rs267607142

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_017636.4(TRPM4):c.19G>A(p.Glu7Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000013 in 1,535,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

TRPM4
NM_017636.4 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 2.94

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.861

PP5

Variant 19-49157885-G-A is Pathogenic according to our data. Variant chr19-49157885-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3770.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-49157885-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRPM4	NM_017636.4 linkuse as main transcript	c.19G>A	p.Glu7Lys	missense_variant	1/25	ENST00000252826.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TRPM4	ENST00000252826.10 linkuse as main transcript	c.19G>A	p.Glu7Lys	missense_variant	1/25	1	NM_017636.4	P1	Q8TD43-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152188

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.23e-7

AC:

AN:

1382850

Hom.:

Cov.:

AF XY:

0.00000147

AC XY:

AN XY:

682378

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.27e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

TRPM4-related disorder

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 13, 2023

The TRPM4 c.19G>A variant is predicted to result in the amino acid substitution p.Glu7Lys. This variant was reported to segregate with progressive familial heart block in three branches of a large South African Afrikaner pedigree (Brink et al. 1995. PubMed ID: 7882468; Kruse et al. 2009. PubMed ID: 19726882). Functional studies showed that this variant leads to attenuated deSUMOylation, reduced endocytosis, elevated channel density at the cell surface, and altered modulation of voltage-dependent gating, suggesting a gain-of-function mechanism (Kruse et al. 2009. PubMed ID: 19726882; Hu et al. 2021. PubMed ID: 33922380). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. This variant is interpreted as likely pathogenic. -

Progressive familial heart block type IB

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 01, 2009

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.39

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.11

T;T;T;.

Eigen

Benign

0.12

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.90

D;D;D;D

M_CAP

Uncertain

0.22

MetaRNN

Pathogenic

0.86

D;D;D;D

MetaSVM

Benign

-0.52

MutationTaster

Benign

1.0

D;N;N

PrimateAI

Uncertain

0.72

Sift4G

Uncertain

0.033

D;T;D;T

Polyphen

0.43, 1.0

.;B;.;D

Vest4

0.29, 0.69, 0.32

MutPred

0.78

Gain of methylation at E7 (P = 0.0034);Gain of methylation at E7 (P = 0.0034);Gain of methylation at E7 (P = 0.0034);Gain of methylation at E7 (P = 0.0034);

MVP

0.83

MPC

0.94

ClinPred

0.82

GERP RS

4.3

Varity_R

0.71

gMVP

0.29

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