NM_000387.6(SLC25A20):c.226G>C (p.Ala76Pro) AND Carnitine acylcarnitine translocase deficiency

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Aug 20, 2022
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:: RCV000807267.7

Allele description [Variation Report for NM_000387.6(SLC25A20):c.226G>C (p.Ala76Pro)]

NM_000387.6(SLC25A20):c.226G>C (p.Ala76Pro)

Gene:

SLC25A20:solute carrier family 25 member 20 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

3p21.31

Genomic location:

Preferred name:

NM_000387.6(SLC25A20):c.226G>C (p.Ala76Pro)

HGVS:

NC_000003.12:g.48884097C>G
NG_008171.1:g.19800G>C
NM_000387.6:c.226G>CMANE SELECT
NP_000378.1:p.Ala76Pro
NC_000003.11:g.48921530C>G
p.Ala76Pro
NM_000387.5:c.226G>C

Protein change:

A76P

Links:

dbSNP: rs150516570

NCBI 1000 Genomes Browser:

rs150516570

Molecular consequence:

NM_000387.6:c.226G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Carnitine acylcarnitine translocase deficiency (CACTD)
Identifiers:: MONDO: MONDO:0008918; MedGen: C0342791; Orphanet: 159; OMIM: 212138

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000947311	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Aug 20, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV003823372	Revvity Omics, Revvity	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 13, 2020)	germline	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

SCV000947311

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Aug 20, 2022)

germline

clinical testing

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

SCV003823372

Revvity Omics, Revvity

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Mar 13, 2020)

germline

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

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. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee.

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000947311.2

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

Description

This sequence change replaces alanine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 76 of the SLC25A20 protein (p.Ala76Pro). This variant is present in population databases (rs150516570, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with SLC25A20-related conditions. ClinVar contains an entry for this variant (Variation ID: 651841). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	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 Revvity Omics, Revvity, SCV003823372.2

#	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

Last Updated: Oct 20, 2024

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