Hereditary neuropathy
Gene: TTPAEnsemblGeneIds (GRCh38): ENSG00000137561
EnsemblGeneIds (GRCh37): ENSG00000137561
OMIM: 600415, Gene2Phenotype
TTPA is in 11 panels
5 reviews
Louise Daugherty (Genomics England Curator)
The Neurology Specialist Test Group agreed that this gene was recommended for the WGS panel based on a broader phenotype view to include conditions where neuropathy is part of a more complex phenotype or where there is overlap with another neurological presentation eg. HSP. This panel includes conditions where neuropathy is part of a more complex phenotype or where there is overlap with another neurological presentation. This panel as going to be used for R78, 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 and as a result a new panel was created https://panelapp.genomicsengland.co.uk/panels/846/ for this purpose.Created: 7 Dec 2019, 6:08 p.m. | Last Modified: 7 Dec 2019, 6:08 p.m.
Panel Version: 1.352
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.
Review and rating submitted by Natalie Forrester (SWGLH - Bristol Genetics) on behalf of South West GLH for GMS Neurology specialist test group.Created: 29 Apr 2019, 12:53 p.m.
Natalie Forrester (SWGLH - Bristol Genetics)
Unable to find any evidence of clear neuropathy associationCreated: 29 Apr 2019, 12:30 p.m.
Phenotypes
Hereditary Neuropathies
Rita Horvath (Institute of Genetic Medicine, Newcastle University)
Alexander Rossor (UCL Institute of Neurology)
Not a CMT geneCreated: 9 Dec 2015, 8:50 a.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Early onset ataxia and sensory axonal neuropathy similar to Friedreich ataxia, head titubation, normal fat absorption unlike abetalipoproteinaemia, rarely retinitis pigmentosa
Mary Reilly (Institute of Neurology)
Not a CMT geneCreated: 8 Dec 2015, 3:06 p.m.
Details
- Mode of Inheritance
- BIALLELIC, autosomal or pseudoautosomal
- Sources
-
- Expert Review Green
- London North GLH
- NHS GMS
- South West GLH
- Emory Genetics Laboratory
- Phenotypes
-
- Hereditary Neuropathies
- Early onset ataxia and sensory axonal neuropathy similar to Friedreich ataxia, head titubation, normal fat absorption unlike abetalipoproteinaemia, rarely retinitis pigmentosa
- OMIM
- 600415
- Clinvar variants
- Variants in TTPA
- Penetrance
- Complete
- Panels with this gene
-
- Undiagnosed metabolic disorders
- Adult onset neurodegenerative disorder
- Intellectual disability
- Childhood onset dystonia, chorea or related movement disorder
- Likely inborn error of metabolism
- Hereditary ataxia with onset in adulthood
- Hereditary neuropathy
- Hereditary neuropathy or pain disorder
- Ataxia and cerebellar anomalies - narrow panel
- Retinal disorders
- Hereditary ataxia
History Filter Activity
Added New Source, Status Update
Louise Daugherty (Genomics England Curator)Source Expert Review Green was added to TTPA. Rating Changed from Red List (low evidence) to Green List (high evidence)
Added New Source
Louise Daugherty (Genomics England Curator)Source London North GLH was added to TTPA.
Set Phenotypes
Louise Daugherty (Genomics England Curator)Phenotypes for gene: TTPA were changed from Hereditary Neuropathies to Hereditary Neuropathies; Early onset ataxia and sensory axonal neuropathy similar to Friedreich ataxia, head titubation, normal fat absorption unlike abetalipoproteinaemia, rarely retinitis pigmentosa
Set mode of inheritance
Louise Daugherty (Genomics England Curator)Mode of inheritance for gene: TTPA was changed from to BIALLELIC, autosomal or pseudoautosomal
Set Phenotypes
Louise Daugherty (Genomics England Curator)Added phenotypes Hereditary Neuropathies for gene: TTPA
Added New Source
Louise Daugherty (Genomics England Curator)Source NHS GMS was added to TTPA.
Added New Source
Louise Daugherty (Genomics England Curator)Source South West GLH was added to TTPA.
Added New Source
Ellen McDonagh (Genomics England Curator)TTPA was added to Charcot-Marie-Tooth diseasepanel. Sources: Emory Genetics Laboratory