Annotations: 2CTN

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2ctna_	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	Troponin C	chicken (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EF-hand_7_5	e2ctnA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_5	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TROPONIN C	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding calcium-dependent protein binding protein binding cytoskeletal protein binding troponin I binding	multicellular organismal movement musculoskeletal movement multicellular organismal process system process nervous system process neuromuscular process skeletal muscle contraction muscle contraction muscle system process striated muscle contraction heart process circulatory system process cardiac muscle contraction heart contraction multicellular organismal movement musculoskeletal movement multicellular organismal process system process nervous system process neuromuscular process skeletal muscle contraction muscle contraction muscle system process striated muscle contraction heart process circulatory system process cardiac muscle contraction heart contraction blood circulation	striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber cardiac Troponin complex cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
A	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A	IPR002048	EF-hand domain	Domain
A	IPR011992	EF-hand domain pair	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.