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NM_001079802.2(FKTN):c.556C>T (p.His186Tyr) AND Walker-Warburg congenital muscular dystrophy

Germline classification:
Uncertain significance (2 submissions)
Last evaluated:
Aug 16, 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:
RCV000799891.5

Allele description [Variation Report for NM_001079802.2(FKTN):c.556C>T (p.His186Tyr)]

NM_001079802.2(FKTN):c.556C>T (p.His186Tyr)

Gene:
FKTN:fukutin [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
9q31.2
Genomic location:
Preferred name:
NM_001079802.2(FKTN):c.556C>T (p.His186Tyr)
HGVS:
  • NC_000009.12:g.105604401C>T
  • NG_008754.1:g.51272C>T
  • NM_001079802.2:c.556C>TMANE SELECT
  • NM_001198963.2:c.556C>T
  • NM_001351496.2:c.556C>T
  • NM_001351497.2:c.487C>T
  • NM_001351498.2:c.556C>T
  • NM_001351499.2:c.160C>T
  • NM_001351500.2:c.160C>T
  • NM_001351501.2:c.160C>T
  • NM_001351502.2:c.160C>T
  • NM_006731.2:c.556C>T
  • NP_001073270.1:p.His186Tyr
  • NP_001073270.1:p.His186Tyr
  • NP_001185892.1:p.His186Tyr
  • NP_001338425.1:p.His186Tyr
  • NP_001338426.1:p.His163Tyr
  • NP_001338427.1:p.His186Tyr
  • NP_001338428.1:p.His54Tyr
  • NP_001338429.1:p.His54Tyr
  • NP_001338430.1:p.His54Tyr
  • NP_001338431.1:p.His54Tyr
  • NP_006722.2:p.His186Tyr
  • LRG_434t1:c.556C>T
  • LRG_434t2:c.556C>T
  • LRG_434:g.51272C>T
  • LRG_434p1:p.His186Tyr
  • LRG_434p2:p.His186Tyr
  • NC_000009.11:g.108366682C>T
  • NM_001079802.1:c.556C>T
  • NR_147213.2:n.771C>T
  • NR_147214.2:n.679C>T
Protein change:
H163Y
Links:
dbSNP: rs767961629
NCBI 1000 Genomes Browser:
rs767961629
Molecular consequence:
  • NM_001079802.2:c.556C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001198963.2:c.556C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351496.2:c.556C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351497.2:c.487C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351498.2:c.556C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351499.2:c.160C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351500.2:c.160C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351501.2:c.160C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001351502.2:c.160C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_006731.2:c.556C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NR_147213.2:n.771C>T - non-coding transcript variant - [Sequence Ontology: SO:0001619]
  • NR_147214.2:n.679C>T - 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
SCV000939574Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Aug 16, 2022) 		germlineclinical testing

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

SCV002079579Natera, Inc.
no assertion criteria provided
Uncertain significance
(Apr 1, 2020) 		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 Labcorp Genetics (formerly Invitae), Labcorp, SCV000939574.2

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

Description

This sequence change replaces histidine, which is basic and polar, with tyrosine, which is neutral and polar, at codon 186 of the FKTN protein (p.His186Tyr). This variant is present in population databases (rs767961629, gnomAD 0.02%). 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: 645742). 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: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C15"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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., SCV002079579.1

#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: Sep 29, 2024