NM_001048174.2:c.1144G>A
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 4P and 3B. PM1PM2BP4_ModerateBP6
The NM_001048174.2(MUTYH):c.1144G>A(p.Glu382Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,930 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E382D) has been classified as Uncertain significance.
Frequency
Consequence
NM_001048174.2 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 1 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MUTYH | ENST00000456914.7 | c.1144G>A | p.Glu382Lys | missense_variant | Exon 13 of 16 | 1 | NM_001048174.2 | ENSP00000407590.2 | ||
ENSG00000288208 | ENST00000671898.1 | n.1732G>A | non_coding_transcript_exon_variant | Exon 17 of 21 | ENSP00000499896.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152154Hom.: 0 Cov.: 33 show subpopulations
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461776Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1AN XY: 727178 show subpopulations
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152154Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74324 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces glutamic acid with lysine at codon 410 of the MUTYH protein. Computational prediction suggests that this variant may not impact protein structure and function. 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 not been identified 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. -
The p.E410K variant (also known as c.1228G>A), located in coding exon 13 of the MUTYH gene, results from a G to A substitution at nucleotide position 1228. The glutamic acid at codon 410 is replaced by lysine, an amino acid with similar properties. This amino acid position is not well 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. -
Familial adenomatous polyposis 2 Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 410 of the MUTYH protein (p.Glu410Lys). 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. ClinVar contains an entry for this variant (Variation ID: 142747). 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. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at