rs186822052
Variant summary
Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_017636.4(TRPM4):c.3073G>A(p.Val1025Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,613,914 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. V1025V) has been classified as Likely benign.
Frequency
Consequence
NM_017636.4 missense
Scores
Clinical Significance
Conservation
Publications
- erythrokeratodermia variabilis et progressiva 6Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
- progressive familial heart block type IBInheritance: AD Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
- erythrokeratodermia variabilisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- progressive familial heart blockInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Brugada syndromeInheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Genomics England PanelApp, ClinGen
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ACMG classification
Our verdict: Benign. The variant received -9 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152110Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000278 AC: 7AN: 251390 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.0000116 AC: 17AN: 1461804Hom.: 1 Cov.: 32 AF XY: 0.0000124 AC XY: 9AN XY: 727204 show subpopulations
GnomAD4 genome AF: 0.000118 AC: 18AN: 152110Hom.: 0 Cov.: 32 AF XY: 0.0000673 AC XY: 5AN XY: 74298 show subpopulations
ClinVar
Submissions by phenotype
Progressive familial heart block type IB Uncertain:1
This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1025 of the TRPM4 protein (p.Val1025Ile). This variant is present in population databases (rs186822052, gnomAD 0.02%), including at least one homozygous and/or hemizygous individual. 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: 409632). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -
not specified Benign:1
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Cardiovascular phenotype Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at