NM_000512.5(GALNS):c.884C>T (p.Ser295Phe) AND Mucopolysaccharidosis, MPS-IV-A

Germline classification:
Pathogenic/Likely pathogenic (3 submissions)
Last evaluated:
Jan 22, 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:
RCV001235768.14

Allele description [Variation Report for NM_000512.5(GALNS):c.884C>T (p.Ser295Phe)]

NM_000512.5(GALNS):c.884C>T (p.Ser295Phe)

Gene:
GALNS:galactosamine (N-acetyl)-6-sulfatase [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
16q24.3
Genomic location:
Preferred name:
NM_000512.5(GALNS):c.884C>T (p.Ser295Phe)
HGVS:
  • NC_000016.10:g.88835227G>A
  • NG_008667.1:g.26740C>T
  • NM_000512.5:c.884C>TMANE SELECT
  • NM_001323543.2:c.329C>T
  • NM_001323544.2:c.902C>T
  • NP_000503.1:p.Ser295Phe
  • NP_001310472.1:p.Ser110Phe
  • NP_001310473.1:p.Ser301Phe
  • NC_000016.9:g.88901635G>A
  • NM_000512.4:c.884C>T
Protein change:
S110F
Links:
dbSNP: rs149239881
NCBI 1000 Genomes Browser:
rs149239881
Molecular consequence:
  • NM_000512.5:c.884C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001323543.2:c.329C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001323544.2:c.902C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Mucopolysaccharidosis, MPS-IV-A (MPS4A)
Synonyms:
MPS IVA; Morquio syndrome A; MPS 4A; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0009659; MedGen: C0086651; Orphanet: 309297; Orphanet: 582; OMIM: 253000

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV001408473Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))
Pathogenic
(Jan 22, 2024)
germlineclinical testing

PubMed (4)
[See all records that cite these PMIDs]

SCV001547821Laboratory of Diagnosis and Therapy of Lysosomal Disorders, University of Padova
criteria provided, single submitter

(ACMG Guidelines, 2015)
Likely pathogenic
(Feb 1, 2021)
germlineresearch

PubMed (6)
[See all records that cite these PMIDs]

SCV002044947Genome-Nilou Lab
criteria provided, single submitter

(ACMG Guidelines, 2015)
Likely pathogenic
(Nov 7, 2021)
germlineclinical testing

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

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineyesnot providednot providednot providednot providednot providedresearch
not providedgermlinenonot providednot providednot providednot providednot providedclinical testing
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

Mucopolysaccharidosis IVA: identification of mutations and methylation study in GALNS gene.

Tomatsu S, Nishioka T, MontaƱo AM, Gutierrez MA, Pena OS, Orii KO, Sly WS, Yamaguchi S, Orii T, Paschke E, Kircher SG, Noguchi A.

J Med Genet. 2004 Jul;41(7):e98. No abstract available.

PubMed [citation]
PMID:
15235041
PMCID:
PMC1735846
See all PubMed Citations (7)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001408473.5

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (4)

Description

This sequence change replaces serine, which is neutral and polar, with phenylalanine, which is neutral and non-polar, at codon 295 of the GALNS protein (p.Ser295Phe). This variant is present in population databases (rs149239881, gnomAD 0.007%). This missense change has been observed in individuals with mucopolysaccharidosis type IVA (PMID: 9298823, 15235041, 27331011; Invitae). ClinVar contains an entry for this variant (Variation ID: 520617). 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 expected to disrupt GALNS protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic.

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

From Laboratory of Diagnosis and Therapy of Lysosomal Disorders, University of Padova, SCV001547821.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedresearch PubMed (6)

Description

The prevalence of the variant in affected individuals is significantly increased compared with the prevalence in controls (PS4_strong); very low frequency in gnomAD v2.1.1 (PM2_moderate)

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

From Genome-Nilou Lab, SCV002044947.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlinenonot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024