rs762089407
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7
The NM_000179.3(MSH6):c.1740G>A(p.Ser580Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,614,024 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 (★★). Synonymous variant affecting the same amino acid position (i.e. S580S) has been classified 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 -13 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MSH6 | NM_000179.3 | c.1740G>A | p.Ser580Ser | synonymous_variant | Exon 4 of 10 | ENST00000234420.11 | NP_000170.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MSH6 | ENST00000234420.11 | c.1740G>A | p.Ser580Ser | synonymous_variant | Exon 4 of 10 | 1 | NM_000179.3 | ENSP00000234420.5 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152146Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000520 AC: 13AN: 250230 AF XY: 0.0000295 show subpopulations
GnomAD4 exome AF: 0.0000260 AC: 38AN: 1461878Hom.: 0 Cov.: 34 AF XY: 0.0000248 AC XY: 18AN XY: 727238 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152146Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74318 show subpopulations
ClinVar
Submissions by phenotype
Lynch syndrome 5 Benign:2
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing.
Hereditary cancer-predisposing syndrome Benign:2
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: MSH6 c.1740G>A alters a conserved nucleotide resulting in a synonymous change. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 5.2e-05 in 250230 control chromosomes, predominantly at a frequency of 0.00032 within the Latino subpopulation in the gnomAD database. The observed variant frequency within Latino control individuals in the gnomAD database is approximately 2.25 fold of the estimated maximal expected allele frequency for a pathogenic variant in MSH6 causing Hereditary Nonpolyposis Colorectal Cancer phenotype (0.00014). c.1740G>A has been observed in individual(s) affected with Hereditary Nonpolyposis Colorectal Cancer (Pal_2012). These report(s) do not provide unequivocal conclusions about association of the variant with Hereditary Nonpolyposis Colorectal Cancer. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 23047549). ClinVar contains an entry for this variant (Variation ID: 237143). Based on the evidence outlined above, the variant was classified as benign.
MSH6-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).
Lynch syndrome Benign:1
not provided Benign:1
Hereditary nonpolyposis colorectal neoplasms Benign:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at