PDB Short entry for 2ARP
HEADER    HORMONE/GROWTH FACTOR                   21-AUG-05   2ARP              
TITLE     ACTIVIN A IN COMPLEX WITH FS12 FRAGMENT OF FOLLISTATIN                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INHIBIN BETA A CHAIN;                                      
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: ACTIVIN BETA-A CHAIN, ERYTHROID DIFFERENTIATION PROTEIN,    
COMPND   5 EDF;                                                                 
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: FOLLISTATIN;                                               
COMPND   9 CHAIN: F;                                                            
COMPND  10 FRAGMENT: FS1-FS2;                                                   
COMPND  11 SYNONYM: FS, ACTIVIN-BINDING PROTEIN;                                
COMPND  12 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;                                    
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS;                              
SOURCE  13 ORGANISM_COMMON: NORWAY RAT;                                         
SOURCE  14 ORGANISM_TAXID: 10116;                                               
SOURCE  15 GENE: FST;                                                           
SOURCE  16 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE  17 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE  18 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE  19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  20 EXPRESSION_SYSTEM_PLASMID: PHAT4                                     
KEYWDS    CYSTINE KNOT, DISULFIDE RICH, EGF DOMAIN, KAZAL DOMAIN, PROTEIN       
KEYWDS   2 COMPLEX, HORMONE-GROWTH FACTOR 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   5   23-AUG-23 2ARP    1       REMARK LINK                              
REVDAT   4   13-JUL-11 2ARP    1       VERSN                                    
REVDAT   3   24-FEB-09 2ARP    1       VERSN                                    
REVDAT   2   28-MAR-06 2ARP    1       JRNL                                     
REVDAT   1   07-MAR-06 2ARP    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,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) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 25.80                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 22029                          
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) : 0.202                           
REMARK   3   R VALUE            (WORKING SET) : 0.202                           
REMARK   3   FREE R VALUE                     : 0.254                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1142                            
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) : 1590                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.97                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2380                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 103                          
REMARK   3   BIN FREE R VALUE                    : 0.3050                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1945                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 44                                      
REMARK   3   SOLVENT ATOMS            : 171                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 32.33                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 40.67                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.94000                                              
REMARK   3    B22 (A**2) : -0.60000                                             
REMARK   3    B33 (A**2) : -0.34000                                             
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): 0.166         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.163         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.108         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.140         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.948                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.922                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2046 ; 0.017 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2747 ; 1.710 ; 1.978       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   253 ; 5.714 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    85 ;34.794 ;24.588       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   360 ;16.538 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    11 ;11.500 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   290 ; 0.128 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1501 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   843 ; 0.277 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1365 ; 0.317 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   141 ; 0.202 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     1 ; 0.250 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    65 ; 0.387 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     8 ; 0.201 ; 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):  1313 ; 2.205 ; 2.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2034 ; 3.031 ; 3.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   850 ; 2.408 ; 2.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   711 ; 3.321 ; 3.000       
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 : 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 2ARP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-SEP-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000034233.                                   
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                             : 8.0                                
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) : 0.97926                            
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   : 23201                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 25.800                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.5                               
REMARK 200  DATA REDUNDANCY                : 4.900                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 23.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.42700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.670                              
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 ENTRIES: 1S4U, 1LR9                              
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 56.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.90                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG-MME 2000, NICKEL CHLORIDE, TRIS      
REMARK 280  -HCL, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K       
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 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+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       39.64850            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       47.25100            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       39.64850            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       47.25100            
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 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 SECOND PART OF THE BIOLOGICAL ASSEMBLY IS GENERATED      
REMARK 300 BY THE TWO FOLD AXIS:  -X,-Y,Z.                                      
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 10680 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 28910 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -87.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, F                                  
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        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  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     LYS A     7                                                      
REMARK 465     VAL A     8                                                      
REMARK 465     SER A    46                                                      
REMARK 465     HIS A    47                                                      
REMARK 465     ILE A    48                                                      
REMARK 465     ALA A    49                                                      
REMARK 465     GLY A    50                                                      
REMARK 465     THR A    51                                                      
REMARK 465     SER A    52                                                      
REMARK 465     GLY A    53                                                      
REMARK 465     SER A    54                                                      
REMARK 465     GLY F    61                                                      
REMARK 465     SER F    62                                                      
REMARK 465     MET F    63                                                      
REMARK 465     GLU F    64                                                      
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   OG   SER A    79     O    HOH A   541              1.86            
REMARK 500   CG   MET A    68     O    HOH A   577              1.98            
REMARK 500   O    HOH A   512     O    HOH A   566              2.14            
REMARK 500   O    HOH F   384     O    HOH F   389              2.16            
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    LEU A  92   CA  -  CB  -  CG  ANGL. DEV. =  16.4 DEGREES          
REMARK 500    ASP A  95   CB  -  CG  -  OD2 ANGL. DEV. =   7.0 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    LEU A   2      -76.43    -68.11                                   
REMARK 500    ASP A   5     -100.72   -128.67                                   
REMARK 500    ILE A  10     -148.88   -104.75                                   
REMARK 500    ASN A  38      169.63     72.66                                   
REMARK 500    LYS A  78       97.08    -69.02                                   
REMARK 500    CYS A  81       97.24    -68.93                                   
REMARK 500    ASN F  83      -13.88     74.12                                   
REMARK 500    ALA F  90       64.13   -161.37                                   
REMARK 500    THR F 138      160.87     67.05                                   
REMARK 500    ASP F 153     -159.79    -91.97                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NI A 503  NI                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 LYS A  13   NZ                                                     
REMARK 620 2 HOH A 565   O   102.8                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NI A 502  NI                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  36   ND1                                                    
REMARK 620 2 HOH A 540   O   100.1                                              
REMARK 620 3 GLU F 126   OE2 160.1  99.3                                        
REMARK 620 4 GLU F 126   OE1 103.3 153.4  56.7                                  
REMARK 620 5 HOH F 357   O   101.7  91.5  82.1  95.9                            
REMARK 620 6 HOH F 375   O    93.7  78.2  86.1  87.8 162.8                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NI A 501  NI                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  65   NE2                                                    
REMARK 620 2 HIS A  71   NE2  96.0                                              
REMARK 620 3 HOH A 512   O   105.3  93.4                                        
REMARK 620 4 HOH A 514   O   101.0  95.4 151.2                                  
REMARK 620 5 HOH A 523   O   100.5 163.4  82.9  80.8                            
REMARK 620 6 HOH A 566   O   162.5  91.7  58.5  93.9  72.5                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 501                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 502                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 503                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1PG A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL F 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL F 302                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 303                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL F 304                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2ARV   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF HUMAN ACTIVIN A                                         
DBREF  2ARP A    1   116  UNP    P08476   INHBA_HUMAN    311    426             
DBREF  2ARP F   64   212  UNP    P21674   FST_RAT         93    241             
SEQADV 2ARP GLY F   61  UNP  P21674              CLONING ARTIFACT               
SEQADV 2ARP SER F   62  UNP  P21674              CLONING ARTIFACT               
SEQADV 2ARP MET F   63  UNP  P21674              CLONING ARTIFACT               
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 F  152  GLY SER MET GLU THR CYS GLU ASN VAL ASP CYS GLY PRO          
SEQRES   2 F  152  GLY LYS LYS CYS ARG MET ASN LYS LYS ASN LYS PRO ARG          
SEQRES   3 F  152  CYS VAL CYS ALA PRO ASP CYS SER ASN ILE THR TRP LYS          
SEQRES   4 F  152  GLY PRO VAL CYS GLY LEU ASP GLY LYS THR TYR ARG ASN          
SEQRES   5 F  152  GLU CYS ALA LEU LEU LYS ALA ARG CYS LYS GLU GLN PRO          
SEQRES   6 F  152  GLU LEU GLU VAL GLN TYR GLN GLY LYS CYS LYS LYS THR          
SEQRES   7 F  152  CYS ARG ASP VAL PHE CYS PRO GLY SER SER THR CYS VAL          
SEQRES   8 F  152  VAL ASP GLN THR ASN ASN ALA TYR CYS VAL THR CYS ASN          
SEQRES   9 F  152  ARG ILE CYS PRO GLU PRO SER SER SER GLU GLN SER LEU          
SEQRES  10 F  152  CYS GLY ASN ASP GLY VAL THR TYR SER SER ALA CYS HIS          
SEQRES  11 F  152  LEU ARG LYS ALA THR CYS LEU LEU GLY ARG SER ILE GLY          
SEQRES  12 F  152  LEU ALA TYR GLU GLY LYS CYS ILE LYS                          
HET     NI  A 501       1                                                       
HET     NI  A 502       1                                                       
HET     NI  A 503       1                                                       
HET    1PG  A 401      17                                                       
HET    GOL  A 303       6                                                       
HET    GOL  F 301       6                                                       
HET    GOL  F 302       6                                                       
HET    GOL  F 304       6                                                       
HETNAM      NI NICKEL (II) 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   NI    3(NI 2+)                                                     
FORMUL   6  1PG    C11 H24 O6                                                   
FORMUL   7  GOL    4(C3 H8 O3)                                                  
FORMUL  11  HOH   *171(H2 O)                                                    
HELIX    1   1 PHE A   20  GLY A   24  1                                   5    
HELIX    2   2 SER A   57  TYR A   66  1                                  10    
HELIX    3   3 ASN F  112  GLU F  123  1                                  12    
HELIX    4   4 SER F  187  GLY F  199  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  TYR A  94 -1  O  LEU A  92   N  ALA A  31           
SHEET    3   C 3 ILE A 100  CYS A 115 -1  O  GLY A 114   N  VAL A  82           
SHEET    1   D 2 LYS F  75  MET F  79  0                                        
SHEET    2   D 2 PRO F  85  CYS F  89 -1  O  VAL F  88   N  LYS F  76           
SHEET    1   E 3 THR F 109  TYR F 110  0                                        
SHEET    2   E 3 VAL F 102  GLY F 104 -1  N  VAL F 102   O  TYR F 110           
SHEET    3   E 3 VAL F 129  GLN F 132 -1  O  GLN F 130   N  CYS F 103           
SHEET    1   F 2 THR F 149  VAL F 152  0                                        
SHEET    2   F 2 ALA F 158  VAL F 161 -1  O  VAL F 161   N  THR F 149           
SHEET    1   G 3 THR F 184  TYR F 185  0                                        
SHEET    2   G 3 LEU F 177  GLY F 179 -1  N  LEU F 177   O  TYR F 185           
SHEET    3   G 3 LEU F 204  GLU F 207 -1  O  ALA F 205   N  CYS F 178           
SSBOND   1 CYS A    4    CYS A   12                          1555   1555  2.05  
SSBOND   2 CYS A   11    CYS A   81                          1555   1555  2.00  
SSBOND   3 CYS A   40    CYS A  113                          1555   1555  2.02  
SSBOND   4 CYS A   44    CYS A  115                          1555   1555  2.02  
SSBOND   5 CYS A   80    CYS A   80                          1555   2555  2.05  
SSBOND   6 CYS F   66    CYS F   77                          1555   1555  2.05  
SSBOND   7 CYS F   71    CYS F   87                          1555   1555  2.04  
SSBOND   8 CYS F   89    CYS F  121                          1555   1555  2.03  
SSBOND   9 CYS F   93    CYS F  114                          1555   1555  2.06  
SSBOND  10 CYS F  103    CYS F  135                          1555   1555  2.03  
SSBOND  11 CYS F  139    CYS F  150                          1555   1555  2.06  
SSBOND  12 CYS F  144    CYS F  160                          1555   1555  2.04  
SSBOND  13 CYS F  163    CYS F  196                          1555   1555  2.05  
SSBOND  14 CYS F  167    CYS F  189                          1555   1555  2.09  
SSBOND  15 CYS F  178    CYS F  210                          1555   1555  2.03  
LINK         NZ  LYS A  13                NI    NI A 503     1555   1555  2.69  
LINK         ND1 HIS A  36                NI    NI A 502     1555   1555  2.03  
LINK         NE2 HIS A  65                NI    NI A 501     1555   1555  2.04  
LINK         NE2 HIS A  71                NI    NI A 501     1555   1555  2.07  
LINK        NI    NI A 501                 O   HOH A 512     1555   1555  2.47  
LINK        NI    NI A 501                 O   HOH A 514     1555   1555  2.15  
LINK        NI    NI A 501                 O   HOH A 523     1555   1555  2.13  
LINK        NI    NI A 501                 O   HOH A 566     1555   1555  1.66  
LINK        NI    NI A 502                 O   HOH A 540     1555   1555  2.46  
LINK        NI    NI A 502                 OE2 GLU F 126     1555   1555  2.29  
LINK        NI    NI A 502                 OE1 GLU F 126     1555   1555  2.36  
LINK        NI    NI A 502                 O   HOH F 357     1555   1555  2.01  
LINK        NI    NI A 502                 O   HOH F 375     1555   1555  2.01  
LINK        NI    NI A 503                 O   HOH A 565     1555   1555  2.54  
CISPEP   1 ALA A   31    PRO A   32          0        -3.23                     
CISPEP   2 SER A   72    PRO A   73          0        -7.47                     
SITE     1 AC1  6 HIS A  65  HIS A  71  HOH A 512  HOH A 514                    
SITE     2 AC1  6 HOH A 523  HOH A 566                                          
SITE     1 AC2  5 HIS A  36  HOH A 540  GLU F 126  HOH F 357                    
SITE     2 AC2  5 HOH F 375                                                     
SITE     1 AC3  2 LYS A  13  HOH A 565                                          
SITE     1 AC4  7 TRP A  28  LEU A  56  SER A  57  PHE A  58                    
SITE     2 AC4  7 MET A  91  HOH A 557  HOH A 568                               
SITE     1 AC5  7 ARG A  69  SER F  94  ASN F  95  LYS F  99                    
SITE     2 AC5  7 ASN F 180  HOH F 339  HOH F 344                               
SITE     1 AC6  5 SER A  33  GLY A  34  GLU F 128  HOH F 353                    
SITE     2 AC6  5 HOH F 357                                                     
SITE     1 AC7  3 PRO A  83  LEU A  86  HOH A 559                               
SITE     1 AC8  7 ARG A  69  ASN A  99  ILE A 100  ILE A 101                    
SITE     2 AC8  7 GLN F 154  SER F 201  HOH F 320                               
CRYST1   79.297   94.502   44.873  90.00  90.00  90.00 P 21 21 2     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      0.012611  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010582  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.022285        0.00000