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
Consequence
NM_000455.5 missense
Scores
Clinical Significance
Conservation
Publications
- familial pancreatic carcinomaInheritance: AD Classification: DEFINITIVE Submitted by: G2P
- Peutz-Jeghers syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, Genomics England PanelApp, G2P
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
Genome browser will be placed here
ACMG classification
Our verdict: Likely_benign. The variant received -3 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| STK11 | NM_000455.5 | c.877G>A | p.Glu293Lys | missense_variant | Exon 7 of 10 | ENST00000326873.12 | NP_000446.1 | |
| STK11 | NM_001407255.1 | c.877G>A | p.Glu293Lys | missense_variant | Exon 7 of 9 | NP_001394184.1 | ||
| STK11 | NR_176325.1 | n.2144G>A | non_coding_transcript_exon_variant | Exon 8 of 11 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| STK11 | ENST00000326873.12 | c.877G>A | p.Glu293Lys | missense_variant | Exon 7 of 10 | 1 | NM_000455.5 | ENSP00000324856.6 | ||
| STK11 | ENST00000652231.1 | c.877G>A | p.Glu293Lys | missense_variant | Exon 7 of 9 | ENSP00000498804.1 | ||||
| STK11 | ENST00000585748.3 | c.505G>A | p.Glu169Lys | missense_variant | Exon 9 of 12 | 3 | ENSP00000477641.2 | |||
| STK11 | ENST00000593219.6 | n.*702G>A | non_coding_transcript_exon_variant | Exon 8 of 11 | 3 | ENSP00000466610.1 | ||||
| STK11 | ENST00000593219.6 | n.*702G>A | 3_prime_UTR_variant | Exon 8 of 11 | 3 | ENSP00000466610.1 |
Frequencies
GnomAD3 genomes Cov.: 34
GnomAD2 exomes AF: 0.0000116 AC: 2AN: 172130 AF XY: 0.0000217 show subpopulations
GnomAD4 exome AF: 0.00000425 AC: 6AN: 1410818Hom.: 0 Cov.: 30 AF XY: 0.00000717 AC XY: 5AN XY: 697290 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 34
ClinVar
Submissions by phenotype
Peutz-Jeghers syndrome Uncertain:4
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. -
- -
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. -
- -
Hereditary cancer-predisposing syndrome Benign:2
- -
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:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at