FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

CHRAC

ID (Ontology)

GO:0008623 (Gene Ontology)

Definition

An ISWI complex that contains an ATPase subunit of the ISWI family (SNF2H in mammals, Isw2 in S. cerevisiae), an ACF1 homolog, and additional small histone fold subunits (generally two of these, but Xenopus has only one and some additional non-conserved subunits). CHRAC plays roles in the regulation of RNA polymerase II transcription and in DNA replication and repair.[ PubMed:15284901 PubMed:16568949 PubMed:21810179 PubMed:9252192 ]

Also Known As

"chromatin accessibility complex"

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_CELLULAR_COMPONENT

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	Gene Groups	Genes
CHRAC (all annotations which use CV term, excluding "NOT" statements)
part_of \| CHRAC	--

Spanning Tree (Parents/Children)

  SWI/SNF superfamily-type complex
   |__ISWI-type complex
       |__CHRAC  5 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	ISWI-type complex
Part of
Synonyms & Secondary IDs
Synonyms
	"chromatin accessibility complex" EXACT "ISW2 complex" NARROW
Secondary IDs

External Crossreferences & Linkouts