rs730881981

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM1BP4BP6BS2

The NM_000455.5(STK11):​c.613G>A​(p.Ala205Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,589,878 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

1
5
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:2

Conservation

PhyloP100: 9.86
Variant links:
Genes affected
STK11 (HGNC:11389): (serine/threonine kinase 11) The protein encoded by this gene is a serine/threonine kinase that regulates cell polarity and energy metabolism and functions as a tumor suppressor. Mutations in this gene have been associated with the autosomal dominant Peutz-Jeghers syndrome, as well as with skin, pancreatic, and testicular cancers. [provided by RefSeq, May 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM1
In a domain Protein kinase (size 260) in uniprot entity STK11_HUMAN there are 19 pathogenic changes around while only 5 benign (79%) in NM_000455.5
BP4
Computational evidence support a benign effect (MetaRNN=0.3797617).
BP6
Variant 19-1220596-G-A is Benign according to our data. Variant chr19-1220596-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 182909.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=10}.
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STK11NM_000455.5 linkc.613G>A p.Ala205Thr missense_variant Exon 5 of 10 ENST00000326873.12 NP_000446.1 Q15831-1A0A0S2Z4D1
STK11NM_001407255.1 linkc.613G>A p.Ala205Thr missense_variant Exon 5 of 9 NP_001394184.1
STK11NR_176325.1 linkn.1880G>A non_coding_transcript_exon_variant Exon 6 of 11

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STK11ENST00000326873.12 linkc.613G>A p.Ala205Thr missense_variant Exon 5 of 10 1 NM_000455.5 ENSP00000324856.6 Q15831-1
STK11ENST00000652231.1 linkc.613G>A p.Ala205Thr missense_variant Exon 5 of 9 ENSP00000498804.1 Q15831-2
STK11ENST00000585748.3 linkc.241G>A p.Ala81Thr missense_variant Exon 7 of 12 3 ENSP00000477641.2 A0A087WT72

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152176
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000477
AC:
1
AN:
209624
Hom.:
0
AF XY:
0.00000868
AC XY:
1
AN XY:
115212
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000363
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000132
AC:
19
AN:
1437702
Hom.:
0
Cov.:
32
AF XY:
0.0000112
AC XY:
8
AN XY:
712894
show subpopulations
Gnomad4 AFR exome
AF:
0.0000304
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000119
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000155
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152176
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ExAC
AF:
0.00000844
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:10Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome Uncertain:5Benign:1
Apr 13, 2023
Myriad Genetics, Inc.
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -

Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 27, 2024
All of Us Research Program, National Institutes of Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This missense variant replaces alanine with threonine at codon 205 of the STK11 protein. Computational prediction tool 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. A functional study has shown that this variant results in significant decrease of kinase activity and ability to suppress cell growth (PMID: 16407837). This variant has been reported in an individual affected with breast cancer (PMID: 25452441). This variant has been identified in 1/209624 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. -

Jul 02, 2018
Mendelics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 03, 2017
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 15, 2021
Genome-Nilou Lab
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
Nov 13, 2023
Color Diagnostics, LLC DBA Color Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This missense variant replaces alanine with threonine at codon 205 of the STK11 protein. Computational prediction tool suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). A functional study in a head and neck squamous cell carcinoma cell line has shown that this variant results in significant decrease of kinase activity and ability to suppress cell growth compared to wild type protein (PMID: 16407837). This variant has been reported in an individual affected with breast cancer (PMID: 25452441). This variant has been identified in 1/209624 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. -

Jul 12, 2017
Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 20, 2020
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not specified Uncertain:1
Nov 08, 2016
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is denoted STK11 c.613G>A at the cDNA level, p.Ala205Thr (A205T) at the protein level, and results in the change of an Alanine to a Threonine (GCG>ACG). This variant was observed in at least one woman with triple negative breast cancer (Couch 2015). In a functional study on a head/neck squamous cell carcinoma cell line, this variant impaired the ability of STK11 to suppress cell growth and to decrease kinase activity (Qui 2006). STK11 Ala205Thr was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. Since Alanine and Threonine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. STK11 Ala205Thr occurs at a position that is conserved across species and is located in the protein kinase domain (Hearle 2006). In silico analyses are inconsistent regarding the effect this variant may have on protein structure and function. Based on currently available information, it is unclear whether STK11 Ala205Thr is pathogenic or benign. We consider it to be a variant of uncertain significance. -

not provided Uncertain:1
Jan 18, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The STK11 c.613G>A (p.Ala205Thr) variant has been reported in the published literature in in individuals with breast cancer (PMID: 25452441 (2015), 33471991 (2021), 35264596 (2022), see also LOVD (http://databases.lovd.nl/shared/genes/STK11)) and gastric cancer (PMID: 34326862 (2021)). Experimental evidence regarding the effect of this variant on protein function is conflicting (PMID: 16407837 (2006), 19892943 (2009)). The frequency of this variant in the general population, 0.0000048 (1/209624 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded conflicting predictions that this variant is benign or damaging. Based on the available information, we are unable to determine the clinical significance of this variant. -

Melanoma, cutaneous malignant, susceptibility to, 1 Uncertain:1
Jun 20, 2023
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Uncertain
0.099
D
BayesDel_noAF
Benign
-0.10
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.31
T;T;T
Eigen
Benign
-0.00086
Eigen_PC
Benign
0.060
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Benign
0.38
T;T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.36
.;N;.
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-2.1
.;N;.
REVEL
Benign
0.24
Sift
Benign
0.27
.;T;.
Sift4G
Benign
0.27
T;T;T
Polyphen
0.69
.;P;.
Vest4
0.77
MVP
0.71
MPC
1.4
ClinPred
0.36
T
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.22
gMVP
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs730881981; hg19: chr19-1220595; COSMIC: COSV58824180; COSMIC: COSV58824180; API