rs1553128600
Variant summary
Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP3
The NM_001128425.2(MUTYH):c.602T>G(p.Met201Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,138 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M201I) has been classified as Likely benign.
Frequency
Consequence
NM_001128425.2 missense
Scores
Clinical Significance
Conservation
Publications
- familial adenomatous polyposis 2Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen, G2P
- colorectal cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- familial ovarian cancerInheritance: AD, AR Classification: NO_KNOWN Submitted by: ClinGen
- hereditary breast carcinomaInheritance: AD, AR Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Uncertain_significance. The variant received 5 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MUTYH | ENST00000710952.2 | c.602T>G | p.Met201Arg | missense_variant | Exon 8 of 16 | NM_001128425.2 | ENSP00000518552.2 | |||
| MUTYH | ENST00000456914.7 | c.518T>G | p.Met173Arg | missense_variant | Exon 8 of 16 | 1 | NM_001048174.2 | ENSP00000407590.2 | ||
| ENSG00000288208 | ENST00000671898.1 | n.1106T>G | non_coding_transcript_exon_variant | Exon 12 of 21 | ENSP00000499896.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152138Hom.: 0 Cov.: 33 show subpopulations
GnomAD4 exome Cov.: 36
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152138Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74322 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Familial adenomatous polyposis 2 Uncertain:1
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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. This variant has not been reported in the literature in individuals affected with MUTYH-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces methionine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 201 of the MUTYH protein (p.Met201Arg).
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at