NM_017636.4:c.856A>G

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_017636.4(TRPM4):c.856A>G(p.Thr286Ala) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000124 in 1,613,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/26 in silico tools predict a benign outcome for this variant. 2/3 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. T286M) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

TRPM4
NM_017636.4 missense, splice_region

Scores

Splicing: ADA: 0.0003066

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 0.310

Publications

3 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: Labcorp Genetics (formerly Invitae), G2P, 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 -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.045558482).

BS2

High AC in GnomAd4 at 21 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017636.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TRPM4	NM_017636.4	MANE Select	c.856A>G	p.Thr286Ala	missense splice_region	Exon 7 of 25	NP_060106.2
TRPM4	NM_001321281.2		c.511A>G	p.Thr171Ala	missense splice_region	Exon 5 of 23	NP_001308210.1
TRPM4	NM_001195227.2		c.856A>G	p.Thr286Ala	missense splice_region	Exon 7 of 24	NP_001182156.1	Q8TD43-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TRPM4	ENST00000252826.10	TSL:1 MANE Select	c.856A>G	p.Thr286Ala	missense splice_region	Exon 7 of 25	ENSP00000252826.4	Q8TD43-1
TRPM4	ENST00000427978.6	TSL:1	c.856A>G	p.Thr286Ala	missense splice_region	Exon 7 of 24	ENSP00000407492.1	Q8TD43-3
TRPM4	ENST00000595519.5	TSL:1	n.*266A>G		splice_region non_coding_transcript_exon	Exon 5 of 23	ENSP00000469893.1	M0QYK7

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

151720

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000480

GnomAD2 exomes

AF:

0.000191

AC:

AN:

251420

AF XY:

0.000162

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.000794

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000255

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000122

AC:

179

AN:

1461878

Hom.:

Cov.:

AF XY:

0.000140

AC XY:

102

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.000268

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00119

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000520

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000105

AC:

117

AN:

1112008

Other (OTH)

AF:

0.000265

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000138

AC:

AN:

151838

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74212

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41398

American (AMR)

AF:

0.000328

AC:

AN:

15264

Ashkenazi Jewish (ASJ)

AF:

0.00173

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5134

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10546

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

67908

Other (OTH)

AF:

0.000475

AC:

AN:

2104

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.449

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:

0.000243

Hom.:

Bravo

AF:

0.000230

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000491

EpiControl

AF:

0.000356

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Progressive familial heart block type IB (2)

Cardiovascular phenotype (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.66

CADD

Benign

(source)

DANN

Benign

0.31

DEOGEN2

Benign

0.15

Eigen

Benign

-0.92

Eigen_PC

Benign

-0.83

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.58

M_CAP

Benign

0.012

MetaRNN

Benign

0.046

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.14

PhyloP100

0.31

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.52

REVEL

Benign

0.012

Sift

Benign

0.044

Sift4G

Uncertain

0.036

Polyphen

0.0070

Vest4

0.21

MVP

0.45

MPC

0.29

ClinPred

0.014

GERP RS

-1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.058

gMVP

0.24

Mutation Taster

=77/23

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00031

dbscSNV1_RF

Benign

0.024

SpliceAI score (max)

0.32

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.32

Position offset: 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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over