rs182262420

Positions:

chr19-49202044-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_017636.4(TRPM4):c.3034G>A(p.Val1012Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000136 in 1,613,986 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

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

TRPM4
NM_017636.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.304

Variant links:

Genes affected

TRPM4 (HGNC:17993): (transient receptor potential cation channel subfamily M member 4) The protein encoded by this gene is a calcium-activated nonselective ion channel that mediates transport of monovalent cations across membranes, thereby depolarizing the membrane. The activity of the encoded protein increases with increasing intracellular calcium concentration, but this channel does not transport calcium. [provided by RefSeq, Mar 2016]

TRPM4 links:

TRPM4 (HGNC:):

TRPM4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.020056337).

BS2

High AC in GnomAd4 at 26 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRPM4	NM_017636.4 linkuse as main transcript	c.3034G>A	p.Val1012Ile	missense_variant	20/25	ENST00000252826.10	NP_060106.2	Q8TD43-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRPM4	ENST00000252826.10 linkuse as main transcript	c.3034G>A	p.Val1012Ile	missense_variant	20/25	1	NM_017636.4	ENSP00000252826.4		Q8TD43-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00154

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000471

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000171

AC:

AN:

251262

Hom.:

AF XY:

0.000177

AC XY:

AN XY:

135840

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000381

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.000418

Gnomad NFE exome

AF:

0.000176

Gnomad OTH exome

AF:

0.000651

GnomAD4 exome

AF:

0.000133

AC:

194

AN:

1461718

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

727188

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000403

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.000695

Gnomad4 NFE exome

AF:

0.0000980

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000171

AC:

AN:

152268

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00155

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.000471

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000152

Hom.:

Bravo

AF:

0.0000945

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000198

AC:

Asia WGS

AF:

0.00289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jul 16, 2019

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -

Progressive familial heart block type IB

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 06, 2024

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1012 of the TRPM4 protein (p.Val1012Ile). This variant is present in population databases (rs182262420, gnomAD 0.05%), and has an allele count higher than expected for a pathogenic variant. 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: 536798). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". 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. -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 09, 2024

The c.3034G>A (p.V1012I) alteration is located in exon 20 (coding exon 20) of the TRPM4 gene. This alteration results from a G to A substitution at nucleotide position 3034, causing the valine (V) at amino acid position 1012 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.57

CADD

Benign

DANN

Benign

0.87

DEOGEN2

Uncertain

0.52

D;.

Eigen

Benign

-0.82

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.31

LIST_S2

Benign

0.67

T;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.020

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

M;.

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.75

N;N

REVEL

Benign

0.022

Sift

Benign

0.24

T;T

Sift4G

Benign

0.48

T;T

Polyphen

0.0040

B;B

Vest4

0.15

MVP

0.42

MPC

0.23

ClinPred

0.024

GERP RS

1.9

Varity_R

0.17

gMVP

0.25

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over