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Early onset or syndromic epilepsy

Gene: TUBGCP2

Green List (high evidence)

TUBGCP2 (tubulin gamma complex associated protein 2)
EnsemblGeneIds (GRCh38): ENSG00000130640
EnsemblGeneIds (GRCh37): ENSG00000130640
TUBGCP2 is in 5 panels

2 reviews

Sarah Leigh (Genomics England Curator)

The rating of this gene has been updated following NHS Genomic Medicine Service approval.
Created: 3 Mar 2022, 5:34 p.m. | Last Modified: 3 Mar 2022, 5:34 p.m.
Panel Version: 2.491

Arina Puzriakova (Genomics England Curator)

Green List (high evidence)

Comment on list classification: There is enough evidence to rate this gene GREEN at the next major review - at least four unrelated individuals with three distinct TUBGCP2 variants, associated with generalised seizures.
Created: 27 Aug 2020, 11:09 a.m. | Last Modified: 27 Aug 2020, 11:09 a.m.
Panel Version: 2.146
Associated with phenotype in OMIM, and a probable gene for Microcephaly and Lissencephaly Spectrum Disorders in G2P.

PMID: 31630790 (2019) - Five patients from four families with biallelic variants in the TUBGCP2 gene. Affected individuals shared phenotypic features that included progressive microcephaly (4/4), developmental delay (5/5, mild-severe), generalised seizures (4/5, onset at 6yrs-9m, 5m, and 7m). All patients exhibited lissencephaly-spectrum phenotypes with varying degrees of cortical malformations on brain imaging including pachygyria and subcortical band heterotopia.

All variants segregated with disease in each family. Analysis of fibroblasts derived from one patient with a splice site variant revealed several abnormal transcripts, predicted to result in LoF. No further functional studies of other variants or patient cells were performed.
Sources: Literature
Created: 27 Aug 2020, 11:07 a.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Pachygyria, microcephaly, developmental delay, and dysmorphic facies, with or without seizures, 618737

Publications

Details

Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Literature
Phenotypes
  • Pachygyria, microcephaly, developmental delay, and dysmorphic facies, with or without seizures, 618737
Tags
gene-checked
Clinvar variants
Variants in TUBGCP2
Penetrance
None
Publications
Panels with this gene

History Filter Activity

4 May 2022, Gel status: 3

Added Tag

Catherine Snow (Genomics England)

Tag gene-checked tag was added to gene: TUBGCP2.

3 Mar 2022, Gel status: 3

Removed Tag

Sarah Leigh (Genomics England Curator)

Tag for-review was removed from gene: TUBGCP2.

3 Mar 2022, Gel status: 3

Added New Source, Status Update

Sarah Leigh (Genomics England Curator)

Source Expert Review Green was added to TUBGCP2. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)

27 Aug 2020, Gel status: 2

Entity classified by Genomics England curator

Arina Puzriakova (Genomics England Curator)

Gene: tubgcp2 has been classified as Amber List (Moderate Evidence).

27 Aug 2020, Gel status: 1

Created, Added New Source, Added Tag, Set mode of inheritance, Set publications, Set Phenotypes

Arina Puzriakova (Genomics England Curator)

gene: TUBGCP2 was added gene: TUBGCP2 was added to Genetic epilepsy syndromes. Sources: Literature for-review tags were added to gene: TUBGCP2. Mode of inheritance for gene: TUBGCP2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TUBGCP2 were set to 31630790 Phenotypes for gene: TUBGCP2 were set to Pachygyria, microcephaly, developmental delay, and dysmorphic facies, with or without seizures, 618737 Review for gene: TUBGCP2 was set to GREEN