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NM_001079802.2(FKTN):c.14A>G (p.Asn5Ser) AND Walker-Warburg congenital muscular dystrophy

Germline classification:
Uncertain significance (2 submissions)
Last evaluated:
Oct 18, 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:
RCV000687790.5

Allele description

NM_001079802.2(FKTN):c.14A>G (p.Asn5Ser)

Gene:
FKTN:fukutin [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
9q31.2
Genomic location:
Preferred name:
NM_001079802.2(FKTN):c.14A>G (p.Asn5Ser)
HGVS:
  • NC_000009.12:g.105575046A>G
  • NG_008754.1:g.21917A>G
  • NM_001079802.2:c.14A>GMANE SELECT
  • NM_001198963.2:c.14A>G
  • NM_001351496.2:c.14A>G
  • NM_001351497.2:c.-154A>G
  • NM_001351498.2:c.14A>G
  • NM_001351499.2:c.-501A>G
  • NM_001351500.2:c.-501A>G
  • NM_001351501.2:c.-501A>G
  • NM_001351502.2:c.-501A>G
  • NM_006731.2:c.14A>G
  • NP_001073270.1:p.Asn5Ser
  • NP_001073270.1:p.Asn5Ser
  • NP_001185892.1:p.Asn5Ser
  • NP_001338425.1:p.Asn5Ser
  • NP_001338427.1:p.Asn5Ser
  • NP_006722.2:p.Asn5Ser
  • LRG_434t1:c.14A>G
  • LRG_434t2:c.14A>G
  • LRG_434:g.21917A>G
  • LRG_434p1:p.Asn5Ser
  • LRG_434p2:p.Asn5Ser
  • NC_000009.11:g.108337327A>G
  • NM_001079802.1:c.14A>G
  • NR_147213.2:n.229A>G
  • NR_147214.2:n.137A>G
Protein change:
N5S
Links:
dbSNP: rs751473818
NCBI 1000 Genomes Browser:
rs751473818
Molecular consequence:
  • NM_001351497.2:c.-154A>G - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
  • NM_001351499.2:c.-501A>G - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
  • NM_001351500.2:c.-501A>G - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
  • NM_001351501.2:c.-501A>G - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
  • NM_001351502.2:c.-501A>G - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
  • NM_001079802.2:c.14A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001198963.2:c.14A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351496.2:c.14A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351498.2:c.14A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_006731.2:c.14A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NR_147213.2:n.229A>G - non-coding transcript variant - [Sequence Ontology: SO:0001619]
  • NR_147214.2:n.137A>G - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:
Walker-Warburg congenital muscular dystrophy
Synonyms:
Muscular dystrophy-dystroglycanopathy, type A; Walker-Warburg syndrome
Identifiers:
MONDO: MONDO:0000171; MedGen: C0265221; Orphanet: 899; OMIM: PS236670

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV000815376Invitae
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Oct 18, 2022) 		germlineclinical testing

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

SCV002078730Natera, Inc.
no assertion criteria provided
Uncertain significance
(Oct 28, 2019) 		germlineclinical testing

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 Invitae, SCV000815376.3

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

Description

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 5 of the FKTN protein (p.Asn5Ser). This variant is present in population databases (rs751473818, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with FKTN-related conditions. ClinVar contains an entry for this variant (Variation ID: 567644). 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 FKTN 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

From Natera, Inc., SCV002078730.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot provided
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: May 7, 2024