NM_000455.5:c.632G>A
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM1BP4BP6BS2
The NM_000455.5(STK11):c.632G>A(p.Arg211Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000181 in 1,600,238 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).
Frequency
Consequence
NM_000455.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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STK11 | NM_000455.5 | c.632G>A | p.Arg211Gln | missense_variant | Exon 5 of 10 | ENST00000326873.12 | NP_000446.1 | |
STK11 | NM_001407255.1 | c.632G>A | p.Arg211Gln | missense_variant | Exon 5 of 9 | NP_001394184.1 | ||
STK11 | NR_176325.1 | n.1899G>A | non_coding_transcript_exon_variant | Exon 6 of 11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
STK11 | ENST00000326873.12 | c.632G>A | p.Arg211Gln | missense_variant | Exon 5 of 10 | 1 | NM_000455.5 | ENSP00000324856.6 | ||
STK11 | ENST00000652231.1 | c.632G>A | p.Arg211Gln | missense_variant | Exon 5 of 9 | ENSP00000498804.1 | ||||
STK11 | ENST00000585748.3 | c.260G>A | p.Arg87Gln | missense_variant | Exon 7 of 12 | 3 | ENSP00000477641.2 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152178Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000448 AC: 10AN: 223198Hom.: 0 AF XY: 0.0000407 AC XY: 5AN XY: 122726
GnomAD4 exome AF: 0.0000186 AC: 27AN: 1448060Hom.: 0 Cov.: 32 AF XY: 0.0000181 AC XY: 13AN XY: 719164
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152178Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74342
ClinVar
Submissions by phenotype
Peutz-Jeghers syndrome Uncertain:6Benign:1
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This missense variant replaces arginine with glutamine at codon 211 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 been reported in individuals affected with breast cancer in the literature (PMID: 25186627, 33471991). This variant has been identified in 10/223198 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 variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
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not provided Uncertain:2
In silico analysis supports that this missense variant does not alter protein structure/function; Observed in an individual with breast cancer (Tung 2015); This variant is associated with the following publications: (PMID: 15863673, 25186627) -
The STK11 c.632G>A (p.Arg211Gln) variant has been reported in the published literature in individuals with breast cancer (PMIDs: 33471991 (2021), see also LOVD (https://databases.lovd.nl/shared/variants/STK11) and 25186627 (2015)) and intrahepatic cholangiocarcinoma (ICC) (PMID: 26056085 (2015)). The frequency of this variant in the general population, 0.0001 (3/28712 chromosomes in South Asian subpopulation (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is higher than would generally be expected for pathogenic variants in this gene. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded conflicting predictions that this variant is deleterious or benign. Based on the available information, we are unable to determine the clinical significance of this variant. -
not specified Uncertain:1Benign:1
Variant summary: STK11 c.632G>A (p.Arg211Gln) results in a conservative amino acid change located in the protein kinase domain (IPR000719) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4.5e-05 in 223198 control chromosomes (gnomAD v2.1 exomes dataset). The observed variant frequency is approximately 7-fold of the estimated maximal expected allele frequency for a pathogenic variant in STK11 causing Peutz-Jeghers Syndrome phenotype (6.3e-06), strongly suggesting that the variant is benign. The variant, c.632G>A, has been reported in the literature in 3 individuals affected breast cancer (Tung_2015, Dorling_2021). These reports however, do not provide unequivocal conclusions about association of the variant with Peutz-Jeghers Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Seven other clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014, and all of them classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as likely benign. -
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Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
This missense variant replaces arginine with glutamine at codon 211 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 been reported in individuals affected with breast cancer in the literature (PMID: 25186627, 33471991). This variant has been identified in 10/223198 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 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. -
Peutz-Jeghers syndrome;C0153594:Malignant tumor of testis;C0235974:Carcinoma of pancreas Uncertain:1
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Breast and/or ovarian cancer Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at