PDB Short entry for 1BTE
HEADER    TRANSFERASE                             01-SEP-98   1BTE              
TITLE     CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF THE TYPE II ACTIVIN  
TITLE    2 RECEPTOR                                                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (ACTIVIN RECEPTOR TYPE II);                        
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: LIGAND-BINDING DOMAIN;                                     
COMPND   5 EC: 2.7.1.-;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   3 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE   4 ORGANISM_TAXID: 10090;                                               
SOURCE   5 EXPRESSION_SYSTEM: PICHIA PASTORIS;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 4922;                                       
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: SMD1168;                                   
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PPIC9K                                    
KEYWDS    RECEPTOR, SERINE KINASE, LIGAND BINDING DOMAIN, THREE-FINGER TOXIN,   
KEYWDS   2 TRANSFERASE                                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.GREENWALD,W.FISCHER,W.VALE,S.CHOE                                   
REVDAT   5   13-JUL-11 1BTE    1       VERSN                                    
REVDAT   4   24-FEB-09 1BTE    1       VERSN                                    
REVDAT   3   01-APR-03 1BTE    1       JRNL                                     
REVDAT   2   29-DEC-99 1BTE    4       HEADER COMPND REMARK JRNL                
REVDAT   2 2                   4       ATOM   SOURCE SEQRES                     
REVDAT   1   09-FEB-99 1BTE    0                                                
JRNL        AUTH   J.GREENWALD,W.H.FISCHER,W.W.VALE,S.CHOE                      
JRNL        TITL   THREE-FINGER TOXIN FOLD FOR THE EXTRACELLULAR LIGAND-BINDING 
JRNL        TITL 2 DOMAIN OF THE TYPE II ACTIVIN RECEPTOR SERINE KINASE.        
JRNL        REF    NAT.STRUCT.BIOL.              V.   6    18 1999              
JRNL        REFN                   ISSN 1072-8368                               
JRNL        PMID   9886286                                                      
JRNL        DOI    10.1038/4887                                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 83.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 30005                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.181                           
REMARK   3   FREE R VALUE                     : 0.222                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1500                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1484                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 56                                      
REMARK   3   SOLVENT ATOMS            : 202                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 18.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.60                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.086         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.092         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.063         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.013 ; 0.020               
REMARK   3    ANGLE DISTANCE                  (A) : 0.029 ; 0.040               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.032 ; 0.050               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.141 ; 0.150               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.171 ; 0.300               
REMARK   3    MULTIPLE TORSION                (A) : 0.256 ; 0.300               
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : 5.500 ; 7.000               
REMARK   3    STAGGERED                 (DEGREES) : 16.500; 15.000              
REMARK   3    TRANSVERSE                (DEGREES) : 20.600; 20.000              
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.613 ; 2.000                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.678 ; 3.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.007 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.989 ; 3.000                
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1BTE COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-JUN-99.                  
REMARK 100 THE RCSB ID CODE IS RCSB008230.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-JAN-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 4.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 5.0.2                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 30005                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 83.9                               
REMARK 200  DATA REDUNDANCY                : 4.200                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.03400                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.54                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 37.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.90                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.29500                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 0.300                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIRAS                        
REMARK 200 SOFTWARE USED: MLPHARE, ARP/WARP, DM                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 42.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM SODIUM ACETATE, PH 4.5, 5% PEG    
REMARK 280  8000, 0.5M NACL                                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3                              
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                                                                      
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                                                                      
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: DIMERIC                           
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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH B 168  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 156  LIES ON A SPECIAL POSITION.                          
REMARK 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 GLYCOSYLATION FROM HOST EXPRESSION SYSTEM WAS REMOVED USING          
REMARK 400  ENDOGLYCOSIDASE H, LEAVING BEHIND THE N-ACETYL GLUCOSAMINE          
REMARK 400  (NAG) RESIDUES ON THE ASN.                                          
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     SER A     6                                                      
REMARK 465     ASP A    34                                                      
REMARK 465     LYS A    35                                                      
REMARK 465     ASP A    36                                                      
REMARK 465     LYS A    37                                                      
REMARK 465     SER B     6                                                      
REMARK 465     MET B   101                                                      
REMARK 465     GLU B   102                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ARG A  38    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LEU A  61    CG   CD1  CD2                                       
REMARK 470     ASP A  63    CG   OD1  OD2                                       
REMARK 470     ARG A  69    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     THR A  70    OG1  CG2                                            
REMARK 470     GLU A 102    O                                                   
REMARK 470     GLU B   7    CG   CD   OE1  OE2                                  
REMARK 470     LYS B  35    CG   CD   CE   NZ                                   
REMARK 470     ARG B  38    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ASP B  63    CG   OD1  OD2                                       
REMARK 470     ARG B  69    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU B  80    CG   CD   OE1  OE2                                  
REMARK 470     GLU B 100    CG   CD   OE1  OE2                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   154     O    HOH A   154     2665     0.44            
REMARK 500   O    HOH B   149     O    HOH B   149     2555     0.59            
REMARK 500   O    HOH A   214     O    HOH B   222     2555     2.09            
REMARK 500   OE2  GLU B    93     O    HOH B   149     2555     2.10            
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    TYR A  32     -117.21   -124.25                                   
REMARK 500    ASN B  17       31.05    -98.59                                   
REMARK 500    SER B  78       66.20     31.61                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    ASP B  68         10.91                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 188        DISTANCE =  5.02 ANGSTROMS                       
REMARK 525    HOH A 242        DISTANCE =  5.28 ANGSTROMS                       
REMARK 525    HOH A 250        DISTANCE =  5.60 ANGSTROMS                       
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600 O6 OF NAG A 124 AND NAG B 124 IS MODELED                             
REMARK 600 IN TWO ALTERNATIVE CONFORMATIONS.                                    
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: NAG                                                 
REMARK 800 EVIDENCE_CODE: AUTHOR                                                
REMARK 800 SITE_DESCRIPTION: GLYCOSYLATION SITE                                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG A 124                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG B 124                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG A 147                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG B 147                 
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE NUMBERING OF RESIDUES IN THE PDB FILE IS                         
REMARK 999 BASED ON THE SEQUENCE WITHOUT THE SIGNAL                             
REMARK 999 PEPTIDE.                                                             
REMARK 999                                                                      
REMARK 999 THE MOLECULE IN THE CRYSTAL IS LACKING THE                           
REMARK 999 14 C-TERMINAL RESIDUES WHICH HAVE BEEN                               
REMARK 999 REMOVED BY TREATMENT WITH ENDOPROTEINASE GLUC,                       
REMARK 999 MAKING GLU 102, THE NEW C-TERMINUS                                   
DBREF  1BTE A    6   102  UNP    P27038   ACVR2_MOUSE     25    121             
DBREF  1BTE B    6   102  UNP    P27038   ACVR2_MOUSE     25    121             
SEQRES   1 A   97  SER GLU THR GLN GLU CYS LEU PHE PHE ASN ALA ASN TRP          
SEQRES   2 A   97  GLU ARG ASP ARG THR ASN GLN THR GLY VAL GLU PRO CYS          
SEQRES   3 A   97  TYR GLY ASP LYS ASP LYS ARG ARG HIS CYS PHE ALA THR          
SEQRES   4 A   97  TRP LYS ASN ILE SER GLY SER ILE GLU ILE VAL LYS GLN          
SEQRES   5 A   97  GLY CYS TRP LEU ASP ASP ILE ASN CYS TYR ASP ARG THR          
SEQRES   6 A   97  ASP CYS ILE GLU LYS LYS ASP SER PRO GLU VAL TYR PHE          
SEQRES   7 A   97  CYS CYS CYS GLU GLY ASN MET CYS ASN GLU LYS PHE SER          
SEQRES   8 A   97  TYR PHE PRO GLU MET GLU                                      
SEQRES   1 B   97  SER GLU THR GLN GLU CYS LEU PHE PHE ASN ALA ASN TRP          
SEQRES   2 B   97  GLU ARG ASP ARG THR ASN GLN THR GLY VAL GLU PRO CYS          
SEQRES   3 B   97  TYR GLY ASP LYS ASP LYS ARG ARG HIS CYS PHE ALA THR          
SEQRES   4 B   97  TRP LYS ASN ILE SER GLY SER ILE GLU ILE VAL LYS GLN          
SEQRES   5 B   97  GLY CYS TRP LEU ASP ASP ILE ASN CYS TYR ASP ARG THR          
SEQRES   6 B   97  ASP CYS ILE GLU LYS LYS ASP SER PRO GLU VAL TYR PHE          
SEQRES   7 B   97  CYS CYS CYS GLU GLY ASN MET CYS ASN GLU LYS PHE SER          
SEQRES   8 B   97  TYR PHE PRO GLU MET GLU                                      
MODRES 1BTE ASN A   24  ASN  GLYCOSYLATION SITE                                 
MODRES 1BTE ASN A   47  ASN  GLYCOSYLATION SITE                                 
MODRES 1BTE ASN B   24  ASN  GLYCOSYLATION SITE                                 
MODRES 1BTE ASN B   47  ASN  GLYCOSYLATION SITE                                 
HET    NAG  A 124      15                                                       
HET    NAG  B 124      15                                                       
HET    NAG  A 147      14                                                       
HET    NAG  B 147      14                                                       
HETNAM     NAG N-ACETYL-D-GLUCOSAMINE                                           
FORMUL   3  NAG    4(C8 H15 N O6)                                               
FORMUL   7  HOH   *202(H2 O)                                                    
HELIX    1   1 TRP A   18  ASP A   21  1                                   4    
HELIX    2   2 CYS A   91  GLU A   93  5                                   3    
HELIX    3   3 TRP B   18  ASP B   21  1                                   4    
HELIX    4   4 CYS B   91  GLU B   93  5                                   3    
SHEET    1   A 2 GLU A  10  PHE A  14  0                                        
SHEET    2   A 2 THR A  26  PRO A  30 -1  N  GLU A  29   O  CYS A  11           
SHEET    1   B 3 TYR A  82  CYS A  86  0                                        
SHEET    2   B 3 HIS A  40  ILE A  48 -1  N  TRP A  45   O  TYR A  82           
SHEET    3   B 3 SER A  51  TRP A  60 -1  N  TRP A  60   O  HIS A  40           
SHEET    1   C 2 CYS A  72  GLU A  74  0                                        
SHEET    2   C 2 PHE A  95  TYR A  97  1  N  SER A  96   O  CYS A  72           
SHEET    1   D 2 GLU B  10  PHE B  14  0                                        
SHEET    2   D 2 THR B  26  PRO B  30 -1  N  GLU B  29   O  CYS B  11           
SHEET    1   E 3 TYR B  82  CYS B  86  0                                        
SHEET    2   E 3 HIS B  40  ILE B  48 -1  N  TRP B  45   O  TYR B  82           
SHEET    3   E 3 SER B  51  TRP B  60 -1  N  TRP B  60   O  HIS B  40           
SHEET    1   F 2 CYS B  72  GLU B  74  0                                        
SHEET    2   F 2 PHE B  95  TYR B  97  1  N  SER B  96   O  CYS B  72           
SSBOND   1 CYS A   11    CYS A   41                          1555   1555  2.06  
SSBOND   2 CYS A   31    CYS A   59                          1555   1555  2.06  
SSBOND   3 CYS A   66    CYS A   85                          1555   1555  2.02  
SSBOND   4 CYS A   72    CYS A   84                          1555   1555  2.08  
SSBOND   5 CYS A   86    CYS A   91                          1555   1555  2.09  
SSBOND   6 CYS B   11    CYS B   41                          1555   1555  2.06  
SSBOND   7 CYS B   31    CYS B   59                          1555   1555  2.05  
SSBOND   8 CYS B   66    CYS B   85                          1555   1555  2.02  
SSBOND   9 CYS B   72    CYS B   84                          1555   1555  2.09  
SSBOND  10 CYS B   86    CYS B   91                          1555   1555  2.04  
LINK         ND2 ASN A  24                 C1  NAG A 124     1555   1555  1.43  
LINK         ND2 ASN A  47                 C1  NAG A 147     1555   1555  1.43  
LINK         ND2 ASN B  24                 C1  NAG B 124     1555   1555  1.41  
LINK         ND2 ASN B  47                 C1  NAG B 147     1555   1555  1.41  
SITE     1 NAG  4 ASN A  24  ASN A  47  ASN B  24  ASN B  47                    
SITE     1 AC1 10 PHE A  13  ASN A  24  GLN A  25  THR A  26                    
SITE     2 AC1 10 GLY A  27  VAL A  28  HOH A 189  HOH A 192                    
SITE     3 AC1 10 HOH A 202  HOH A 218                                          
SITE     1 AC2  9 PHE B  13  ASN B  24  GLN B  25  THR B  26                    
SITE     2 AC2  9 GLY B  27  VAL B  28  HOH B 158  HOH B 183                    
SITE     3 AC2  9 HOH B 219                                                     
SITE     1 AC3 12 TRP A  45  ASN A  47  GLY A  50  ILE A  52                    
SITE     2 AC3 12 TYR A  97  HOH A 150  HOH A 176  HOH A 221                    
SITE     3 AC3 12 HOH A 230  TRP B  60  LEU B  61  ASP B  62                    
SITE     1 AC4  7 TRP B  45  ASN B  47  GLY B  50  TYR B  82                    
SITE     2 AC4  7 TYR B  97  HOH B 181  HOH B 192                               
CRYST1   71.630   71.630   37.380  90.00  90.00 120.00 P 3           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      0.013961  0.008060  0.000000        0.00000                         
SCALE2      0.000000  0.016120  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.026752        0.00000                         
MTRIX1   1  0.894500 -0.445800 -0.034900      -19.71370    1                    
MTRIX2   1  0.444500  0.895000 -0.038200      -37.41570    1                    
MTRIX3   1  0.048200  0.018700  0.998700      -14.03470    1