NM_000441.2(SLC26A4):c.754T>C (p.Ser252Pro) AND not provided

Clinical significance:Pathogenic (Last evaluated: Mar 26, 2020)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
1 submission [Details]
Record status:

Allele description [Variation Report for NM_000441.2(SLC26A4):c.754T>C (p.Ser252Pro)]

NM_000441.2(SLC26A4):c.754T>C (p.Ser252Pro)

SLC26A4:solute carrier family 26 member 4 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
Genomic location:
Preferred name:
NM_000441.2(SLC26A4):c.754T>C (p.Ser252Pro)
  • NC_000007.14:g.107675098T>C
  • NG_008489.1:g.19464T>C
  • NM_000441.2:c.754T>CMANE SELECT
  • NP_000432.1:p.Ser252Pro
  • NC_000007.13:g.107315543T>C
Protein change:
Molecular consequence:
  • NM_000441.2:c.754T>C - missense variant - [Sequence Ontology: SO:0001583]


MedGen: CN517202

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
SCV001579940Invitaecriteria provided, single submitter
(Mar 26, 2020)
germlineclinical testing

PubMed (9)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing



Extremely discrepant mutation spectrum of SLC26A4 between Chinese patients with isolated Mondini deformity and enlarged vestibular aqueduct.

Huang S, Han D, Yuan Y, Wang G, Kang D, Zhang X, Yan X, Meng X, Dong M, Dai P.

J Transl Med. 2011 Sep 30;9:167. doi: 10.1186/1479-5876-9-167.

PubMed [citation]

Molecular etiology of hearing impairment associated with nonsyndromic enlarged vestibular aqueduct in East China.

Chai Y, Huang Z, Tao Z, Li X, Li L, Li Y, Wu H, Yang T.

Am J Med Genet A. 2013 Sep;161A(9):2226-33. doi: 10.1002/ajmg.a.36068. Epub 2013 Aug 5.

PubMed [citation]
See all PubMed Citations (9)

Details of each submission

From Invitae, SCV001579940.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (9)


This sequence change replaces serine with proline at codon 252 of the SLC26A4 protein (p.Ser252Pro). The serine residue is highly conserved and there is a moderate physicochemical difference between serine and proline. This variant is not present in population databases (ExAC no frequency). This variant has been observed in individual(s) with SLC26A4-related conditions (PMID: 21961810, 23918157, 24612839, 24341454, 26252218, 20842945, 12676893, 22796198). In at least one individual the data is consistent with the variant being in trans (on the opposite chromosome) from a pathogenic variant. 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: Probably Damaging; Align-GVGD: Class C0). For these reasons, this variant has been classified as Pathogenic.

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

Last Updated: Oct 8, 2021

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