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Hereditary neuropathy NOT PMP22 copy number

Gene: POLR3A

Amber List (moderate evidence)

POLR3A (RNA polymerase III subunit A)
EnsemblGeneIds (GRCh38): ENSG00000148606
EnsemblGeneIds (GRCh37): ENSG00000148606
OMIM: 614258, Gene2Phenotype
POLR3A is in 20 panels

2 reviews

Louise Daugherty (Genomics England Curator)

I don't know

Gene rated Amber : From feedback from Genomics England Clinical team (Anna de Burca and Meriel McEntagart): Extension of panel scope - ataxia with neuropathy / Broader phenotype: spastic ataxia with abnormal nerve conduction in 8/14 cases
Created: 7 Dec 2019, 12:03 a.m. | Last Modified: 7 Dec 2019, 12:03 a.m.
Panel Version: 0.86
This gene has changed ratings because the panel for R78 was going to be a broad panel (to include conditions where neuropathy is part of a more complex phenotype or where there is overlap with another neurological presentation eg. HSP) but subsequently during the follow up call on 21st June with the Test Group it was agreed that it was more clinically relevant for R78 to be restricted to genes that are associated with isolated neuropathy, which this panel represents. For genes that represent the broader phenotype see https://panelapp.genomicsengland.co.uk/panels/85/.
Created: 6 Dec 2019, 10:25 p.m. | Last Modified: 6 Dec 2019, 10:25 p.m.
Panel Version: 0.84
Review and rating uploaded from file (Curation_Template_GMS_Neuro_AR_20190521.xlsx) submitted by Alex Rossor (UCL Institute of Neurology) on behalf of London North GLH for GMS Neurology specialist test group.
Created: 11 Jun 2019, 1:40 p.m.

Alexander Rossor (UCL Institute of Neurology)

Green List (high evidence)

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Adolescent onset progressive spastic ataxia, tremor, involvement of central sensory tracts, dental complications (hypodontia, severe peridontal disease. Bilateral hyperintensities on MRI from the superior cerebellar peduncle to the dentate nucleus / midbrain. Abnormal nerve conduction in 8 out of 14 cases.

Publications

Details

Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Amber
  • London North GLH
  • NHS GMS
  • NHS GMS
  • London North GLH
Phenotypes
  • Bilateral hyperintensities on MRI from the superior cerebellar peduncle to the dentate nucleus / midbrain
  • Leukodystrophy, hypomyelinating, 7, with or without oligodontia and/or hypogonadotropic hypogonadism, 607694
  • Adolescent onset progressive spastic ataxia, tremor, involvement of central sensory tracts, dental complications
OMIM
614258
Clinvar variants
Variants in POLR3A
Penetrance
None
Publications
Panels with this gene

History Filter Activity

6 Dec 2019, Gel status: 2

Added New Source, Status Update

Louise Daugherty (Genomics England Curator)

Source Expert Review Amber was added to POLR3A. Rating Changed from Red List (low evidence) to Amber List (moderate evidence)

5 Dec 2019, Gel status: 1

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

Ellen McDonagh (Genomics England Curator)

gene: POLR3A was added gene: POLR3A was added to Hereditary neuropathy NOT PMP22 copy number. Sources: NHS GMS,London North GLH Mode of inheritance for gene: POLR3A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: POLR3A were set to 28459997 Phenotypes for gene: POLR3A were set to Bilateral hyperintensities on MRI from the superior cerebellar peduncle to the dentate nucleus / midbrain; Leukodystrophy, hypomyelinating, 7, with or without oligodontia and/or hypogonadotropic hypogonadism, 607694; Adolescent onset progressive spastic ataxia, tremor, involvement of central sensory tracts, dental complications