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Hereditary neuropathy NOT PMP22 copy number

Gene: CYP27A1

Green List (high evidence)

CYP27A1 (cytochrome P450 family 27 subfamily A member 1)
EnsemblGeneIds (GRCh38): ENSG00000135929
EnsemblGeneIds (GRCh37): ENSG00000135929
OMIM: 606530, Gene2Phenotype
CYP27A1 is in 29 panels

2 reviews

Louise Daugherty (Genomics England Curator)

Green List (high evidence)

Gene rated Green : From feedback from Genomics England Clinical team (Anna de Burca). Although Extension of panel scope - syndrome with non-neurological features / Broader phenotype - cerebrotendinous xanthomatosis, it was noted that it was good to pick up early so advised Green rating over Amber for R57 panel
Created: 6 Dec 2019, 3:40 p.m. | Last Modified: 6 Dec 2019, 4:19 p.m.
Panel Version: 0.48
Comment on list classification: 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, 3:38 p.m. | Last Modified: 6 Dec 2019, 3:38 p.m.
Panel Version: 0.45
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
Cerebrotendinous Xanthomatosis. Adolescent-onset progressive ataxia, myelopathy and dementia, cataracts, low cholesterol, atherosclerosis, xanthomas, soft palate myoclonus, intractable infantile-onset diarrhoea, cerebral white matter lesions on MRI, sensory>motor axonal neuropathy, SNCV described in a minority of patients

Publications

History Filter Activity

6 Dec 2019, Gel status: 3

Entity classified by Genomics England curator

Louise Daugherty (Genomics England Curator)

Gene: cyp27a1 has been classified as Green List (High Evidence).

6 Dec 2019, Gel status: 2

Entity classified by Genomics England curator

Louise Daugherty (Genomics England Curator)

Gene: cyp27a1 has been classified as 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: CYP27A1 was added gene: CYP27A1 was added to Hereditary neuropathy NOT PMP22 copy number. Sources: NHS GMS,London North GLH Mode of inheritance for gene: CYP27A1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CYP27A1 were set to 22878431 Phenotypes for gene: CYP27A1 were set to SNCV described in a minority of patients; Adolescent-onset progressive ataxia, myelopathy and dementia, cataracts, low cholesterol, atherosclerosis, xanthomas, soft palate myoclonus, intractable infantile-onset diarrhoea, cerebral white matter lesions on MRI, sensory to motor axonal neuropathy; Cerebrotendinous xanthomatosis, 213700