Severe microcephaly
Gene: TSEN15The rating of this gene has been updated following NHS Genomic Medicine Service approval.Created: 10 Mar 2022, 1:37 p.m. | Last Modified: 10 Mar 2022, 1:37 p.m.
Panel Version: 2.292
Comment on list classification: TSEN15 was added and rated Green by Zornitza Stark based on PMID:27392077 (Breuss et al, 2016) who report three homozygous TSEN15 variants in four individuals from three families. All affected individuals developed progressive microcephaly of relevant severity, which represented an early and main feature of the disease presentation.
There is sufficient evidence to promote this gene to Green at the next GMS panel update.Created: 18 May 2021, 12:54 p.m. | Last Modified: 18 May 2021, 12:54 p.m.
Panel Version: 2.160
PMID 27392077 Reports four individuals from three families with PCH type 2 and different homozygous missense variants, all had progressive microcephaly (between -3SD and -9.7SD). Functional studies indicated that all variants resulted in almost complete lack of in vitro tRNA cleavage activity.
Sources: Expert listCreated: 4 Sep 2020, 10:33 a.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Pontocerebellar hypoplasia, type 2F MIM#617026
Publications
Variants in this GENE are reported as part of current diagnostic practice
Tag Q2_21_rating was removed from gene: TSEN15.
Source Expert Review Green was added to TSEN15. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Tag Q2_21_rating tag was added to gene: TSEN15.
Gene: tsen15 has been classified as Amber List (Moderate Evidence).
Phenotypes for gene: TSEN15 were changed from Pontocerebellar hypoplasia, type 2F MIM#617026 to Pontocerebellar hypoplasia, type 2F, OMIM:617026
gene: TSEN15 was added gene: TSEN15 was added to Severe microcephaly. Sources: Expert list Mode of inheritance for gene: TSEN15 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TSEN15 were set to 27392077 Phenotypes for gene: TSEN15 were set to Pontocerebellar hypoplasia, type 2F MIM#617026 Review for gene: TSEN15 was set to GREEN gene: TSEN15 was marked as current diagnostic