2-47803541-C-T
Variant summary
Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7
The NM_000179.3(MSH6):c.3294C>T(p.Cys1098Cys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,614,136 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 Likely benign (★★).
Frequency
Consequence
NM_000179.3 synonymous
Scores
Clinical Significance
Conservation
Publications
- intellectual developmental disorder with dysmorphic facies and behavioral abnormalitiesInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
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ACMG classification
Our verdict: Benign. The variant received -11 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MSH6 | NM_000179.3 | c.3294C>T | p.Cys1098Cys | synonymous_variant | Exon 5 of 10 | ENST00000234420.11 | NP_000170.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MSH6 | ENST00000234420.11 | c.3294C>T | p.Cys1098Cys | synonymous_variant | Exon 5 of 10 | 1 | NM_000179.3 | ENSP00000234420.5 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152132Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000318 AC: 8AN: 251436 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000109 AC: 16AN: 1461886Hom.: 0 Cov.: 33 AF XY: 0.0000165 AC XY: 12AN XY: 727242 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152250Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74444 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:2
The p.Cys1098Cys variant was not identified in the literature nor was it identified in the Clinvitae database, COSMIC, InSiGHT Colon Cancer Gene Variant Database (LOVD), Zhejiang Colon Cancer Database (LOVD), ClinVar database, GeneInsight - COGR database and UMD. The variant was identified in the dbSNP database (ID#: rs766341781) but no frequency information was provided, thus the prevalence of this variant in the general population could not be determined; and in the Exome Aggregation Consortium (ExAC) database (released Jan 13, 2015) in 4 of 16512 alleles (frequency: 0.0002) in the South Asian population, although this low number of observations and low frequency is not substantive enough to determine the prevalence of the variant in the general population and its relationship to disease. It was not observed in European (Non-Finnish)/East Asian/Other/African/Latino/European (Finnish) individuals from the ExAC dataset. The p.Cys1098Cys variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition 1 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in the creation of a 3’ cryptic splice site; however, this is not very predictive of pathogenicity. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
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
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Lynch syndrome 5 Benign:1
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Lynch syndrome Benign:1
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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