rs371264852
Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2
The NM_000455.5(STK11):c.992G>A(p.Arg331Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000455 in 1,604,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict 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 Benign. Variant got -11 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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STK11 | NM_000455.5 | c.992G>A | p.Arg331Gln | missense_variant | Exon 8 of 10 | ENST00000326873.12 | NP_000446.1 | |
STK11 | NM_001407255.1 | c.992G>A | p.Arg331Gln | missense_variant | Exon 8 of 9 | NP_001394184.1 | ||
STK11 | NR_176325.1 | n.2259G>A | non_coding_transcript_exon_variant | Exon 9 of 11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
STK11 | ENST00000326873.12 | c.992G>A | p.Arg331Gln | missense_variant | Exon 8 of 10 | 1 | NM_000455.5 | ENSP00000324856.6 | ||
STK11 | ENST00000652231.1 | c.992G>A | p.Arg331Gln | missense_variant | Exon 8 of 9 | ENSP00000498804.1 | ||||
STK11 | ENST00000585748.3 | c.620G>A | p.Arg207Gln | missense_variant | Exon 10 of 12 | 3 | ENSP00000477641.2 |
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152172Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000475 AC: 11AN: 231544Hom.: 0 AF XY: 0.0000476 AC XY: 6AN XY: 126090
GnomAD4 exome AF: 0.0000448 AC: 65AN: 1451906Hom.: 0 Cov.: 31 AF XY: 0.0000457 AC XY: 33AN XY: 721392
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152172Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3AN XY: 74344
ClinVar
Submissions by phenotype
Peutz-Jeghers syndrome Uncertain:5Benign:2
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The STK11 c.992G>A (p.Arg331Gln) missense change has a maximum subpopulation frequency of 0.0075% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a benign effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. This variant has been reported in individuals with breast cancer (PMID: 30287823). In addition, four individuals with this variant are reported in a database of women older than 70 years of age who have never had cancer (FLOSSIES, https://whi.color.com/). To our knowledge, this variant has not been reported in individuals with Peutz-Jeghers syndrome. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
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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 specified Uncertain:1Benign:1
Variant summary: STK11 c.992G>A (p.Arg331Gln) results in a conservative amino acid change in 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 4.8e-05 in 231544 control chromosomes. The observed variant frequency is approximately 8 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. c.992G>A has been reported in the literature in individuals affected with colorectal cancer (Yurgelun_2017) and breast and/or ovarian cancer (Krivokuca_2022, and Momozawa_2018); however, authors classified the variant as VUS. These report(s) do not provide unequivocal conclusions about association of the variant with Peutz-Jeghers Syndrome. Co-occurrences with other pathogenic variant(s) have been reported (MLH1 c.1852_1854del, p.K618del), providing supporting evidence for a benign role (Yurgelun_2017). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Ten clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified the variant as VUS (n=7) and likely benign (n=3). Based on the evidence outlined above, the variant was classified as likely benign. -
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not provided Uncertain:1Benign:1
In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 30287823, 28135145, 29106415) -
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Hereditary cancer-predisposing syndrome Benign:2
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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