19-49183151-A-G

Variant names:

• chr19-49183151-A-G
• rs56355369
• NM_017636.4:c.1682A>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_017636.4(TRPM4):​c.1682A>G​(p.Asp561Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D561E) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TRPM4 NM_017636.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.50
• Publications: 19 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRPM4	NM_017636.4	MANE Select	c.1682A>G	p.Asp561Gly	missense	Exon 12 of 25	NP_060106.2
	TRPM4	NM_001321281.2		c.1337A>G	p.Asp446Gly	missense	Exon 10 of 23	NP_001308210.1
	TRPM4	NM_001195227.2		c.1682A>G	p.Asp561Gly	missense	Exon 12 of 24	NP_001182156.1	Q8TD43-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRPM4	ENST00000252826.10	TSL:1 MANE Select	c.1682A>G	p.Asp561Gly	missense	Exon 12 of 25	ENSP00000252826.4	Q8TD43-1
	TRPM4	ENST00000427978.6	TSL:1	c.1682A>G	p.Asp561Gly	missense	Exon 12 of 24	ENSP00000407492.1	Q8TD43-3
	TRPM4	ENST00000595519.5	TSL:1	n.*1092A>G		non_coding_transcript_exon	Exon 10 of 23	ENSP00000469893.1	M0QYK7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 10

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.56
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	D
Eigen	Uncertain	0.27
Eigen_PC	Benign	0.13
FATHMM_MKL	Benign	0.75	D
LIST_S2	Uncertain	0.86	D
M_CAP	Uncertain	0.12	D
MetaRNN	Uncertain	0.50	D
MetaSVM	Uncertain	0.023	D
MutationAssessor	Pathogenic	3.4	M
PhyloP100		1.5
PrimateAI	Benign	0.48	T
PROVEAN	Pathogenic	-5.3	D
REVEL	Uncertain	0.47
Sift	Uncertain	0.012	D
Sift4G	Benign	0.076	T
Polyphen		0.87	P
Vest4		0.42
MutPred		0.56		Gain of MoRF binding (P = 0.0683)
MVP		0.94
MPC		1.1
ClinPred		0.82	D
GERP RS		4.0
Varity_R		0.55
gMVP		0.64
Mutation Taster		=81/19	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

Other links and lift over

dbSNP: rs56355369; hg19: chr19-49686408;