NM_000455.5:c.1157T>G

Variant summary

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

The NM_000455.5(STK11):​c.1157T>G​(p.Leu386Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,458,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L386I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.07

Publications

0 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=0.22742581).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STK11NM_000455.5 linkc.1157T>G p.Leu386Arg missense_variant Exon 9 of 10 ENST00000326873.12 NP_000446.1 Q15831-1A0A0S2Z4D1
STK11NR_176325.1 linkn.2424T>G non_coding_transcript_exon_variant Exon 10 of 11

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STK11ENST00000326873.12 linkc.1157T>G p.Leu386Arg missense_variant Exon 9 of 10 1 NM_000455.5 ENSP00000324856.6 Q15831-1
STK11ENST00000585748.3 linkc.785T>G p.Leu262Arg missense_variant Exon 11 of 12 3 ENSP00000477641.2 A0A087WT72
STK11ENST00000593219.6 linkn.*982T>G non_coding_transcript_exon_variant Exon 10 of 11 3 ENSP00000466610.1 K7EMR0
STK11ENST00000593219.6 linkn.*982T>G 3_prime_UTR_variant Exon 10 of 11 3 ENSP00000466610.1 K7EMR0

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1458648
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
725484
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33442
American (AMR)
AF:
0.00
AC:
0
AN:
44550
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26020
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39662
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85946
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51904
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5722
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111200
Other (OTH)
AF:
0.00
AC:
0
AN:
60202
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
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.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome Uncertain:2
Apr 30, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 386 of the STK11 protein (p.Leu386Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with STK11-related conditions. ClinVar contains an entry for this variant (Variation ID: 230965). 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. -

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

- -

Hereditary cancer-predisposing syndrome Uncertain:1
May 29, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.L386R variant (also known as c.1157T>G), located in coding exon 9 of the STK11 gene, results from a T to G substitution at nucleotide position 1157. The leucine at codon 386 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.054
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.29
T;T
Eigen
Benign
-0.51
Eigen_PC
Benign
-0.45
FATHMM_MKL
Benign
0.64
D
LIST_S2
Benign
0.75
T;T
M_CAP
Benign
0.074
D
MetaRNN
Benign
0.23
T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
1.6
.;L
PhyloP100
2.1
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.39
.;N
REVEL
Benign
0.089
Sift
Benign
0.55
.;T
Sift4G
Benign
0.63
T;T
Polyphen
0.013
.;B
Vest4
0.46
MutPred
0.40
Gain of MoRF binding (P = 0.017);Gain of MoRF binding (P = 0.017);
MVP
0.37
MPC
0.067
ClinPred
0.090
T
GERP RS
0.96
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.077
gMVP
0.55
Mutation Taster
=93/7
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: rs876658871; hg19: chr19-1226501; API