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Intellectual disability

Gene: GABRG2

Green List (high evidence)

GABRG2 (gamma-aminobutyric acid type A receptor gamma2 subunit)
EnsemblGeneIds (GRCh38): ENSG00000113327
EnsemblGeneIds (GRCh37): ENSG00000113327
OMIM: 137164, Gene2Phenotype
GABRG2 is in 8 panels

3 reviews

Sarah Leigh (Genomics England Curator)

Comment when marking as ready: Associated with phenotype in OMIM and as a probable G2P for Epilepsy, generalized, with febrile seizures plus, type 3 611277. Two variants associated with more severe phenotypes including intellectual disability in at least six unrelated cases (PMID 25124326 & 28460589)
Created: 6 Feb 2018, 11:35 a.m.
Comment on phenotypes: Epilepsy, generalized, with febrile seizures plus, type 3 611277;Febrile seizures, familial, 8 611277;{Epilepsy, childhood absence, susceptibility to, 2} 607681
Created: 6 Feb 2018, 11:15 a.m.

BRIDGE consortium (NIHRBR-RD)

Green List (high evidence)

This is a pertinent gene from the NIHR BioResource - Rare Diseases Study (NIHRBR-RD) BRIDGE Study : SPEED (Specialist Pathology: Evaluating Exomes in Diagnostics) which covers epilepsies, movement and microcephaly disorders, this gene is on the SPEED_NEURO_20170705 gene list. Evidences used for SPEED NEURO gene list: in_ddg2p_201507;in_ddg2p_2_4_2017;in_omim_20150205_epilepsies;in_movement_disorder_list;in_UKGTN_v12 . Main mutation mechanism : NA
Created: 27 Jul 2017, 6:03 p.m.
Evidences key, gene present in following gene lists and main mutation mechanism : ddg2p_201507; omim_20150205_epilepsies; manju_list; UKGTN_v12; neuro_20160418_strict; NA. This is a pertinent gene from the BRIDGE Study : SPEED (Specialist Pathology: Evaluating Exomes in Diagnostics) which covers epilepsies, movement and microcephaly disorders, this gene comes from the SPEED_NEURO_v3.0_20170404 gene list. The following experts from the BRIDGE consortium NIHRBR-RD contributed to this panel: - Professor F. Lucy Raymond, Cambridge Institute for Medical Research, University of Cambridge - Manju Kurian, Paediatric neurologist, Great Ormond Street Hosptial - Keren Carss, NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust - Alba Sanchis-Juan, NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust - Marie Erwood NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust - Louise Daugherty, NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust
Created: 19 Jul 2017, 12:30 p.m.

Mode of inheritance
Unknown

Publications

  • 25529582
  • omim.org
  • Personal communication with NIHRBRRD BRIDGE SPEED
  • Version 12 ukgtn.nhs.uk

Louise Daugherty (Genomics England Curator)

Comment on list classification: Changed rating of gene from Amber to Green. This gene was rated as Green in v2.467 and incorrectly automatically demoted to Amber in v2.468. This was due to a defect in the automatic PanelApp uploading tool where a reference gene list was added as a new Source (Victorian Clinical Genetics Services), and under certain conditions associated to previous sources listed, resulted in the rating of the gene being automatically changed when it should not have been.
Created: 29 Sep 2018, 9:50 p.m.
Comment on list classification: This gene is from an expert list and needs further assessment by the Genomics England curation team to assess inclusion and pertinence to this panel.
Created: 20 Jul 2017, 11:54 a.m.

Details

Mode of Inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Sources
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Epilepsy, generalized, with febrile seizures plus, type 3 611277
  • Febrile seizures, familial, 8 611277
  • {Epilepsy, childhood absence, susceptibility to, 2} 607681
OMIM
137164
Clinvar variants
Variants in GABRG2
Penetrance
Complete
Publications
Panels with this gene

History Filter Activity

29 Sep 2018, Gel status: 3

Entity classified by Genomics England curator

Louise Daugherty (Genomics England Curator)

Gene: gabrg2 has been classified as Green List (High Evidence).

28 Sep 2018, Gel status: 2

Added New Source

Louise Daugherty (Genomics England Curator)

Source Victorian Clinical Genetics Services was added to GABRG2.

12 Mar 2018, Gel status: 4

Panel promoted to version 2.0

Ellen McDonagh (Genomics England Curator)

12.03.2018: Due to major updates completed (Phase 1, 2 and 3), this panel was promoted to Version 2 in order to reflect the major updates since November 2017 which have resulted in reviews for 836 genes added by Genomics England Curators and the Clinical Team, 130 new Green genes added to the interpretation pipeline (from 751 to 881 Green genes), and the gene total has increased from 1879 to 1927.

12 Mar 2018, Gel status: 4

Set Phenotypes

Ellen McDonagh (Genomics England Curator)

Phenotypes for GABRG2 were set to Epilepsy, generalized, with febrile seizures plus, type 3 611277; Febrile seizures, familial, 8 611277; {Epilepsy, childhood absence, susceptibility to, 2} 607681

12 Mar 2018, Gel status: 4

Set Phenotypes

Ellen McDonagh (Genomics England Curator)

Phenotypes for GABRG2 were set to Epilepsy, generalized, with febrile seizures plus, type 3 611277 Febrile seizures, familial, 8 611277 {Epilepsy, childhood absence, susceptibility to, 2} 607681

12 Mar 2018, Gel status: 4

Added New Source, Set mode of inheritance, Set publications

Ellen McDonagh (Genomics England Curator)

Expert Review Green was added to GABRG2. Panel: Intellectual disability Model of inheritance for gene GABRG2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene GABRG2 was set to ['25124326', '28460589']

20 Jul 2017, Gel status: 2

Gene classified by Genomics England curator

Louise Daugherty (Genomics England Curator)

This gene has been classified as Amber List (Moderate Evidence).

19 Jul 2017, Gel status: 0

Created

BRIDGE consortium (NIHRBR-RD)

GABRG2 was created by BRIDGE

19 Jul 2017, Gel status: 0

Added New Source

BRIDGE consortium (NIHRBR-RD)

GABRG2 was added to Intellectual disabilitypanel. Sources: BRIDGE study SPEED NEURO Tier1 Gene