NM_144997.7(FLCN):c.1126T>C (p.Trp376Arg) AND Birt-Hogg-Dube syndrome

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Nov 23, 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:: RCV003837949.3

Allele description [Variation Report for NM_144997.7(FLCN):c.1126T>C (p.Trp376Arg)]

NM_144997.7(FLCN):c.1126T>C (p.Trp376Arg)

Gene:

FLCN:folliculin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

17p11.2

Genomic location:

Preferred name:

NM_144997.7(FLCN):c.1126T>C (p.Trp376Arg)

HGVS:

NC_000017.11:g.17217119A>G
NG_008001.2:g.25070T>C
NM_001353229.2:c.1180T>C
NM_001353230.2:c.1126T>C
NM_001353231.2:c.1126T>C
NM_144997.7:c.1126T>CMANE SELECT
NP_001340158.1:p.Trp394Arg
NP_001340159.1:p.Trp376Arg
NP_001340160.1:p.Trp376Arg
NP_659434.2:p.Trp376Arg
NP_659434.2:p.Trp376Arg
LRG_325t1:c.1126T>C
LRG_325:g.25070T>C
LRG_325p1:p.Trp376Arg
NC_000017.10:g.17120433A>G
NM_144997.5:c.1126T>C

Protein change:

W376R

Molecular consequence:

NM_001353229.2:c.1180T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_001353230.2:c.1126T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_001353231.2:c.1126T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_144997.7:c.1126T>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Birt-Hogg-Dube syndrome
Synonyms:: BHD syndrome; Birt Hogg Dubé syndrome
Identifiers:: MONDO: MONDO:0800444; MedGen: C0346010; Orphanet: 122; OMIM: PS135150

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004632634	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Nov 23, 2023)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 31958439, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004632634

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Nov 23, 2023)

germline

clinical testing

PubMed (2)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Genetic Risk Factors for Spontaneous Pneumothorax in Birt-Hogg-Dubé Syndrome.

Sattler EC, Syunyaeva Z, Mansmann U, Steinlein OK.

Chest. 2020 May;157(5):1199-1206. doi: 10.1016/j.chest.2019.12.019. Epub 2020 Jan 17.

PubMed [citation]

PMID:: 31958439

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, SCV004632634.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

Description

This sequence change replaces tryptophan, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 376 of the FLCN protein (p.Trp376Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with Birt-Hogg-Dub√© syndrome (PMID: 31958439). 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 FLCN protein function with a negative predictive value of 80%. 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.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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