rs398123405

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BP6BS2

The NM_000455.5(STK11):​c.877G>A​(p.Glu293Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000425 in 1,410,818 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E293Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000043 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

1
10
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 7.27

Publications

3 publications found
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]
STK11 Gene-Disease associations (from GenCC):
  • familial pancreatic carcinoma
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • Peutz-Jeghers syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, Genomics England PanelApp, G2P
  • familial ovarian cancer
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM1
In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 30 uncertain in NM_000455.5
BP6
Variant 19-1221963-G-A is Benign according to our data. Variant chr19-1221963-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 142641.
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STK11NM_000455.5 linkc.877G>A p.Glu293Lys missense_variant Exon 7 of 10 ENST00000326873.12 NP_000446.1 Q15831-1A0A0S2Z4D1
STK11NM_001407255.1 linkc.877G>A p.Glu293Lys missense_variant Exon 7 of 9 NP_001394184.1
STK11NR_176325.1 linkn.2144G>A non_coding_transcript_exon_variant Exon 8 of 11

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STK11ENST00000326873.12 linkc.877G>A p.Glu293Lys missense_variant Exon 7 of 10 1 NM_000455.5 ENSP00000324856.6 Q15831-1
STK11ENST00000652231.1 linkc.877G>A p.Glu293Lys missense_variant Exon 7 of 9 ENSP00000498804.1 Q15831-2
STK11ENST00000585748.3 linkc.505G>A p.Glu169Lys missense_variant Exon 9 of 12 3 ENSP00000477641.2 A0A087WT72
STK11ENST00000593219.6 linkn.*702G>A non_coding_transcript_exon_variant Exon 8 of 11 3 ENSP00000466610.1 K7EMR0
STK11ENST00000593219.6 linkn.*702G>A 3_prime_UTR_variant Exon 8 of 11 3 ENSP00000466610.1 K7EMR0

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD2 exomes
AF:
0.0000116
AC:
2
AN:
172130
AF XY:
0.0000217
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000425
AC:
6
AN:
1410818
Hom.:
0
Cov.:
30
AF XY:
0.00000717
AC XY:
5
AN XY:
697290
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32022
American (AMR)
AF:
0.00
AC:
0
AN:
37620
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25340
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36450
South Asian (SAS)
AF:
0.0000250
AC:
2
AN:
80000
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5702
European-Non Finnish (NFE)
AF:
0.00000368
AC:
4
AN:
1086606
Other (OTH)
AF:
0.00
AC:
0
AN:
58464
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
34
ExAC
AF:
0.00000868
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome Uncertain:4
Jun 28, 2023
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 glutamic acid with lysine at codon 293 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). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 2/172130 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

- -

Dec 04, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 293 of the STK11 protein (p.Glu293Lys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individual(s) with breast cancer (PMID: 35264596). ClinVar contains an entry for this variant (Variation ID: 142641). Invitae Evidence 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 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. 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. -

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

- -

Hereditary cancer-predisposing syndrome Benign:2
Jan 28, 2025
Color Diagnostics, LLC DBA Color Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 12, 2023
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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Uncertain
0.063
T
BayesDel_noAF
Benign
-0.15
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.33
T;T
Eigen
Benign
-0.075
Eigen_PC
Benign
0.0090
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Uncertain
0.52
D;D
MetaSVM
Benign
-0.34
T
MutationAssessor
Benign
1.0
.;L
PhyloP100
7.3
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-2.4
.;N
REVEL
Uncertain
0.46
Sift
Uncertain
0.0040
.;D
Sift4G
Uncertain
0.012
D;D
Polyphen
0.22
.;B
Vest4
0.52
MutPred
0.60
Gain of MoRF binding (P = 0.0089);Gain of MoRF binding (P = 0.0089);
MVP
0.63
MPC
0.046
ClinPred
0.67
D
GERP RS
3.6
Varity_R
0.49
gMVP
0.59
Mutation Taster
=64/36
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs398123405; hg19: chr19-1221962; API