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2ARP

Activin A in complex with Fs12 fragment of follistatin

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0008083molecular_functiongrowth factor activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NI A 501
ChainResidue
AHIS65
AHIS71
AHOH512
AHOH514
AHOH523
AHOH566

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE NI A 502
ChainResidue
FHOH357
FHOH375
AHIS36
AHOH540
FGLU126

site_idAC3
Number of Residues2
DetailsBINDING SITE FOR RESIDUE NI A 503
ChainResidue
ALYS13
AHOH565

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE 1PG A 401
ChainResidue
ATRP28
ALEU56
ASER57
APHE58
AMET91
AHOH557
AHOH568

site_idAC5
Number of Residues7
DetailsBINDING SITE FOR RESIDUE GOL F 301
ChainResidue
AARG69
FSER94
FASN95
FLYS99
FASN180
FHOH339
FHOH344

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE GOL F 302
ChainResidue
ASER33
AGLY34
FGLU128
FHOH353
FHOH357

site_idAC7
Number of Residues3
DetailsBINDING SITE FOR RESIDUE GOL A 303
ChainResidue
APRO83
ALEU86
AHOH559

site_idAC8
Number of Residues7
DetailsBINDING SITE FOR RESIDUE GOL F 304
ChainResidue
AARG69
AASN99
AILE100
AILE101
FGLN154
FSER201
FHOH320

Functional Information from PROSITE/UniProt
site_idPS00250
Number of Residues16
DetailsTGF_BETA_1 TGF-beta family signature. IiaPsgYhanyCeGeC
ChainResidueDetails
AILE29-CYS44

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues23
DetailsDomain: {"description":"Follistatin-like 1"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues54
DetailsDomain: {"description":"Kazal-like 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00798","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues23
DetailsDomain: {"description":"Follistatin-like 2"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues55
DetailsDomain: {"description":"Kazal-like 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00798","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

242842

PDB entries from 2025-10-08

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