rs730881988

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000455.5(STK11):​c.950A>C​(p.Glu317Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000254 in 1,577,492 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 8.96
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 Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STK11NM_000455.5 linkc.950A>C p.Glu317Ala missense_variant Exon 8 of 10 ENST00000326873.12 NP_000446.1 Q15831-1A0A0S2Z4D1
STK11NM_001407255.1 linkc.950A>C p.Glu317Ala missense_variant Exon 8 of 9 NP_001394184.1
STK11NR_176325.1 linkn.2217A>C non_coding_transcript_exon_variant Exon 9 of 11

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STK11ENST00000326873.12 linkc.950A>C p.Glu317Ala missense_variant Exon 8 of 10 1 NM_000455.5 ENSP00000324856.6 Q15831-1
STK11ENST00000652231.1 linkc.950A>C p.Glu317Ala missense_variant Exon 8 of 9 ENSP00000498804.1 Q15831-2
STK11ENST00000585748.3 linkc.578A>C p.Glu193Ala missense_variant Exon 10 of 12 3 ENSP00000477641.2 A0A087WT72

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000503
AC:
1
AN:
198670
Hom.:
0
AF XY:
0.00000929
AC XY:
1
AN XY:
107648
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000210
AC:
3
AN:
1425452
Hom.:
0
Cov.:
31
AF XY:
0.00000284
AC XY:
2
AN XY:
705272
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000183
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74258
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000509
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome Uncertain:3
Jul 15, 2021
Genome-Nilou Lab
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 23, 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 alanine, which is neutral and non-polar, at codon 317 of the STK11 protein (p.Glu317Ala). 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 variant has not been reported in the literature in individuals affected with STK11-related conditions. ClinVar contains an entry for this variant (Variation ID: 182916). 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) 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. -

May 14, 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 glutamic acid with alanine at codon 317 of the STK11 protein. Computational prediction suggests that this variant may not impact protein structure and function. 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 1/198670 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. -

not provided Uncertain:1
Mar 13, 2015
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is denoted STK11 c.950A>C at the cDNA level, p.Glu317Ala (E317A) at the protein level, and results in the change of a Glutamic Acid to an Alanine (GAA>GCA). This variant has not, to our knowledge, been published in the literature as pathogenic or benign. STK11 Glu317Ala 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 Glutamic Acid and Alanine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. STK11 Glu317Ala occurs at a position that is conserved across species and is not located in a known functional domain (UniProt). 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 Glu317Ala is pathogenic or benign. We consider it to be a variant of uncertain significance. -

Hereditary cancer-predisposing syndrome Uncertain:1
Oct 17, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.E317A variant (also known as c.950A>C), located in coding exon 8 of the STK11 gene, results from an A to C substitution at nucleotide position 950. The glutamic acid at codon 317 is replaced by alanine, an amino acid with dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Uncertain
0.052
T
BayesDel_noAF
Benign
-0.16
CADD
Benign
19
DANN
Benign
0.55
DEOGEN2
Benign
0.30
T;T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.53
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.065
D
MetaRNN
Uncertain
0.47
T;T
MetaSVM
Benign
-0.71
T
MutationAssessor
Benign
2.0
.;M
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.2
.;N
REVEL
Benign
0.28
Sift
Benign
0.46
.;T
Sift4G
Benign
0.54
T;T
Polyphen
0.0050
.;B
Vest4
0.59
MutPred
0.24
Gain of MoRF binding (P = 0.073);Gain of MoRF binding (P = 0.073);
MVP
0.83
MPC
0.054
ClinPred
0.20
T
GERP RS
2.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.13
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs730881988; hg19: chr19-1223013; API