rs764546111
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2
The NM_001048174.2(MUTYH):c.423G>C(p.Glu141Asp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000889 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. 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. E141A) has been classified as Uncertain significance.
Frequency
Consequence
NM_001048174.2 missense, splice_region
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MUTYH | NM_001128425.2 | c.507G>C | p.Glu169Asp | missense_variant, splice_region_variant | 7/16 | ENST00000710952.2 | |
MUTYH | NM_001048174.2 | c.423G>C | p.Glu141Asp | missense_variant, splice_region_variant | 7/16 | ENST00000456914.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MUTYH | ENST00000710952.2 | c.507G>C | p.Glu169Asp | missense_variant, splice_region_variant | 7/16 | NM_001128425.2 | |||
MUTYH | ENST00000456914.7 | c.423G>C | p.Glu141Asp | missense_variant, splice_region_variant | 7/16 | 1 | NM_001048174.2 | A1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.0000278 AC: 7AN: 251468Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135914
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461892Hom.: 0 Cov.: 36 AF XY: 0.00000550 AC XY: 4AN XY: 727246
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Familial adenomatous polyposis 2 Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Oct 02, 2023 | This missense variant replaces glutamic acid with aspartic acid at codon 169 of the MUTYH protein. This variant is also known as c.465G>C (p.Glu155Asp) based on an alternative transcript (NM_001048171). Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 7/251468 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 05, 2023 | 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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 230524). This variant has not been reported in the literature in individuals affected with MUTYH-related conditions. This variant is present in population databases (rs764546111, gnomAD 0.005%). This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 169 of the MUTYH protein (p.Glu169Asp). - |
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Sep 11, 2023 | This missense variant replaces glutamic acid with aspartic acid at codon 169 of the MUTYH protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with MUTYH-related disorders in the literature. This variant has been identified in 7/251468 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 17, 2022 | The p.E169D variant (also known as c.507G>C), located in coding exon 7 of the MUTYH gene, results from a G to C substitution at nucleotide position 507. The glutamic acid at codon 169 is replaced by aspartic acid, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Apr 21, 2022 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at