Ontology: Biological Process (GO:0000916)

Definition: The process of an actomyosin ring getting smaller in diameter, in the context of cytokinesis that takes place as part of a cell cycle.

Synonyms: cytokinesis, actomyosin ring contraction; cytokinesis, contractile ring contraction; contractile ring constriction; contractile ring contraction involved in cell cycle cytokinesis

View Ontology: (graph) | (text)

This table lists the methods used to annotate genes either directly to the term actomyosin contractile ring contraction (4 genes) or to its variants containing one or more qualifiers (0 genes). Note that some genes may have been annotated by more than one method so the numbers in the table below may not add up to the totals given here.

Annotation Method	GO Term	# Yeast Genes Annotated
Manually curated (download data)	actomyosin contractile ring contraction	4
High-throughput	none	none
Computational	none	none

Links to Additional Annotations:

• View annotations in multiple organisms using
• Search for S. cerevisiae genes annotated, by the Manually curated or High-throughput methods, to this term or to any terms that are descended from this term, i.e., child terms representing more specific biology than this term.

Annotation details for genes that have been directly annotated to the term actomyosin contractile ring contraction or its variants containing one or more qualifiers (NOT, contributes to, or colocalizes with).

actomyosin contractile ring contraction      4 genes directly annotated to this term
Locus	Evidence	Annotation Method	Reference	Assigned By
ACT1/YFL039C	IDA: Inferred from Direct Assay Assigned on 2006-09-19	manually curated	Bi E, et al.  (1998) Involvement of an actomyosin contractile ring in Saccharomyces cerevisiae cytokinesis. J Cell Biol 142(5):1301-12	SGD
CHS2/YBR038W	IDA: Inferred from Direct Assay Assigned on 2006-06-19	manually curated	VerPlank L and Li R  (2005) Cell cycle-regulated trafficking of Chs2 controls actomyosin ring stability during cytokinesis. Mol Biol Cell 16(5):2529-43	SGD
MLC2/YPR188C	IMP: Inferred from Mutant Phenotype Assigned on 2004-07-22	manually curated	Luo J, et al.  (2004) Identification and functional analysis of the essential and regulatory light chains of the only type II myosin Myo1p in Saccharomyces cerevisiae. J Cell Biol 165(6):843-55	SGD
MYO1/YHR023W	IEP: Inferred from Expression Pattern Assigned on 2006-09-19	manually curated	Bi E, et al.  (1998) Involvement of an actomyosin contractile ring in Saccharomyces cerevisiae cytokinesis. J Cell Biol 142(5):1301-12	SGD
	IEP: Inferred from Expression Pattern Assigned on 2006-09-19	manually curated	Lippincott J and Li R  (1998) Sequential assembly of myosin II, an IQGAP-like protein, and filamentous actin to a ring structure involved in budding yeast cytokinesis. J Cell Biol 140(2):355-66	SGD
	IMP: Inferred from Mutant Phenotype Assigned on 2006-09-19	manually curated	Lord M, et al.  (2005) Cytokinesis depends on the motor domains of myosin-II in fission yeast but not in budding yeast. Mol Biol Cell 16(11):5346-55	SGD

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