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NM_000466.3(PEX1):c.1916A>T (p.Asn639Ile) AND Zellweger spectrum disorders

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Oct 14, 2021
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:
RCV001981268.5

Allele description [Variation Report for NM_000466.3(PEX1):c.1916A>T (p.Asn639Ile)]

NM_000466.3(PEX1):c.1916A>T (p.Asn639Ile)

Gene:
PEX1:peroxisomal biogenesis factor 1 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
7q21.2
Genomic location:
Preferred name:
NM_000466.3(PEX1):c.1916A>T (p.Asn639Ile)
HGVS:
  • NC_000007.14:g.92504887T>A
  • NG_008341.2:g.28645A>T
  • NM_000466.3:c.1916A>TMANE SELECT
  • NM_001282677.2:c.1900+1361A>T
  • NM_001282678.2:c.1292A>T
  • NP_000457.1:p.Asn639Ile
  • NP_001269607.1:p.Asn431Ile
  • NC_000007.13:g.92134201T>A
Protein change:
N431I
Links:
dbSNP: rs200438144
NCBI 1000 Genomes Browser:
rs200438144
Molecular consequence:
  • NM_001282677.2:c.1900+1361A>T - intron variant - [Sequence Ontology: SO:0001627]
  • NM_000466.3:c.1916A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001282678.2:c.1292A>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Zellweger spectrum disorders (ZS)
Synonyms:
Zellweger syndrome; Zellweger Spectrum Disorder; Zellweger Spectrum
Identifiers:
MONDO: MONDO:0019609; MedGen: C0043459; Orphanet: 912

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV002286623Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Oct 14, 2021) 		germlineclinical testing

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

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical 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, SCV002286623.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)

Description

This sequence change replaces asparagine with isoleucine at codon 639 of the PEX1 protein (p.Asn639Ile). The asparagine residue is weakly conserved and there is a large physicochemical difference between asparagine and isoleucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with PEX1-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PEX1 protein function. 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024