FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

contractile muscle fiber

ID (Ontology)

GO:0043292 (Gene Ontology)

Definition

Fibers, composed of actin, myosin, and associated proteins, found in cells of smooth or striated muscle.[ ISBN:0815316194 ]

Also Known As

"contractile fibre"

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes
contractile muscle fiber (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

intracellular anatomical structure
 |__cytoplasm_____________________________
membraneless organelle                    |
 |__intracellular membraneless organelle__|
intracellular organelle                   |
 |__intracellular membraneless organelle__|
supramolecular polymer                    |
 |__supramolecular fiber__________________|
cellular anatomical structure             |
 |__cytoplasm_____________________________|
                                          contractile muscle fiber  1093 rec.
                                           |__muscle myosin complex 1 rec.
                                           |__myofibril 1087 rec.
                                           |   |__cardiac myofibril 24 rec.
                                           |   |__costamere 4 rec.
                                           |   |__myofilament(+) 66 rec.
                                           |   |__sarcomere(+) 884 rec.
                                           |   |__skeletal muscle myofibril 8 rec.
                                           |__smooth muscle contractile fiber
                                           |   |__smooth muscle dense body
                                           |__striated muscle dense body 4 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	intracellular membraneless organelle supramolecular fiber
Part of	cytoplasm
Synonyms & Secondary IDs
Synonyms
	"contractile fibre" EXACT
Secondary IDs

External Crossreferences & Linkouts