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Early onset or syndromic epilepsy v5.6 TRIT1 Eleanor Williams changed review comment from: The rating of this gene has been updated togreenand the mode of inheritance set to'BIALLELIC, autosomal or pseudoautosomal'following NHS Genomic Medicine Service approval.; to: The rating of this gene has been updated to green and the mode of inheritance set to 'BIALLELIC, autosomal or pseudoautosomal' following NHS Genomic Medicine Service approval.
Early onset or syndromic epilepsy v5.6 TRIT1 Achchuthan Shanmugasundram Tag Q4_23_promote_green was removed from gene: TRIT1.
Early onset or syndromic epilepsy v5.6 TRIT1 Eleanor Williams edited their review of gene: TRIT1: Added comment: The rating of this gene has been updated togreenand the mode of inheritance set to'BIALLELIC, autosomal or pseudoautosomal'following NHS Genomic Medicine Service approval.; Changed rating: GREEN
Early onset or syndromic epilepsy v5.5 TRIT1 Achchuthan Shanmugasundram Source NHS GMS was added to TRIT1.
Source Expert Review Green was added to TRIT1.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Early onset or syndromic epilepsy v4.196 TRIT1 Achchuthan Shanmugasundram Tag gene-checked tag was added to gene: TRIT1.
Early onset or syndromic epilepsy v4.143 TRIT1 Eleanor Williams Classified gene: TRIT1 as Amber List (moderate evidence)
Early onset or syndromic epilepsy v4.143 TRIT1 Eleanor Williams Added comment: Comment on list classification: Promoting this gene to amber with a recommendation for green rating following GMS review.
Early onset or syndromic epilepsy v4.143 TRIT1 Eleanor Williams Gene: trit1 has been classified as Amber List (Moderate Evidence).
Early onset or syndromic epilepsy v4.142 TRIT1 Eleanor Williams gene: TRIT1 was added
gene: TRIT1 was added to Early onset or syndromic epilepsy. Sources: Literature
Q4_23_promote_green tags were added to gene: TRIT1.
Mode of inheritance for gene: TRIT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRIT1 were set to 28185376; 24901367
Phenotypes for gene: TRIT1 were set to Combined oxidative phosphorylation deficiency 35, OMIM:617873; combined oxidative phosphorylation deficiency 35, MONDO:0054742
Added comment: Associated with Combined oxidative phosphorylation deficiency 35, OMIM: 617873 (AR)

4 cases reported with biallelic variants in this gene and a syndromic phenotype that includes epilepsy.

PMID: 28185376 - Kernohan et al 2017 - report 4 individuals from 3 unrelated families with recessive mutations in TRIT1 identified by WES and confirmed by Sanger sequencing. Parents were heterozygous for the variants. All patients presented with syndrome features which included microcephaly, profound developmental delay, hypotonia, epilepsy, and brain anomalies.

PMID: 24901367 - Yarham et al 2014 - used WES to identify a homozygous p.Arg323Gln mutation in the TRIT1 gene in 2 affected children that segregates within a consanguineous UK-Pakistani family. The children encephalopathy and myoclonic epilepsy.
Sources: Literature