEET    2   E 3 LEU A 218  THR A 223 -1  O  LYS A 219   N  ILE A 209           
SHEET    3   E 3 SER A 261  VAL A 264 -1  O  PHE A 262   N  LEU A 220           
SHEET    1   F 4 SER A 248  GLN A 249  0                                        
SHEET    2   F 4 LEU A 233  THR A 241 -1  O  TYR A 239   N  SER A 248           
SHEET    3   F 4 GLU A 272  LYS A 281 -1  N  VAL A 274   O  ARG A 240           
SHEET    4   F 4 ALA A 295  ILE A 298 -1  O  ALA A 295   N  PHE A 275           
SSBOND   1 CYS A    6    CYS A   32                          1555   1555  2.03  
SSBOND   2 CYS A   26    CYS A   81                          1555   1555  2.03  
SSBOND   3 CYS A  112    CYS A  122                          1555   1555  2.04  
SSBOND   4 CYS A  150    CYS A  160                          1555   1555  2.04  
SSBOND   5 CYS B   31    CYS B   37                          1555   1555  2.03  
SSBOND   6 CYS B   60    CYS B   70                          1555   1555  2.02  
CISPEP   1 SER A   10    PRO A   11          0        -0.24                     
CRYST1  103.000  123.310   76.790  90.00 112.03  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      0.009709  0.000000  0.003928        0.00000                         
SCALE2      0.000000  0.008110  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014048        0.00000