rs748187859
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_017636.4(TRPM4):c.1603G>A(p.Glu535Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000144 in 1,592,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_017636.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152200Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000923 AC: 2AN: 216774Hom.: 0 AF XY: 0.00000839 AC XY: 1AN XY: 119254
GnomAD4 exome AF: 0.0000125 AC: 18AN: 1439916Hom.: 0 Cov.: 33 AF XY: 0.0000140 AC XY: 10AN XY: 714034
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152200Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3AN XY: 74374
ClinVar
Submissions by phenotype
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Hypertrophic cardiomyopathy Uncertain:1
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Progressive familial heart block type IB Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 535 of the TRPM4 protein (p.Glu535Lys). This variant is present in population databases (rs748187859, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with TRPM4-related conditions. ClinVar contains an entry for this variant (Variation ID: 427975). 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. -
Cardiovascular phenotype Uncertain:1
The p.E535K variant (also known as c.1603G>A), located in coding exon 11 of the TRPM4 gene, results from a G to A substitution at nucleotide position 1603. The glutamic acid at codon 535 is replaced by lysine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at