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NM_013382.7(POMT2):c.1274G>C (p.Ser425Thr) AND multiple conditions

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jan 2, 2024
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:
RCV000821894.7

Allele description [Variation Report for NM_013382.7(POMT2):c.1274G>C (p.Ser425Thr)]

NM_013382.7(POMT2):c.1274G>C (p.Ser425Thr)

Gene:
POMT2:protein O-mannosyltransferase 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
14q24.3
Genomic location:
Preferred name:
NM_013382.7(POMT2):c.1274G>C (p.Ser425Thr)
HGVS:
  • NC_000014.9:g.77286802C>G
  • NG_008897.1:g.39081G>C
  • NM_013382.7:c.1274G>CMANE SELECT
  • NP_037514.2:p.Ser425Thr
  • NP_037514.2:p.Ser425Thr
  • LRG_844t1:c.1274G>C
  • LRG_844:g.39081G>C
  • LRG_844p1:p.Ser425Thr
  • NC_000014.8:g.77753145C>G
  • NM_013382.5:c.1274G>C
Protein change:
S425T
Links:
dbSNP: rs774466835
NCBI 1000 Genomes Browser:
rs774466835
Molecular consequence:
  • NM_013382.7:c.1274G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A2
Synonyms:
MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY (CONGENITAL WITH BRAIN AND EYE ANOMALIES), TYPE A, 2; WALKER-WARBURG SYNDROME OR MUSCLE-EYE-BRAIN DISEASE, POMT2-RELATED; Congenital muscular dystrophy-dystroglycanopathy with brain and eye anomalies, type A2
Identifiers:
MONDO: MONDO:0013154; MedGen: C3150411; Orphanet: 588; Orphanet: 899; OMIM: 613150
Name:
Muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B2 (MDDGB2)
Synonyms:
MUSCULAR DYSTROPHY, CONGENITAL, POMT2-RELATED; MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY (CONGENITAL WITH IMPAIRED INTELLECTUAL DEVELOPMENT), TYPE B, 2
Identifiers:
MONDO: MONDO:0013160; MedGen: C3150416; OMIM: 613156
Name:
Autosomal recessive limb-girdle muscular dystrophy type 2N
Synonyms:
MUSCULAR DYSTROPHY-DYSTROGLYCANOPATHY, LIMB-GIRDLE, POMT2-RELATED; Limb-girdle muscular dystrophy-dystroglycanopathy, type C2; Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 2
Identifiers:
MONDO: MONDO:0013162; MedGen: C3150418; Orphanet: 206559; OMIM: 613158

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV000962668Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Jan 2, 2024) 		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, SCV000962668.6

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

Description

This sequence change replaces serine, which is neutral and polar, with threonine, which is neutral and polar, at codon 425 of the POMT2 protein (p.Ser425Thr). This variant is present in population databases (rs774466835, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with POMT2-related conditions. ClinVar contains an entry for this variant (Variation ID: 663918). 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 POMT2 protein function with a negative predictive value of 80%. 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