NM_000455.5(STK11):c.612C>G (p.Phe204Leu) AND Peutz-Jeghers syndrome

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Aug 28, 2023
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV002555495.5

Allele description [Variation Report for NM_000455.5(STK11):c.612C>G (p.Phe204Leu)]

NM_000455.5(STK11):c.612C>G (p.Phe204Leu)

Gene:

STK11:serine/threonine kinase 11 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19p13.3

Genomic location:

Preferred name:

NM_000455.5(STK11):c.612C>G (p.Phe204Leu)

HGVS:

NC_000019.10:g.1220595C>G
NG_007460.2:g.36189C>G
NM_000455.5:c.612C>GMANE SELECT
NP_000446.1:p.Phe204Leu
LRG_319t1:c.612C>G
LRG_319:g.36189C>G
NC_000019.9:g.1220594C>G
NC_000019.9:g.1220594C>G
NM_000455.4:c.612C>G

Protein change:

F204L

Links:

dbSNP: rs774100153

NCBI 1000 Genomes Browser:

rs774100153

Molecular consequence:

NM_000455.5:c.612C>G - missense variant - [Sequence Ontology: SO:0001583]

Observations:

Condition(s)

Name:: Peutz-Jeghers syndrome (PJS)
Synonyms:: Polyposis, hamartomatous intestinal; Polyps-and-spots syndrome; Peutz-Jeghers polyposis; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0008280; MeSH: D010580; MedGen: C0031269; Orphanet: 2869; OMIM: 175200

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003523583	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Jun 17, 2023)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 28580595, 28492532
SCV004816383	All of Us Research Program, National Institutes of Health	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain Significance (Aug 28, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV003523583

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Jun 17, 2023)

germline

clinical testing

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

SCV004816383

All of Us Research Program, National Institutes of Health

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain Significance
(Aug 28, 2023)

germline

clinical testing

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

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	1	not provided	not provided	108544	not provided	clinical testing

Citations

PubMed

Mutation screening of 10 cancer susceptibility genes in unselected breast cancer patients.

Xie Y, Li G, Chen M, Guo X, Tang L, Luo X, Wang S, Yi W, Dai L, Wang J.

Clin Genet. 2018 Jan;93(1):41-51. doi: 10.1111/cge.13063. Epub 2017 Sep 25.

PubMed [citation]

PMID:: 28580595

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

See all PubMed Citations (3)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV003523583.2

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

Description

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. 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on STK11 protein function. ClinVar contains an entry for this variant (Variation ID: 920208). This missense change has been observed in individual(s) with breast cancer (PMID: 28580595). This variant is present in population databases (rs774100153, gnomAD 0.002%). This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 204 of the STK11 protein (p.Phe204Leu).

#	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

From All of Us Research Program, National Institutes of Health, SCV004816383.1

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

Description

This missense variant replaces phenylalanine with leucine at codon 204 of the STK11 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 2/207118 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is 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	108544	not provided	not provided		1	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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