NM_000784.4(CYP27A1):c.506C>T (p.Ala169Val) AND Cholestanol storage disease

Germline classification:: Benign/Likely benign (3 submissions)
Last evaluated:: Feb 1, 2024
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001082527.11

Allele description [Variation Report for NM_000784.4(CYP27A1):c.506C>T (p.Ala169Val)]

NM_000784.4(CYP27A1):c.506C>T (p.Ala169Val)

Gene:

CYP27A1:cytochrome P450 family 27 subfamily A member 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

2q35

Genomic location:

Preferred name:

NM_000784.4(CYP27A1):c.506C>T (p.Ala169Val)

HGVS:

NC_000002.12:g.218812281C>T
NG_007959.1:g.35533C>T
NM_000784.4:c.506C>TMANE SELECT
NP_000775.1:p.Ala169Val
NC_000002.11:g.219677004C>T
NM_000784.3:c.506C>T

Protein change:

A169V

Links:

dbSNP: rs59443548

NCBI 1000 Genomes Browser:

rs59443548

Molecular consequence:

NM_000784.4:c.506C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Cholestanol storage disease (CTX)
Synonyms:: Cerebral cholesterinosis; CTX: Cerebrotendinous xanthomatosis; Cerebrotendinous Xanthomatosis
Identifiers:: MONDO: MONDO:0008948; MedGen: C0238052; Orphanet: 909; OMIM: 213700

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001122641	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Benign (Feb 1, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001298550	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Likely benign (Apr 27, 2017)	germline	clinical testing	PubMed (1) [See all records that cite this PMID] Citation Link,
SCV002799979	Fulgent Genetics, Fulgent Genetics	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely benign (Oct 11, 2021)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001122641

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Benign
(Feb 1, 2024)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

SCV001298550

Illumina Laboratory Services, Illumina

criteria provided, single submitter

(ICSL Variant Classification Criteria 13 December 2019)

Likely benign
(Apr 27, 2017)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Citation Link,

SCV002799979

Fulgent Genetics, Fulgent Genetics

criteria provided, single submitter

(ACMG Guidelines, 2015)

Likely benign
(Oct 11, 2021)

unknown

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240-242.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Ethnic differences in the prevalence of polymorphisms in CYP7A1, CYP7B1 AND CYP27A1 enzymes involved in cholesterol metabolism.

Dias V, Ribeiro V.

J Pharm Bioallied Sci. 2011 Jul;3(3):453-9. doi: 10.4103/0975-7406.84465.

PubMed [citation]

PMID:: 21966169
PMCID:: PMC3178955

See all PubMed Citations (3)

Details of each submission

From Invitae, SCV001122641.5

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Illumina Laboratory Services, Illumina, SCV001298550.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Fulgent Genetics, Fulgent Genetics, SCV002799979.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Feb 28, 2024

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