rs878854186
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_ModeratePM2PP5_Moderate
The NM_001048174.2(MUTYH):c.1468delA(p.Ser490ValfsTer53) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★).
Frequency
Consequence
NM_001048174.2 frameshift
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MUTYH | ENST00000456914.7 | c.1468delA | p.Ser490ValfsTer53 | frameshift_variant | Exon 16 of 16 | 1 | NM_001048174.2 | ENSP00000407590.2 | ||
ENSG00000288208 | ENST00000671898.1 | n.*211delA | non_coding_transcript_exon_variant | Exon 21 of 21 | ENSP00000499896.1 | |||||
ENSG00000288208 | ENST00000671898.1 | n.*211delA | 3_prime_UTR_variant | Exon 21 of 21 | ENSP00000499896.1 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD4 exome Cov.: 31
GnomAD4 genome Cov.: 31
ClinVar
Submissions by phenotype
Familial adenomatous polyposis 2 Pathogenic:1
This sequence change creates a premature translational stop signal (p.Ser518Valfs*53) in the MUTYH gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 32 amino acid(s) of the MUTYH protein. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MUTYH-related conditions. This variant is also known as Gln512-Phe519. ClinVar contains an entry for this variant (Variation ID: 238341). This variant disrupts the conserved PCNA binding motif of the MUTYH protein, which has been shown to be critical for MUTYH-PCNA binding and repair efficiency (PMID: 11092888, 26377631, 11433026, 11864576). While functional studies have not been performed to directly test the effect of this variant on MUTYH protein function, this suggests that disruption of this region of the protein is causative of disease. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at