Homologous Superfamily

Nuclear receptor coactivator, Ncoa-type, interlocking domain superfamily (IPR037077)

Short name: Nuc_rcpt_coact_Ncoa_int_sf

Overlapping entries


This entry represents the interlocking domain superfamily of the eukaryotic nuclear receptor coactivators Ncoa1, Ncoa2 and Ncoa3. The interlocking domain forms a 3-helical non-globular array that forms interlocked heterodimers with its target.

Nuclear receptors are ligand-activated transcription factors involved in the regulation of many processes, including development, reproduction and homeostasis. Nuclear receptor coactivators act to modulate the function of nuclear receptors. Coactivators associate with promoters and enhancers primarily through protein-protein contacts to facilitate the interaction between DNA-bound transcription factors and the transcription machinery. In addition to their role as coactivators of various nuclear receptors, Ncoa1 and Ncoa3 both have histone acetyltransferase activity (EC:, but Ncoa2 does not [PMID: 14757047, PMID: 15145939].

GO terms

Biological Process

GO:0006355 regulation of transcription, DNA-templated

Molecular Function

GO:0035257 nuclear hormone receptor binding
GO:0003713 transcription coactivator activity

Cellular Component

GO:0005634 nucleus

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.