NM_017636.4:c.1744G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_017636.4(TRPM4):c.1744G>A(p.Gly582Ser) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000374 in 1,614,184 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. 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. G582R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00051 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00036 ( 6 hom. )

Consequence

TRPM4
NM_017636.4 missense, splice_region

Scores

Splicing: ADA: 0.06886

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:8B:4

Conservation

PhyloP100: 4.47

Publications

22 publications found

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 Gene-Disease associations (from GenCC):

erythrokeratodermia variabilis et progressiva 6
Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
progressive familial heart block type IB
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
erythrokeratodermia variabilis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
progressive familial heart block
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Brugada syndrome
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Genomics England PanelApp, ClinGen

TRPM4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.122550696).

BP6

Variant 19-49188641-G-A is Benign according to our data. Variant chr19-49188641-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 35486.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00036 (526/1461888) while in subpopulation MID AF = 0.0187 (108/5768). AF 95% confidence interval is 0.0159. There are 6 homozygotes in GnomAdExome4. There are 281 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check.

BS2

High AC in GnomAd4 at 78 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRPM4	NM_017636.4 link	c.1744G>A	p.Gly582Ser	missense_variant, splice_region_variant	Exon 13 of 25	ENST00000252826.10	NP_060106.2	Q8TD43-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRPM4	ENST00000252826.10 link	c.1744G>A	p.Gly582Ser	missense_variant, splice_region_variant	Exon 13 of 25	1	NM_017636.4	ENSP00000252826.4		Q8TD43-1

Frequencies

GnomAD3 genomes

AF:

0.000526

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00216

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0316

Gnomad NFE

AF:

0.000382

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000509

AC:

128

AN:

251470

AF XY:

0.000544

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00113

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000545

Gnomad OTH exome

AF:

0.00212

GnomAD4 exome

AF:

0.000360

AC:

526

AN:

1461888

Hom.:

Cov.:

AF XY:

0.000386

AC XY:

281

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.000478

AC:

AN:

33480

American (AMR)

AF:

0.00112

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.000191

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000429

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000374

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.0187

AC:

108

AN:

5768

European-Non Finnish (NFE)

AF:

0.000212

AC:

236

AN:

1112012

Other (OTH)

AF:

0.00119

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

128

160

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000512

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.000537

AC XY:

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41560

American (AMR)

AF:

0.00216

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.000414

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.0272

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000382

AC:

AN:

68040

Other (OTH)

AF:

0.00237

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000513

Hom.:

Bravo

AF:

0.000669

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00105

AC:

ExAC

AF:

0.000527

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000600

EpiControl

AF:

0.000889

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:8Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:4Benign:1

Mar 31, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 21887725, 22750058, 26350513, 23382873, 27884173, 27207958, 28341588, 26820365) -

Clinical Genetics, Academic Medical Center

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Mar 17, 2022

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.Gly582Ser variant (rs172149856) has been previously reported in a cardiac conductive block patient who also carried the p.Ala432Thr variant but this variant has not been reported alone (Stallmeyer et al 2012). This variant is listed in the NHLBI GO Exome Sequencing Project with an overall population frequency of 0.07 percent and is listed in the Exome Aggregation Consortium Browser with an overall population frequency of 0.05 percent. The glycine at position 582 is moderately conserved (considering 15 species, Alamut v2.7.1) and computational analyses of the effects of the p.Gly582Ser variant on protein structure and function predict this variant to be benign (SIFT: tolerated, MutationTaster: polymorphism, PolyPhen-2: benign). Because the p.Gly582Ser variant has not been observed without the p.Ala432Thr variant there is not enough evidence to classify this variant with certainty. Pathogenic variants of TRPM4 are inherited in an autosomal dominant manner and are associated with progressive familial heart block, type IB (MIM: 604599). -

Progressive familial heart block type IB

Pathogenic:1Uncertain:2Benign:1

Jan 01, 2012

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Nov 07, 2017

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Jan 31, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Brugada syndrome

Uncertain:1

May 21, 2015

Blueprint Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Progressive familial heart block, type 1A

Uncertain:1

May 28, 2019

Mendelics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Jul 21, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Dec 03, 2018

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.077

BayesDel_noAF

Uncertain

0.070

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.16

T;.

Eigen

Benign

-0.047

Eigen_PC

Benign

0.022

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.80

T;T

M_CAP

Benign

0.059

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-0.52

MutationAssessor

Uncertain

2.3

M;M

PhyloP100

4.5

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.92

N;N

REVEL

Uncertain

0.35

Sift

Benign

0.54

T;T

Sift4G

Benign

0.20

T;T

Polyphen

0.031

B;B

Vest4

0.74

MVP

0.85

MPC

0.32

ClinPred

0.021

GERP RS

3.3

Varity_R

0.13

gMVP

0.50

Mutation Taster

=5/95

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.069

dbscSNV1_RF

Benign

0.29

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over