rs878853745
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000179.3(MSH6):c.4002-2A>G variant causes a splice acceptor, intron change. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_000179.3 splice_acceptor, intron
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: Pathogenic. The variant received 16 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MSH6 | ENST00000234420.11 | c.4002-2A>G | splice_acceptor_variant, intron_variant | Intron 9 of 9 | 1 | NM_000179.3 | ENSP00000234420.5 | |||
| FBXO11 | ENST00000403359.8 | c.*1341T>C | downstream_gene_variant | 1 | NM_001190274.2 | ENSP00000384823.4 |
Frequencies
GnomAD3 genomes AF: 0.00 AC: 0AN: 147680Hom.: 0 Cov.: 31
GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0AN: 1427170Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 710480
GnomAD4 genome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0AN: 147680Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 71896
ClinVar
Submissions by phenotype
Lynch syndrome 5 Pathogenic:1
This variant is considered likely pathogenic. This variant occurs within a consensus splice junction and is predicted to result in abnormal mRNA splicing of either an out-of-frame exon or an in-frame exon necessary for protein stability and/or normal function. -
Hereditary nonpolyposis colorectal neoplasms Pathogenic:1
This sequence change affects an acceptor splice site in intron 9 of the MSH6 gene. While this variant is not anticipated to result in nonsense mediated decay, it likely alters RNA splicing and results in a disrupted protein product. This variant is not present in population databases (gnomAD no frequency). Disruption of this splice site has been observed in individual(s) with colon cancer (PMID: 29237405). ClinVar contains an entry for this variant (Variation ID: 237206). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
Hereditary cancer-predisposing syndrome Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at