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1YV0

Crystal structure of skeletal muscle troponin in the Ca2+-free state

Functional Information from GO Data
ChainGOidnamespacecontents
C0003009biological_processskeletal muscle contraction
C0005509molecular_functioncalcium ion binding
C0005861cellular_componenttroponin complex
C0046872molecular_functionmetal ion binding
I0005861cellular_componenttroponin complex
T0005861cellular_componenttroponin complex
T0006937biological_processregulation of muscle contraction
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG C 162
ChainResidue
CASN107
CASP109
CASP113

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG C 163
ChainResidue
CASN143
CASP145
CASP149
CGLU152

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DADGGGDIStkEL
ChainResidueDetails
CASP29-LEU42
CASP66-PHE78
CASP105-LEU117
CASP141-PHE153

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues11
DetailsCompositional bias: {"description":"Basic and acidic residues","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues20
DetailsRegion: {"description":"Involved in binding TNC and actin"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues35
DetailsDomain: {"description":"EF-hand 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues33
DetailsDomain: {"description":"EF-hand 4","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues18
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

240971

PDB entries from 2025-08-27

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