Submission Details

Submitter:

Classification:
Definitive
GENCC:100001
Gene:
Disease:
complex neurodevelopmental disorder
Mode Of Inheritance:
Autosomal dominant
Evaluated Date:
08/24/2021
Evidence/Notes:

CNOT3 (HGNC: 7879) encodes the CCR4-NOT transcription complex subunit 3, which is a component of the CCR4-NOT complex. The protein plays as a global regulator of RNA polymerase II transcription. Genetic predisposition in CNOT3 have been observed in patients with ID/ASD (PMID: 31201375; 32720325; 31474762), T-cell acute lymphoblastic leukemia (PMID: 23263491), lung cancer (PMID: 31177396; PMID: 3053184), polyposis adenomas (PMID: 31231471); colorectal cancer (PMID: 2789937). Typical phenotypes of complex neurodevelopmental disorder (MONDO: 0100038) have been repeatedly observed across studies, and identical variants detected in unrelated probands inherited by autosomal dominant mechanism (HP:0000006). CNOT3 de novo missense and LOF variants, which are absent from gnomAD, have been found in patients from a DDD study (PMID: 31201375) or other study (PMID: 31474762) with identical clinical presentations of ID/ASD, hypotonia and dysmorphic features. Familial transmission of LOF variants have been observed in two families with history of ID (PMID: 32720325). Genetic evidence reached the max score of 12 points. There are no functional studies present in the literature. In summary, CNOT3 is definitively associated with complex neurodevelopmental disorder. This classification was approved by the ClinGen Intellectual Disability and Autism Gene Curation Expert Panel on 08/24/2021 (SOP Version 8).

PubMed IDs:
31201375 32720325
Public Report:
Assertion Criteria:
Submitter Submitted Date:
12/05/2025

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