chr2-47463073-A-T
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP6
The NM_000251.3(MSH2):c.1429A>T(p.Asn477Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,206 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. N477H) has been classified as Likely benign.
Frequency
Consequence
NM_000251.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MSH2 | NM_000251.3 | c.1429A>T | p.Asn477Tyr | missense_variant | 9/16 | ENST00000233146.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MSH2 | ENST00000233146.7 | c.1429A>T | p.Asn477Tyr | missense_variant | 9/16 | 1 | NM_000251.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152206Hom.: 0 Cov.: 32
GnomAD4 exome Cov.: 31
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152206Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74354
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Aug 16, 2018 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 15, 2023 | 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. - |
Hereditary nonpolyposis colorectal neoplasms Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 18, 2021 | 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MSH2 protein function. This variant has not been reported in the literature in individuals with MSH2-related conditions. ClinVar contains an entry for this variant (Variation ID: 629020). This variant is not present in population databases (ExAC no frequency). This sequence change replaces asparagine with tyrosine at codon 477 of the MSH2 protein (p.Asn477Tyr). The asparagine residue is moderately conserved and there is a large physicochemical difference between asparagine and tyrosine. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at