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NM_000492.4(CFTR):c.2042A>T (p.Glu681Val) AND not specified

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
May 5, 2023
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:
RCV001175035.10

Allele description [Variation Report for NM_000492.4(CFTR):c.2042A>T (p.Glu681Val)]

NM_000492.4(CFTR):c.2042A>T (p.Glu681Val)

Gene:
CFTR:CF transmembrane conductance regulator [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
7q31.2
Genomic location:
Preferred name:
NM_000492.4(CFTR):c.2042A>T (p.Glu681Val)
HGVS:
  • NC_000007.14:g.117592209A>T
  • NG_016465.4:g.131426A>T
  • NM_000492.4:c.2042A>TMANE SELECT
  • NP_000483.3:p.Glu681Val
  • NP_000483.3:p.Glu681Val
  • LRG_663t1:c.2042A>T
  • LRG_663:g.131426A>T
  • LRG_663p1:p.Glu681Val
  • NC_000007.13:g.117232263A>T
  • NM_000492.3:c.2042A>T
  • NM_000492.4:c.2042A>T
Protein change:
E681V
Links:
dbSNP: rs201295415
NCBI 1000 Genomes Browser:
rs201295415
Molecular consequence:
  • NM_000492.4:c.2042A>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Synonyms:
AllHighlyPenetrant
Identifiers:
MedGen: CN169374

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV001338553Women's Health and Genetics/Laboratory Corporation of America, LabCorp
criteria provided, single submitter

(LabCorp Variant Classification Summary - May 2015)
Uncertain significance
(May 5, 2023)
germlineclinical testing

PubMed (5)
[See all records that cite these PMIDs]

Citation Link

Summary from all submissions

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

Citations

PubMed

Association of CFTR gene variants with nontuberculous mycobacterial lung disease in a Korean population with a low prevalence of cystic fibrosis.

Jang MA, Kim SY, Jeong BH, Park HY, Jeon K, Kim JW, Ki CS, Koh WJ.

J Hum Genet. 2013 May;58(5):298-303. doi: 10.1038/jhg.2013.19. Epub 2013 Mar 21.

PubMed [citation]
PMID:
23514810

Targeted Gene Next-Generation Sequencing in Chinese Children with Chronic Pancreatitis and Acute Recurrent Pancreatitis.

Xiao Y, Yuan W, Yu B, Guo Y, Xu X, Wang X, Yu Y, Yu Y, Gong B, Xu C.

J Pediatr. 2017 Dec;191:158-163.e3. doi: 10.1016/j.jpeds.2017.08.063.

PubMed [citation]
PMID:
29173301
See all PubMed Citations (5)

Details of each submission

From Women's Health and Genetics/Laboratory Corporation of America, LabCorp, SCV001338553.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (5)

Description

Variant summary: CFTR c.2042A>T (p.Glu681Val) results in a non-conservative amino acid change located in the CFTR regulator domain (IPR025837) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00014 in 249118 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in CFTR causing Cystic Fibrosis (0.00014 vs 0.013), allowing no conclusion about variant significance. c.2042A>T has been reported in the literature in individuals affected with Nontuberculous mycobacteria (NTM) infection, pancreatitits and CBAVD (Congenital bilateral absence of the vas deferens) (example, Colombo_2009, Jang_2013, Xiao_2017, Yuan_2019, Guan_2018). These reports however, do not provide unequivocal conclusions about association of the variant with Cystic Fibrosis. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 19858235, 29997923, 23514810, 29173301, 30811104). Six ClinVar submitters (evaluation after 2014) cite the variant as uncertain significance and one as likely benign (n=1). Based on the evidence outlined above, the variant was classified as uncertain significance.

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

Last Updated: Oct 26, 2024