HEADER    VIRAL PROTEIN                           01-OCT-07   2RFU              
TITLE     CRYSTAL STRUCTURE OF INFLUENZA B VIRUS HEMAGGLUTININ IN COMPLEX WITH  
TITLE    2 LSTC RECEPTOR ANALOG                                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INFLUENZA B HEMAGGLUTININ (HA);                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: INFLUENZA B HEMAGGLUTININ (HA);                            
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: INFLUENZA B VIRUS (STRAIN B/HONG KONG/8/73);    
SOURCE   3 ORGANISM_TAXID: 11531;                                               
SOURCE   4 STRAIN: B/HONGKONG/8/73;                                             
SOURCE   5 GENE: HEMAGGLUTININ;                                                 
SOURCE   6 EXPRESSION_SYSTEM: INFLUENZA B VIRUS;                                
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 11520;                                      
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 ORGANISM_SCIENTIFIC: INFLUENZA B VIRUS (STRAIN B/HONG KONG/8/73);    
SOURCE  10 ORGANISM_TAXID: 11531;                                               
SOURCE  11 STRAIN: B/HONGKONG/8/73;                                             
SOURCE  12 GENE: HEMAGGLUTININ;                                                 
SOURCE  13 EXPRESSION_SYSTEM: INFLUENZA B VIRUS;                                
SOURCE  14 EXPRESSION_SYSTEM_TAXID: 11520                                       
KEYWDS    INFLUENZA, RECEPTOR SPECIFICITY, HUMAN RECEPTOR ANALOG, ENVELOPE      
KEYWDS   2 PROTEIN, FUSION PROTEIN, HEMAGGLUTININ, MEMBRANE, TRANSMEMBRANE,     
KEYWDS   3 VIRION, GLYCOPROTEIN, LIPOPROTEIN, PALMITATE, VIRAL PROTEIN          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Q.WANG,X.TIAN,X.CHEN,J.MA                                             
REVDAT   6   30-OCT-24 2RFU    1       REMARK                                   
REVDAT   5   03-APR-24 2RFU    1       HETSYN                                   
REVDAT   4   29-JUL-20 2RFU    1       COMPND REMARK HETNAM LINK                
REVDAT   4 2                   1       SITE   ATOM                              
REVDAT   3   13-JUL-11 2RFU    1       VERSN                                    
REVDAT   2   24-FEB-09 2RFU    1       VERSN                                    
REVDAT   1   05-FEB-08 2RFU    0                                                
JRNL        AUTH   Q.WANG,X.TIAN,X.CHEN,J.MA                                    
JRNL        TITL   STRUCTURAL BASIS FOR RECEPTOR SPECIFICITY OF INFLUENZA B     
JRNL        TITL 2 VIRUS HEMAGGLUTININ.                                         
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 104 16874 2007              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   17942670                                                     
JRNL        DOI    10.1073/PNAS.0708363104                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 92.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 15990                          
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 + TEST SET) : 0.296                           
REMARK   3   R VALUE            (WORKING SET) : 0.295                           
REMARK   3   FREE R VALUE                     : 0.311                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1753                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.80                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.87                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1116                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 90.49                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.4430                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 131                          
REMARK   3   BIN FREE R VALUE                    : 0.4530                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3864                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 199                                     
REMARK   3   SOLVENT ATOMS            : 2                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 52.17                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 6.59000                                              
REMARK   3    B22 (A**2) : 6.59000                                              
REMARK   3    B33 (A**2) : -9.89000                                             
REMARK   3    B12 (A**2) : 3.30000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.467         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.391         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 20.930        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.887                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.875                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4159 ; 0.008 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  2792 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5656 ; 1.519 ; 2.018       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  6807 ; 2.658 ; 3.004       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   509 ; 7.784 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   156 ;40.401 ;25.000       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   675 ;20.975 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    16 ;21.418 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   670 ; 0.072 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4442 ; 0.003 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   722 ; 0.002 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1142 ; 0.245 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  3063 ; 0.242 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  2010 ; 0.189 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  2254 ; 0.105 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   154 ; 0.192 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):     1 ; 0.011 ; 0.200       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    39 ; 0.235 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    77 ; 0.236 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     7 ; 0.179 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  3244 ; 1.364 ; 3.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1044 ; 0.124 ; 3.000       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4078 ; 1.631 ; 5.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1852 ; 1.974 ; 6.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1578 ; 3.041 ; 8.000       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 2RFU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-DEC-07.                  
REMARK 100 THE DEPOSITION ID IS D_1000044807.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 22-NOV-05                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 14-BM-C                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9                                
REMARK 200  MONOCHROMATOR                  : BENT GE(111) MONOCHROMATOR         
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 19705                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.6                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.05300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.80                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 89.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.29700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: UNLIGANDED INFLUENZA B VIRUS HEMAGGLUTININ           
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 63.64                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.38                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM PIPES, 2.5 M AMMONIUM SULFATE,    
REMARK 280  PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3 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                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-Z                                              
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
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        0.00000            
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        0.00000            
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        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: HEXAMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 44650 ANGSTROM**2                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D, E, F, G                   
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 -0.500000 -0.866025  0.000000       98.36900            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000       49.18450            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000       85.19005            
REMARK 350   BIOMT3   3  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     GLU A   343                                                      
REMARK 465     ARG A   344                                                      
REMARK 465     LEU B   170                                                      
REMARK 465     ASN B   171                                                      
REMARK 465     ILE B   172                                                      
REMARK 465     THR B   173                                                      
REMARK 465     ALA B   174                                                      
REMARK 465     ALA B   175                                                      
REMARK 465     SER B   176                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O4   NAG F     1     O5   NAG F     2              2.07            
REMARK 500   OE1  GLN A   268     N2   NAG D     1              2.13            
REMARK 500   OG   SER A   240     O9   SIA G     3              2.15            
REMARK 500   O    GLY A    51     NE2  HIS A    85              2.19            
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 276   NE  -  CZ  -  NH1 ANGL. DEV. =   3.0 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    LYS A  45      -81.33    -54.43                                   
REMARK 500    LEU A  53      -36.62    -32.67                                   
REMARK 500    LEU A  58     -158.08     44.93                                   
REMARK 500    ASN A  59       86.30    -52.61                                   
REMARK 500    PRO A  77     -133.81    -96.47                                   
REMARK 500    CYS A  94     -163.47     60.81                                   
REMARK 500    ASP A 100        8.06    -56.81                                   
REMARK 500    ARG A 112      -37.72    -37.82                                   
REMARK 500    SER A 120      136.82    151.05                                   
REMARK 500    ALA A 121       36.12    -92.00                                   
REMARK 500    ARG A 122      177.56    160.27                                   
REMARK 500    THR A 125      112.02     67.79                                   
REMARK 500    ALA A 127      -36.32    -39.84                                   
REMARK 500    PRO A 131      151.83    -49.60                                   
REMARK 500    VAL A 137       87.64    -67.54                                   
REMARK 500    SER A 142       -3.24     80.43                                   
REMARK 500    PRO A 144     -178.10    -40.09                                   
REMARK 500    ASN A 148       67.66     76.10                                   
REMARK 500    PHE A 153      101.16     10.85                                   
REMARK 500    ASN A 163       76.51     73.89                                   
REMARK 500    PRO A 169      127.68    -35.23                                   
REMARK 500    ILE A 177      -28.73     80.24                                   
REMARK 500    LYS A 180     -150.18     71.20                                   
REMARK 500    ASP A 204      138.64    176.47                                   
REMARK 500    ASP A 234     -153.94   -147.89                                   
REMARK 500    GLU A 235      -79.31   -135.36                                   
REMARK 500    LEU A 237        5.14     81.04                                   
REMARK 500    PRO A 238       56.82    -67.31                                   
REMARK 500    GLN A 261      -97.10   -136.21                                   
REMARK 500    VAL A 264       98.53    -42.86                                   
REMARK 500    GLN A 268      -97.94   -140.70                                   
REMARK 500    LYS A 281       98.24    -62.60                                   
REMARK 500    LEU A 286      109.39    -57.85                                   
REMARK 500    LYS A 296     -114.88    -80.15                                   
REMARK 500    TYR A 297      -30.42     -8.09                                   
REMARK 500    SER A 303      -70.95    -93.84                                   
REMARK 500    LEU B  38       49.89    -84.83                                   
REMARK 500    LYS B  39      -52.78   -149.16                                   
REMARK 500    LEU B  63       87.58     83.21                                   
REMARK 500    GLN B  64     -156.19   -119.08                                   
REMARK 500    HIS B  74       53.46   -116.07                                   
REMARK 500    GLU B 111      -70.64    -25.91                                   
REMARK 500    SER B 163       94.15    -50.50                                   
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 LEU A  284     PRO A  285                  132.95                    
REMARK 500 ALA A  338     LYS A  339                  145.99                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     NAG D    1                                                       
REMARK 610     NAG G    1                                                       
REMARK 610     NAG A  348                                                       
REMARK 630                                                                      
REMARK 630 MOLECULE TYPE: OLIGOSACCHARIDE GLYCAN COMPONENT                      
REMARK 630 MOLECULE NAME: 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE              
REMARK 630 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 630  SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                           
REMARK 630                                                                      
REMARK 630   M RES C SSSEQI                                                     
REMARK 630     NAG A   347                                                      
REMARK 630     NAG A   348                                                      
REMARK 630     NAG B   170                                                      
REMARK 630 SOURCE: NULL                                                         
REMARK 630 TAXONOMY: NULL                                                       
REMARK 630 SUBCOMP: NULL                                                        
REMARK 630 DETAILS: OLIGOSACCHARIDE                                             
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2RFT   RELATED DB: PDB                                   
REMARK 900 2RFT IS THE SAME PROTEIN IN COMPLEX WITH LSTA RECEPTOR ANALOG        
DBREF  2RFU A    1   344  UNP    Q84097   Q84097_9INFB    16    359             
DBREF  2RFU B    1   176  UNP    Q84097   Q84097_9INFB   360    535             
SEQRES   1 A  344  ASP ARG ILE CYS THR GLY ILE THR SER SER ASN SER PRO          
SEQRES   2 A  344  HIS VAL VAL LYS THR ALA THR GLN GLY GLU VAL ASN VAL          
SEQRES   3 A  344  THR GLY VAL ILE PRO LEU THR THR THR PRO THR LYS SER          
SEQRES   4 A  344  HIS PHE ALA ASN LEU LYS GLY THR GLN THR ARG GLY LYS          
SEQRES   5 A  344  LEU CYS PRO ASN CYS LEU ASN CYS THR ASP LEU ASP VAL          
SEQRES   6 A  344  ALA LEU GLY ARG PRO LYS CYS MET GLY THR ILE PRO SER          
SEQRES   7 A  344  ALA LYS ALA SER ILE LEU HIS GLU VAL LYS PRO VAL THR          
SEQRES   8 A  344  SER GLY CYS PHE PRO ILE MET HIS ASP ARG THR LYS ILE          
SEQRES   9 A  344  ARG GLN LEU PRO ASN LEU LEU ARG GLY TYR GLU ASN ILE          
SEQRES  10 A  344  ARG LEU SER ALA ARG ASN VAL THR ASN ALA GLU THR ALA          
SEQRES  11 A  344  PRO GLY GLY PRO TYR ILE VAL GLY THR SER GLY SER CYS          
SEQRES  12 A  344  PRO ASN VAL THR ASN GLY ASN GLY PHE PHE ALA THR MET          
SEQRES  13 A  344  ALA TRP ALA VAL PRO LYS ASN LYS THR ALA THR ASN PRO          
SEQRES  14 A  344  LEU THR VAL GLU VAL PRO TYR ILE CYS THR LYS GLY GLU          
SEQRES  15 A  344  ASP GLN ILE THR VAL TRP GLY PHE HIS SER ASP ASP GLU          
SEQRES  16 A  344  THR GLN MET VAL LYS LEU TYR GLY ASP SER LYS PRO GLN          
SEQRES  17 A  344  LYS PHE THR SER SER ALA ASN GLY VAL THR THR HIS TYR          
SEQRES  18 A  344  VAL SER GLN ILE GLY GLY PHE PRO ASN GLN ALA GLU ASP          
SEQRES  19 A  344  GLU GLY LEU PRO GLN SER GLY ARG ILE VAL VAL ASP TYR          
SEQRES  20 A  344  MET VAL GLN LYS PRO GLY LYS THR GLY THR ILE ALA TYR          
SEQRES  21 A  344  GLN ARG GLY VAL LEU LEU PRO GLN LYS VAL TRP CYS ALA          
SEQRES  22 A  344  SER GLY ARG SER LYS VAL ILE LYS GLY SER LEU PRO LEU          
SEQRES  23 A  344  ILE GLY GLU ALA ASP CYS LEU HIS GLU LYS TYR GLY GLY          
SEQRES  24 A  344  LEU ASN LYS SER LYS PRO TYR TYR THR GLY GLU HIS ALA          
SEQRES  25 A  344  LYS ALA ILE GLY ASN CYS PRO ILE TRP VAL LYS THR PRO          
SEQRES  26 A  344  LEU LYS LEU ALA ASN GLY THR LYS TYR ARG PRO PRO ALA          
SEQRES  27 A  344  LYS LEU LEU LYS GLU ARG                                      
SEQRES   1 B  176  GLY PHE PHE GLY ALA ILE ALA GLY PHE LEU GLU GLY GLY          
SEQRES   2 B  176  TRP GLU GLY MET ILE ALA GLY TRP HIS GLY TYR THR SER          
SEQRES   3 B  176  HIS GLY ALA HIS GLY VAL ALA VAL ALA ALA ASP LEU LYS          
SEQRES   4 B  176  SER THR GLN GLU ALA ILE ASN LYS ILE THR LYS ASN LEU          
SEQRES   5 B  176  ASN SER LEU SER GLU LEU GLU VAL LYS ASN LEU GLN ARG          
SEQRES   6 B  176  LEU SER GLY ALA MET ASP GLU LEU HIS ASN GLU ILE LEU          
SEQRES   7 B  176  GLU LEU ASP GLU LYS VAL ASP ASP LEU ARG ALA ASP THR          
SEQRES   8 B  176  ILE SER SER GLN ILE GLU LEU ALA VAL LEU LEU SER ASN          
SEQRES   9 B  176  GLU GLY ILE ILE ASN SER GLU ASP GLU HIS LEU LEU ALA          
SEQRES  10 B  176  LEU GLU ARG LYS LEU LYS LYS MET LEU GLY PRO SER ALA          
SEQRES  11 B  176  VAL ASP ILE GLY ASN GLY CYS PHE GLU THR LYS HIS LYS          
SEQRES  12 B  176  CYS ASN GLN THR CYS LEU ASP ARG ILE ALA ALA GLY THR          
SEQRES  13 B  176  PHE ASN ALA GLY GLU PHE SER LEU PRO THR PHE ASP SER          
SEQRES  14 B  176  LEU ASN ILE THR ALA ALA SER                                  
MODRES 2RFU ASN A   25  ASN  GLYCOSYLATION SITE                                 
MODRES 2RFU ASN A  145  ASN  GLYCOSYLATION SITE                                 
MODRES 2RFU ASN A  301  ASN  GLYCOSYLATION SITE                                 
MODRES 2RFU ASN A  330  ASN  GLYCOSYLATION SITE                                 
MODRES 2RFU ASN B  145  ASN  GLYCOSYLATION SITE                                 
HET    NAG  C   1      14                                                       
HET    NAG  C   2      14                                                       
HET    NAG  D   1      14                                                       
HET    NAG  D   2      14                                                       
HET    NAG  E   1      14                                                       
HET    NAG  E   2      14                                                       
HET    NAG  F   1      14                                                       
HET    NAG  F   2      14                                                       
HET    NAG  G   1      14                                                       
HET    GAL  G   2      11                                                       
HET    SIA  G   3      20                                                       
HET    NAG  A 347      14                                                       
HET    NAG  A 348      14                                                       
HET    NAG  B 170      14                                                       
HETNAM     NAG 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE                         
HETNAM     GAL BETA-D-GALACTOPYRANOSE                                           
HETNAM     SIA N-ACETYL-ALPHA-NEURAMINIC ACID                                   
HETSYN     NAG N-ACETYL-BETA-D-GLUCOSAMINE; 2-ACETAMIDO-2-DEOXY-BETA-           
HETSYN   2 NAG  D-GLUCOSE; 2-ACETAMIDO-2-DEOXY-D-GLUCOSE; 2-ACETAMIDO-          
HETSYN   3 NAG  2-DEOXY-GLUCOSE; N-ACETYL-D-GLUCOSAMINE                         
HETSYN     GAL BETA-D-GALACTOSE; D-GALACTOSE; GALACTOSE                         
HETSYN     SIA N-ACETYLNEURAMINIC ACID; SIALIC ACID; ALPHA-SIALIC               
HETSYN   2 SIA  ACID; O-SIALIC ACID                                             
FORMUL   3  NAG    12(C8 H15 N O6)                                              
FORMUL   7  GAL    C6 H12 O6                                                    
FORMUL   7  SIA    C11 H19 N O9                                                 
FORMUL  11  HOH   *2(H2 O)                                                      
HELIX    1   1 THR A   61  GLY A   68  1                                   8    
HELIX    2   2 MET A   98  ARG A  105  5                                   8    
HELIX    3   3 GLN A  106  GLY A  113  1                                   8    
HELIX    4   4 ASP A  194  TYR A  202  1                                   9    
HELIX    5   5 GLY B    1  ALA B    7  1                                   7    
HELIX    6   6 LYS B   39  LEU B   58  1                                  20    
HELIX    7   7 HIS B   74  GLY B  127  1                                  54    
HELIX    8   8 ASN B  145  GLY B  155  1                                  11    
SHEET    1   A 5 GLY B  31  ALA B  36  0                                        
SHEET    2   A 5 HIS B  22  GLY B  28 -1  N  SER B  26   O  ALA B  33           
SHEET    3   A 5 ARG A   2  ILE A   7 -1  N  GLY A   6   O  GLY B  23           
SHEET    4   A 5 CYS B 137  GLU B 139 -1  O  PHE B 138   N  ILE A   3           
SHEET    5   A 5 VAL B 131  ASP B 132 -1  N  VAL B 131   O  GLU B 139           
SHEET    1   B 2 HIS A  14  LYS A  17  0                                        
SHEET    2   B 2 GLU A  23  VAL A  26 -1  O  VAL A  24   N  VAL A  16           
SHEET    1   C 2 VAL A  29  PRO A  31  0                                        
SHEET    2   C 2 LYS A 327  ALA A 329 -1  O  LEU A 328   N  ILE A  30           
SHEET    1   D 2 ASN A  43  LEU A  44  0                                        
SHEET    2   D 2 GLU A 289  ALA A 290  1  O  ALA A 290   N  ASN A  43           
SHEET    1   E 3 THR A  49  ARG A  50  0                                        
SHEET    2   E 3 ALA A  81  ILE A  83  1  O  ILE A  83   N  ARG A  50           
SHEET    3   E 3 LYS A 278  ILE A 280  1  O  LYS A 278   N  SER A  82           
SHEET    1   F 6 TYR A 114  ARG A 118  0                                        
SHEET    2   F 6 TRP A 271  ARG A 276 -1  O  SER A 274   N  ASN A 116           
SHEET    3   F 6 ASP A 183  SER A 192 -1  N  ASP A 183   O  ALA A 273           
SHEET    4   F 6 VAL A 264  PRO A 267 -1  O  LEU A 265   N  GLY A 189           
SHEET    5   F 6 MET A 156  PRO A 161 -1  N  ALA A 157   O  LEU A 266           
SHEET    6   F 6 TYR A 135  GLY A 138 -1  N  ILE A 136   O  VAL A 160           
SHEET    1   G 4 TYR A 114  ARG A 118  0                                        
SHEET    2   G 4 TRP A 271  ARG A 276 -1  O  SER A 274   N  ASN A 116           
SHEET    3   G 4 ASP A 183  SER A 192 -1  N  ASP A 183   O  ALA A 273           
SHEET    4   G 4 ARG A 242  GLN A 250 -1  O  ASP A 246   N  TRP A 188           
SHEET    1   H 4 LEU A 170  VAL A 172  0                                        
SHEET    2   H 4 GLY A 256  TYR A 260 -1  O  TYR A 260   N  LEU A 170           
SHEET    3   H 4 LYS A 209  ALA A 214 -1  N  THR A 211   O  ALA A 259           
SHEET    4   H 4 VAL A 217  VAL A 222 -1  O  TYR A 221   N  PHE A 210           
SHEET    1   I 3 GLY A 298  LEU A 300  0                                        
SHEET    2   I 3 CYS A 292  HIS A 294 -1  N  CYS A 292   O  LEU A 300           
SHEET    3   I 3 ALA A 314  GLY A 316 -1  O  ILE A 315   N  LEU A 293           
SHEET    1   J 2 TYR A 306  TYR A 307  0                                        
SHEET    2   J 2 ILE A 320  TRP A 321  1  O  ILE A 320   N  TYR A 307           
SSBOND   1 CYS A    4    CYS B  137                          1555   1555  2.04  
SSBOND   2 CYS A   54    CYS A   57                          1555   1555  2.01  
SSBOND   3 CYS A   60    CYS A   72                          1555   1555  2.02  
SSBOND   4 CYS A   94    CYS A  143                          1555   1555  2.05  
SSBOND   5 CYS A  178    CYS A  272                          1555   1555  2.04  
SSBOND   6 CYS A  292    CYS A  318                          1555   1555  2.04  
SSBOND   7 CYS B  144    CYS B  148                          1555   1555  2.05  
LINK         ND2 ASN A  25                 C1  NAG C   1     1555   1555  1.45  
LINK         ND2 ASN A 145                 C1  NAG A 347     1555   1555  1.45  
LINK         ND2 ASN A 301                 C1  NAG E   1     1555   1555  1.45  
LINK         ND2 ASN A 330                 C1  NAG F   1     1555   1555  1.45  
LINK         ND2 ASN B 145                 C1  NAG B 170     1555   1555  1.46  
LINK         O4  NAG C   1                 C1  NAG C   2     1555   1555  1.44  
LINK         O4  NAG D   1                 C1  NAG D   2     1555   1555  1.45  
LINK         O4  NAG E   1                 C1  NAG E   2     1555   1555  1.45  
LINK         O4  NAG F   1                 C1  NAG F   2     1555   1555  1.44  
LINK         O4  NAG G   1                 C1  GAL G   2     1555   1555  1.45  
LINK         O6  GAL G   2                 C2  SIA G   3     1555   1555  1.44  
CRYST1   98.369   98.369  135.896  90.00  90.00 120.00 P 3 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      0.010166  0.005869  0.000000        0.00000                         
SCALE2      0.000000  0.011738  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007359        0.00000