Sequence Types and Features Ontology

Last uploaded: September 11, 2025
Id http://purl.obolibrary.org/obo/SO_0000727
http://purl.obolibrary.org/obo/SO_0000727
Preferred Name

cis_regulatory_module

Definitions
Requested by Stephen Grossmann Dec 2004. Changed relationship from has_part SO:0000235 TF_binding site to TF_binding_site is part_of SO:0000727 CRM in response to requests from GREEKC initiative in Aug 2020. Removed 3' from definition because 5' UTRs are included as well, notified by Colin Logie of GREEKC. Nov 9 2020. DS Updated name from 'CRM' to 'cis_regulatory_module' on 08 Feb 2021. See GitHub Issue #526. DS Added final sentence to definition as part of GREEKC Feb 16, 2021. See GitHub Issue #534. A regulatory region where transcription factor binding sites are clustered to regulate various aspects of transcription activities. (CRMs can be located a few kb to hundreds of kb upstream of the core promoter, in the coding sequence, within introns, or in the untranslated regions (UTR) sequences, and even on a different chromosome). A single gene can be regulated by multiple CRMs to give precise control of its spatial and temporal expression. CRMs function as nodes in large, intertwined regulatory network. CRM DNA accessibility is subject to regulation by dbTFs and transcription co-TFs.
Synonyms
cis regulatory module
transcription factor module
CRM
TF module
Type http://www.w3.org/2002/07/owl#Class
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