PDB Short entry for 2ARV
HEADER    HORMONE/GROWTH FACTOR                   22-AUG-05   2ARV              
TITLE     STRUCTURE OF HUMAN ACTIVIN A                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INHIBIN BETA A CHAIN;                                      
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: ACTIVIN BETA-A CHAIN, ERYTHROID DIFFERENTIATION PROTEIN,    
COMPND   5 EDF;                                                                 
COMPND   6 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: INHBA;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PBAT4                                     
KEYWDS    HOMODIMER,CYSTINE KNOT, DISULFIDE LINKED, HORMONE-GROWTH FACTOR       
KEYWDS   2 COMPLEX                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.E.HARRINGTON,S.A.MORRIS-TRIGGS,B.T.RUOTOLO,C.V.ROBINSON,S.OHNUMA,   
AUTHOR   2 M.HYVONEN                                                            
REVDAT   4   13-JUL-11 2ARV    1       VERSN                                    
REVDAT   3   24-FEB-09 2ARV    1       VERSN                                    
REVDAT   2   28-MAR-06 2ARV    1       JRNL                                     
REVDAT   1   07-MAR-06 2ARV    0                                                
JRNL        AUTH   A.E.HARRINGTON,S.A.MORRIS-TRIGGS,B.T.RUOTOLO,C.V.ROBINSON,   
JRNL        AUTH 2 S.OHNUMA,M.HYVONEN                                           
JRNL        TITL   STRUCTURAL BASIS FOR THE INHIBITION OF ACTIVIN SIGNALLING BY 
JRNL        TITL 2 FOLLISTATIN                                                  
JRNL        REF    EMBO J.                       V.  25  1035 2006              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   16482217                                                     
JRNL        DOI    10.1038/SJ.EMBOJ.7601000                                     
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0003                                      
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.20                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 93.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 22157                          
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) : 0.218                           
REMARK   3   R VALUE            (WORKING SET) : 0.216                           
REMARK   3   FREE R VALUE                     : 0.259                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1151                            
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) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1350                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 78.56                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2550                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 64                           
REMARK   3   BIN FREE R VALUE                    : 0.3420                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1744                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 55                                      
REMARK   3   SOLVENT ATOMS            : 54                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 50.62                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.31000                                             
REMARK   3    B22 (A**2) : -0.07000                                             
REMARK   3    B33 (A**2) : 1.39000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
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): 0.160         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.156         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.114         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.949         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.951                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.931                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1858 ; 0.016 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2503 ; 1.381 ; 1.956       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   221 ; 6.703 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    82 ;33.931 ;24.390       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   308 ;18.983 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     6 ;25.176 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   251 ; 0.135 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1380 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   704 ; 0.271 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1241 ; 0.326 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    67 ; 0.229 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
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):    61 ; 0.262 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     6 ; 0.103 ; 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):  1134 ; 6.511 ; 2.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1780 ; 7.935 ; 3.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   833 ; 7.966 ; 2.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   722 ;10.048 ; 3.000       
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 : 1                                 
REMARK   3                                                                      
REMARK   3  NCS GROUP NUMBER               : 1                                  
REMARK   3     CHAIN NAMES                    : B A                             
REMARK   3     NUMBER OF COMPONENTS NCS GROUP : 1                               
REMARK   3       COMPONENT C  SSSEQI  TO  C   SSSEQI   CODE                     
REMARK   3           1     B      1       B     116      4                      
REMARK   3           1     A      1       A     116      4                      
REMARK   3                   GROUP CHAIN        COUNT   RMS     WEIGHT          
REMARK   3   MEDIUM POSITIONAL  1    B    (A):    829 ;  0.88 ;  0.50           
REMARK   3   MEDIUM THERMAL     1    B (A**2):    829 ;  8.37 ;  2.00           
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : 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 2ARV COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-SEP-05.                  
REMARK 100 THE RCSB ID CODE IS RCSB034239.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 23-JUL-05                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.8                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : BM14                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.978847                           
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 24229                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.200                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.9                               
REMARK 200  DATA REDUNDANCY                : 5.000                              
REMARK 200  R MERGE                    (I) : 0.06500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
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: PDB ENTRY 1S4Y                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 64.40                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, PEG300, NA-HEPES,     
REMARK 280  PH 7.8, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                          
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,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-Z+1/2                                     
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        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  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       31.78600            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       48.12350            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       59.01900            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       31.78600            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       48.12350            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       59.01900            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       31.78600            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       48.12350            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       59.01900            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       31.78600            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       48.12350            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       59.01900            
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 300 REMARK: THE BIOLOGICAL UNIT IS A HOMODIMER AS FOUND IN THE           
REMARK 300 ASYMMETRIC UNIT                                                      
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4380 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 13070 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -65.0 KCAL/MOL                        
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 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     HIS B    47                                                      
REMARK 465     ILE B    48                                                      
REMARK 465     ALA B    49                                                      
REMARK 465     GLY B    50                                                      
REMARK 465     THR B    51                                                      
REMARK 465     SER B    52                                                      
REMARK 465     GLY B    53                                                      
REMARK 465     SER B    54                                                      
REMARK 465     SER B    55                                                      
REMARK 465     LEU B    56                                                      
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   OH   TYR B    66     O    HOH B   129              2.15            
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    CYS A  12   CA  -  CB  -  SG  ANGL. DEV. =   7.3 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    CYS A  11      119.87    -37.86                                   
REMARK 500    ASN A  38      169.17     68.71                                   
REMARK 500    CYS A  44       71.53   -118.15                                   
REMARK 500    GLN A  98        1.29    108.97                                   
REMARK 500    ASN B  38      171.12     61.09                                   
REMARK 500    ASP B  96       -5.04    -54.93                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CHIRAL CENTERS                                             
REMARK 500                                                                      
REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL                     
REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY                      
REMARK 500 FOR AMINO ACIDS AND C1'--O4'--N1(N9)--C2' FOR                        
REMARK 500 NUCLEIC ACIDS OR EQUIVALENT ANGLE                                    
REMARK 500 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,A1,6X,F5.1,6X,A1,10X,A1,3X,A16)       
REMARK 500                                                                      
REMARK 500  M RES CSSEQI    IMPROPER   EXPECTED   FOUND DETAILS                 
REMARK 500    VAL A  62        21.7      L          L   OUTSIDE RANGE           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 117                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 118                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 119                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 120                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1PG B 117                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 121                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 122                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 123                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2ARP   RELATED DB: PDB                                   
REMARK 900 COMPLEX OF ACTIVIN A WITH FOLLISTATIN                                
DBREF  2ARV A    1   116  UNP    P08476   INHBA_HUMAN    311    426             
DBREF  2ARV B    1   116  UNP    P08476   INHBA_HUMAN    311    426             
SEQRES   1 A  116  GLY LEU GLU CYS ASP GLY LYS VAL ASN ILE CYS CYS LYS          
SEQRES   2 A  116  LYS GLN PHE PHE VAL SER PHE LYS ASP ILE GLY TRP ASN          
SEQRES   3 A  116  ASP TRP ILE ILE ALA PRO SER GLY TYR HIS ALA ASN TYR          
SEQRES   4 A  116  CYS GLU GLY GLU CYS PRO SER HIS ILE ALA GLY THR SER          
SEQRES   5 A  116  GLY SER SER LEU SER PHE HIS SER THR VAL ILE ASN HIS          
SEQRES   6 A  116  TYR ARG MET ARG GLY HIS SER PRO PHE ALA ASN LEU LYS          
SEQRES   7 A  116  SER CYS CYS VAL PRO THR LYS LEU ARG PRO MET SER MET          
SEQRES   8 A  116  LEU TYR TYR ASP ASP GLY GLN ASN ILE ILE LYS LYS ASP          
SEQRES   9 A  116  ILE GLN ASN MET ILE VAL GLU GLU CYS GLY CYS SER              
SEQRES   1 B  116  GLY LEU GLU CYS ASP GLY LYS VAL ASN ILE CYS CYS LYS          
SEQRES   2 B  116  LYS GLN PHE PHE VAL SER PHE LYS ASP ILE GLY TRP ASN          
SEQRES   3 B  116  ASP TRP ILE ILE ALA PRO SER GLY TYR HIS ALA ASN TYR          
SEQRES   4 B  116  CYS GLU GLY GLU CYS PRO SER HIS ILE ALA GLY THR SER          
SEQRES   5 B  116  GLY SER SER LEU SER PHE HIS SER THR VAL ILE ASN HIS          
SEQRES   6 B  116  TYR ARG MET ARG GLY HIS SER PRO PHE ALA ASN LEU LYS          
SEQRES   7 B  116  SER CYS CYS VAL PRO THR LYS LEU ARG PRO MET SER MET          
SEQRES   8 B  116  LEU TYR TYR ASP ASP GLY GLN ASN ILE ILE LYS LYS ASP          
SEQRES   9 B  116  ILE GLN ASN MET ILE VAL GLU GLU CYS GLY CYS SER              
HET    SO4  A 117       5                                                       
HET    SO4  A 118       5                                                       
HET    SO4  A 119       5                                                       
HET    SO4  A 120       5                                                       
HET    1PG  B 117      17                                                       
HET    GOL  A 121       6                                                       
HET    GOL  A 122       6                                                       
HET    GOL  A 123       6                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     1PG 2-(2-{2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-           
HETNAM   2 1PG  ETHANOL                                                         
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   3  SO4    4(O4 S 2-)                                                   
FORMUL   7  1PG    C11 H24 O6                                                   
FORMUL   8  GOL    3(C3 H8 O3)                                                  
FORMUL  11  HOH   *54(H2 O)                                                     
HELIX    1   1 PRO A   45  ALA A   49  5                                   5    
HELIX    2   2 SER A   57  ARG A   69  1                                  13    
HELIX    3   3 SER B   57  ARG B   69  1                                  13    
SHEET    1   A 2 CYS A  12  LYS A  14  0                                        
SHEET    2   A 2 TYR A  39  GLU A  41 -1  O  TYR A  39   N  LYS A  14           
SHEET    1   B 2 PHE A  17  SER A  19  0                                        
SHEET    2   B 2 GLY A  34  HIS A  36 -1  O  TYR A  35   N  VAL A  18           
SHEET    1   C 3 ILE A  29  ALA A  31  0                                        
SHEET    2   C 3 CYS A  81  ASP A  95 -1  O  LEU A  92   N  ALA A  31           
SHEET    3   C 3 ASN A  99  CYS A 115 -1  O  ILE A 101   N  TYR A  93           
SHEET    1   D 2 THR A  51  SER A  52  0                                        
SHEET    2   D 2 SER A  55  LEU A  56 -1  O  SER A  55   N  SER A  52           
SHEET    1   E 3 LEU B   2  GLU B   3  0                                        
SHEET    2   E 3 CYS B  12  LYS B  14  1  O  LYS B  13   N  LEU B   2           
SHEET    3   E 3 TYR B  39  GLU B  41 -1  O  TYR B  39   N  LYS B  14           
SHEET    1   F 2 PHE B  17  SER B  19  0                                        
SHEET    2   F 2 GLY B  34  HIS B  36 -1  O  TYR B  35   N  VAL B  18           
SHEET    1   G 3 ILE B  29  ALA B  31  0                                        
SHEET    2   G 3 CYS B  81  TYR B  94 -1  O  LEU B  92   N  ALA B  31           
SHEET    3   G 3 ILE B 100  CYS B 115 -1  O  GLU B 112   N  THR B  84           
SSBOND   1 CYS A    4    CYS A   12                          1555   1555  2.13  
SSBOND   2 CYS A   11    CYS A   81                          1555   1555  2.06  
SSBOND   3 CYS A   40    CYS A  113                          1555   1555  2.01  
SSBOND   4 CYS A   44    CYS A  115                          1555   1555  2.09  
SSBOND   5 CYS A   80    CYS B   80                          1555   1555  2.06  
SSBOND   6 CYS B    4    CYS B   12                          1555   1555  2.05  
SSBOND   7 CYS B   11    CYS B   81                          1555   1555  2.06  
SSBOND   8 CYS B   40    CYS B  113                          1555   1555  2.00  
SSBOND   9 CYS B   44    CYS B  115                          1555   1555  2.04  
CISPEP   1 ALA A   31    PRO A   32          0        -3.37                     
CISPEP   2 SER A   72    PRO A   73          0         7.23                     
CISPEP   3 ALA B   31    PRO B   32          0         1.68                     
SITE     1 AC1  6 LYS A  14  GLN A  15  HIS A  65  ARG A  69                    
SITE     2 AC1  6 TRP B  25  HOH B 124                                          
SITE     1 AC2  6 GLY A   1  LYS A  21  SER A  33  GLY A  53                    
SITE     2 AC2  6 SER A  54  HOH A 159                                          
SITE     1 AC3  7 LYS A   7  ALA A  31  PRO A  32  SER A  90                    
SITE     2 AC3  7 MET A  91  SO4 A 120  HOH A 136                               
SITE     1 AC4  5 ASN A   9  SER A  90  LYS A 102  SO4 A 119                    
SITE     2 AC4  5 HOH A 127                                                     
SITE     1 AC5  4 PHE A  16  PHE A  17  THR A  61  HOH B 133                    
SITE     1 AC6  9 GLY A   1  LEU A   2  ILE A  10  CYS A  11                    
SITE     2 AC6  9 ILE A  48  THR A  51  GLY A  53  CYS A 113                    
SITE     3 AC6  9 HOH A 125                                                     
SITE     1 AC7  2 PRO A  45  SER A  46                                          
SITE     1 AC8  6 GLY A  50  THR A  51  SER A  57  SER A  60                    
SITE     2 AC8  6 THR A  84  CYS A 115                                          
CRYST1   63.572   96.247  118.038  90.00  90.00  90.00 I 2 2 2      16          
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      0.015730  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010390  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008472        0.00000