NM_000455.5(STK11):c.1027G>A (p.Asp343Asn) AND Peutz-Jeghers syndrome

Germline classification:: Uncertain significance (4 submissions)
Last evaluated:: Jan 30, 2024
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:: RCV000197027.21

Allele description [Variation Report for NM_000455.5(STK11):c.1027G>A (p.Asp343Asn)]

NM_000455.5(STK11):c.1027G>A (p.Asp343Asn)

Genes:

LOC130062899:ATAC-STARR-seq lymphoblastoid active region 13597 [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.1027G>A (p.Asp343Asn)

Other names:

p.D343N:GAC>AAC

HGVS:

NC_000019.10:g.1223091G>A
NG_007460.2:g.38685G>A
NM_000455.5:c.1027G>AMANE SELECT
NP_000446.1:p.Asp343Asn
NP_000446.1:p.Asp343Asn
LRG_319t1:c.1027G>A
LRG_319:g.38685G>A
LRG_319p1:p.Asp343Asn
NC_000019.9:g.1223090G>A
NM_000455.4:c.1027G>A
p.D343N

Protein change:

D343N

Links:

dbSNP: rs368547224

NCBI 1000 Genomes Browser:

rs368547224

Molecular consequence:

NM_000455.5:c.1027G>A - 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

Recent activity

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type 1 phosphatidylinositol 4,5-bisphosphate 4-phosphatase [Gadus morhua]
type 1 phosphatidylinositol 4,5-bisphosphate 4-phosphatase [Gadus morhua]
gi|1721921265|ref|XP_030219495.1|

Protein
hypothetical protein [Cupriavidus taiwanensis]
hypothetical protein [Cupriavidus taiwanensis]
gi|501324092|ref|WP_012355727.1|

Protein
Tssr134890 AND (alive[prop]) (0)
Gene

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000254535	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Jan 30, 2024)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 30287823, 28492532
SCV002057902	Genome-Nilou Lab	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Jul 15, 2021)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV002579035	MGZ Medical Genetics Center	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Jun 9, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV004818959	All of Us Research Program, National Institutes of Health	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain Significance (Jan 11, 2024)	germline	clinical testing	PubMed (5) [See all records that cite these PMIDs] 25742471, 26580448, 31214711, 33471991, 25741868

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Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	no	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	yes	1	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	20	not provided	not provided	108544	not provided	clinical testing

Citations

PubMed

Germline pathogenic variants of 11 breast cancer genes in 7,051 Japanese patients and 11,241 controls.

Momozawa Y, Iwasaki Y, Parsons MT, Kamatani Y, Takahashi A, Tamura C, Katagiri T, Yoshida T, Nakamura S, Sugano K, Miki Y, Hirata M, Matsuda K, Spurdle AB, Kubo M.

Nat Commun. 2018 Oct 4;9(1):4083. doi: 10.1038/s41467-018-06581-8.

PubMed [citation]

PMID:: 30287823
PMCID:: PMC6172276

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 (7)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000254535.13

#	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 aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 343 of the STK11 protein (p.Asp343Asn). This variant is present in population databases (rs368547224, gnomAD 0.004%). This missense change has been observed in individual(s) with breast cancer (PMID: 30287823). ClinVar contains an entry for this variant (Variation ID: 140986). 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 STK11 protein function with a negative predictive value of 95%. 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

From Genome-Nilou Lab, SCV002057902.1

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

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From MGZ Medical Genetics Center, SCV002579035.1

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

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

From All of Us Research Program, National Institutes of Health, SCV004818959.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	20	not provided	not provided	clinical testing	PubMed (5)

Description

This missense variant replaces aspartic acid with asparagine at codon 343 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 been observed in individuals affected with an unspecified cancer (PMID: 25742471), pediatric medulloblastoma (PMID: 26580448), prostate cancer (PMID: 31214711), and breast cancer (PMID: 31214711, 33471991), but also in unaffected controls (PMID: 33471991). This variant has also been reported in four individuals age 70 years or older without cancer (FLOSSIES database; https://whi.color.com/variant/19-1223090-G-A). This variant has been identified in 5/242452 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		20	not provided	not provided	not provided

Last Updated: Oct 20, 2024

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