rs374006397

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000455.5(STK11):​c.248A>G​(p.Lys83Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,459,710 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K83N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

1
4
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 8.82

Publications

1 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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25680053).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000455.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
STK11
NM_000455.5
MANE Select
c.248A>Gp.Lys83Arg
missense
Exon 1 of 10NP_000446.1
STK11
NM_001407255.1
c.248A>Gp.Lys83Arg
missense
Exon 1 of 9NP_001394184.1
STK11
NR_176325.1
n.1384A>G
non_coding_transcript_exon
Exon 1 of 11

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
STK11
ENST00000326873.12
TSL:1 MANE Select
c.248A>Gp.Lys83Arg
missense
Exon 1 of 10ENSP00000324856.6
STK11
ENST00000652231.1
c.248A>Gp.Lys83Arg
missense
Exon 1 of 9ENSP00000498804.1
STK11
ENST00000593219.6
TSL:3
n.248A>G
non_coding_transcript_exon
Exon 1 of 11ENSP00000466610.1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000413
AC:
1
AN:
242186
AF XY:
0.00000758
show subpopulations
Gnomad AFR exome
AF:
0.0000682
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:
0.00000206
AC:
3
AN:
1459710
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
725972
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33456
American (AMR)
AF:
0.00
AC:
0
AN:
44284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26020
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39676
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
85916
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53248
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111036
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60310
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
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.:
31
Alfa
AF:
0.0000267
Hom.:
0
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.000248
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000828
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:3
Jun 12, 2021
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

Aug 28, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.K83R variant (also known as c.248A>G), located in coding exon 1 of the STK11 gene, results from an A to G substitution at nucleotide position 248. The lysine at codon 83 is replaced by arginine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear.

Nov 16, 2023
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces lysine with arginine at codon 83 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 STK11-related disorders in the literature. This variant has been identified in 1/242186 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.

Peutz-Jeghers syndrome Uncertain:2Benign:1
Jul 15, 2021
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Sep 27, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Dec 13, 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 lysine with arginine at codon 83 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 STK11-related disorders in the literature. This variant has been identified in 1/242186 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.

Peutz-Jeghers syndrome;C1336708:Germ cell tumor of testis;C1835047:Melanoma, cutaneous malignant, susceptibility to, 1;C2931038:Familial pancreatic carcinoma Uncertain:1
Feb 14, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Uncertain:1
Jun 07, 2022
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 15863673)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.084
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
23
DANN
Benign
0.91
DEOGEN2
Benign
0.22
T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.13
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.26
T
MetaSVM
Benign
-0.51
T
MutationAssessor
Benign
0.060
N
PhyloP100
8.8
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
0.37
N
REVEL
Uncertain
0.30
Sift
Benign
0.76
T
Sift4G
Benign
0.73
T
Polyphen
0.0020
B
Vest4
0.38
MVP
0.78
MPC
0.82
ClinPred
0.22
T
GERP RS
3.9
PromoterAI
0.13
Neutral
Varity_R
0.19
gMVP
0.50
Mutation Taster
=57/43
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs374006397; hg19: chr19-1207160; API