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NM_000492.4(CFTR):c.407T>C (p.Leu136Pro) AND Cystic fibrosis

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Aug 24, 2021
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:
RCV001047415.7

Allele description [Variation Report for NM_000492.4(CFTR):c.407T>C (p.Leu136Pro)]

NM_000492.4(CFTR):c.407T>C (p.Leu136Pro)

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.407T>C (p.Leu136Pro)
HGVS:
  • NC_000007.14:g.117531032T>C
  • NG_016465.4:g.70249T>C
  • NM_000492.4:c.407T>CMANE SELECT
  • NP_000483.3:p.Leu136Pro
  • LRG_663t1:c.407T>C
  • LRG_663:g.70249T>C
  • NC_000007.13:g.117171086T>C
  • NM_000492.3:c.407T>C
Protein change:
L136P
Links:
dbSNP: rs1798854681
NCBI 1000 Genomes Browser:
rs1798854681
Molecular consequence:
  • NM_000492.4:c.407T>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Cystic fibrosis (CF)
Synonyms:
Mucoviscidosis
Identifiers:
MONDO: MONDO:0009061; MedGen: C0010674; Orphanet: 586; OMIM: 219700

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV001211373Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))
Uncertain significance
(Aug 24, 2021)
germlineclinical testing

PubMed (3)
[See all records that cite these PMIDs]

Summary from all submissions

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

Citations

PubMed

Novel CFTR variants identified during the first 3 years of cystic fibrosis newborn screening in California.

Prach L, Koepke R, Kharrazi M, Keiles S, Salinas DB, Reyes MC, Pian M, Opsimos H, Otsuka KN, Hardy KA, Milla CE, Zirbes JM, Chipps B, O'Bra S, Saeed MM, Sudhakar R, Lehto S, Nielson D, Shay GF, Seastrand M, Jhawar S, Nickerson B, et al.

J Mol Diagn. 2013 Sep;15(5):710-22. doi: 10.1016/j.jmoldx.2013.05.006. Epub 2013 Jun 28.

PubMed [citation]
PMID:
23810505
PMCID:
PMC5707181
See all PubMed Citations (3)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001211373.4

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (3)

Description

This sequence change replaces leucine with proline at codon 136 of the CFTR protein (p.Leu136Pro). The leucine residue is moderately conserved and there is a moderate physicochemical difference between leucine and proline. This variant is not present in population databases (ExAC no frequency). This missense change has been observed in individuals with cystic fibrosis (PMID: 11119745, 23810505). 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: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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

Last Updated: Sep 29, 2024