rs145771389

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_017636.4(TRPM4):​c.988G>A​(p.Glu330Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000214 in 1,613,888 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

TRPM4
NM_017636.4 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: 3.02

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.007197261).
BP6
Variant 19-49171707-G-A is Benign according to our data. Variant chr19-49171707-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 329851.
BS2
High AC in GnomAd4 at 170 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TRPM4NM_017636.4 linkc.988G>A p.Glu330Lys missense_variant Exon 8 of 25 ENST00000252826.10 NP_060106.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TRPM4ENST00000252826.10 linkc.988G>A p.Glu330Lys missense_variant Exon 8 of 25 1 NM_017636.4 ENSP00000252826.4

Frequencies

GnomAD3 genomes
AF:
0.00112
AC:
170
AN:
152156
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00360
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000331
AC:
83
AN:
250604
AF XY:
0.000258
show subpopulations
Gnomad AFR exome
AF:
0.00408
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000120
AC:
176
AN:
1461614
Hom.:
0
Cov.:
32
AF XY:
0.0000949
AC XY:
69
AN XY:
727104
show subpopulations
African (AFR)
AF:
0.00335
AC:
112
AN:
33480
American (AMR)
AF:
0.000425
AC:
19
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.000153
AC:
4
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53156
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1112000
Other (OTH)
AF:
0.000331
AC:
20
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
11
21
32
42
53
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00112
AC:
170
AN:
152274
Hom.:
2
Cov.:
32
AF XY:
0.00125
AC XY:
93
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.00358
AC:
149
AN:
41566
American (AMR)
AF:
0.00105
AC:
16
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68004
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
9
19
28
38
47
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.000387
Hom.:
0
Bravo
AF:
0.00132
ESP6500AA
AF:
0.00250
AC:
11
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000354
AC:
43

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:7
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Progressive familial heart block type IB Uncertain:1Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Jan 21, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:2
Jan 22, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jun 28, 2017
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
Jul 16, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

TRPM4: BS1 -

TRPM4-related disorder Benign:1
Jan 18, 2021
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Cardiovascular phenotype Benign:1
Sep 21, 2018
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
19
DANN
Benign
0.89
DEOGEN2
Benign
0.11
T;.
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.41
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.84
T;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.0072
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.8
L;L
PhyloP100
3.0
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
0.070
N;N
REVEL
Benign
0.099
Sift
Benign
0.94
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.19
B;B
Vest4
0.45
MVP
0.59
MPC
0.44
ClinPred
0.012
T
GERP RS
4.0
Varity_R
0.072
gMVP
0.36
Mutation Taster
=95/5
polymorphism

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

Other links and lift over

dbSNP: rs145771389; hg19: chr19-49674964; COSMIC: COSV53260460; COSMIC: COSV53260460; API