NM_000288.4(PEX7):c.319T>A (p.Tyr107Asn) AND Peroxisome biogenesis disorder 9B

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: May 28, 2022
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV003023246.2

Allele description [Variation Report for NM_000288.4(PEX7):c.319T>A (p.Tyr107Asn)]

NM_000288.4(PEX7):c.319T>A (p.Tyr107Asn)

Gene:

PEX7:peroxisomal biogenesis factor 7 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

6q23.3

Genomic location:

Preferred name:

NM_000288.4(PEX7):c.319T>A (p.Tyr107Asn)

HGVS:

NC_000006.12:g.136826449T>A
NG_008462.1:g.8870T>A
NM_000288.4:c.319T>AMANE SELECT
NM_001410945.1:c.205T>A
NP_000279.1:p.Tyr107Asn
NP_001397874.1:p.Tyr69Asn
NC_000006.11:g.137147587T>A

Protein change:

Y107N

Molecular consequence:

NM_000288.4:c.319T>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001410945.1:c.205T>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Peroxisome biogenesis disorder 9B
Synonyms:: PEROXISOME BIOGENESIS DISORDER, PEX7-RELATED, ATYPICAL; Refsum disease, adult, 2
Identifiers:: MONDO: MONDO:0013945; MedGen: C2749346; Orphanet: 773; OMIM: 614879

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003321403	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (May 28, 2022)	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

SCV003321403

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(May 28, 2022)

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

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV003321403.1

#	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 tyrosine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 107 of the PEX7 protein (p.Tyr107Asn). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with PEX7-related conditions. 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: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C15"). 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

Last Updated: Sep 29, 2024

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