rs63750002
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP6_Very_Strong
The NM_000251.3(MSH2):c.287G>A(p.Arg96His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,611,882 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★★).
Frequency
Consequence
NM_000251.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -8 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000330 AC: 5AN: 151646Hom.: 0 Cov.: 31
GnomAD3 exomes AF: 0.0000199 AC: 5AN: 251288Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135820
GnomAD4 exome AF: 0.0000281 AC: 41AN: 1460236Hom.: 0 Cov.: 31 AF XY: 0.0000317 AC XY: 23AN XY: 726488
GnomAD4 genome AF: 0.0000330 AC: 5AN: 151646Hom.: 0 Cov.: 31 AF XY: 0.0000405 AC XY: 3AN XY: 74016
ClinVar
Submissions by phenotype
Lynch syndrome 1 Benign:3
This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 27363726]. -
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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. -
not specified Benign:1
Variant summary: MSH2 c.287G>A (p.Arg96His) results in a non-conservative amino acid change located in the N-terminal domain (IPR007695) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 2e-05 in 251288 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.287G>A has been reported in the literature together with an MSH2 frameshift variant in a family affected with Lynch Syndrome, authors noted that the variant of interest did not segregate with the disease (Wijnen_1995). In addition, a co-occurrence with a (likely) pathogenic variant has also been reported (RAD51C c.1026+5_1026+7delGTA; in an LCA internal sample), providing supporting evidence for a benign role. Publications also reported experimental evidence evaluating an impact on protein function, and demonstrated no effect on MMR activity for this variant (Martinez_2010, Houlleberghs_2016). Six submitters, including an expert panel (InSiGHT), have provided clinical-significance assessments for this variant in ClinVar without evidence for independent evaluation, and all of them classified the variant as likely benign. Based on the evidence outlined above, the variant was classified as likely benign. -
Lynch syndrome Benign:1
Multifactorial likelihood analysis posterior probability 0.001-0.049 -
not provided Benign:1
This variant is associated with the following publications: (PMID: 9311737, 18547406, 12547705, 12414824, 15340264, 22949387, 17074586, 7726159, 20176959, 22045683, 27266541) -
Hereditary nonpolyposis colorectal neoplasms Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at