rs35145363

Positions:

• chr19-49202034-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_017636.4(TRPM4):​c.3024G>A​(p.Ala1008=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00503 in 1,613,914 control chromosomes in the GnomAD database, including 326 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.025 (175 hom., cov: 32)
  • Exomes 𝑓: 0.0029 (151 hom.)
• Consequence: TRPM4 NM_017636.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:8
• Conservation: PhyloP100: -3.35

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]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 19-49202034-G-A is Benign according to our data. Variant chr19-49202034-G-A is described in ClinVar as [Benign]. Clinvar id is 329871.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-49202034-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=-3.35 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0835 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRPM4	NM_017636.4	c.3024G>A	p.Ala1008=	synonymous_variant	20/25	ENST00000252826.10	NP_060106.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRPM4	ENST00000252826.10	c.3024G>A	p.Ala1008=	synonymous_variant	20/25	1	NM_017636.4	ENSP00000252826	P1

Frequencies

GnomAD3 genomes AF: 0.0249 AC: 3791 AN: 152098 Hom.: 175 Cov.: 32

Gnomad AFR AF: 0.0858

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0102

Gnomad ASJ AF: 0.000288

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.000529

Gnomad OTH AF: 0.0201

GnomAD3 exomes AF: 0.00672 AC: 1688 AN: 251086 Hom.: 66 AF XY: 0.00496 AC XY: 674 AN XY: 135754

Gnomad AFR exome AF: 0.0885

Gnomad AMR exome AF: 0.00431

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000392

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000555

Gnomad OTH exome AF: 0.00424

GnomAD4 exome AF: 0.00295 AC: 4308 AN: 1461698 Hom.: 151 Cov.: 32 AF XY: 0.00262 AC XY: 1906 AN XY: 727166

Gnomad4 AFR exome AF: 0.0899

Gnomad4 AMR exome AF: 0.00476

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.000325

Gnomad4 FIN exome AF: 0.0000564

Gnomad4 NFE exome AF: 0.000546

Gnomad4 OTH exome AF: 0.00669

GnomAD4 genome AF: 0.0250 AC: 3804 AN: 152216 Hom.: 175 Cov.: 32 AF XY: 0.0241 AC XY: 1793 AN XY: 74436

Gnomad4 AFR AF: 0.0859

Gnomad4 AMR AF: 0.0101

Gnomad4 ASJ AF: 0.000288

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000529

Gnomad4 OTH AF: 0.0198

Alfa AF: 0.0104 Hom.: 30

Bravo AF: 0.0287

Asia WGS AF: 0.00606 AC: 21 AN: 3478

EpiCase AF: 0.000654

EpiControl AF: 0.000415

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:4

Benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 10, 2016	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Feb 05, 2024	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -

Progressive familial heart block type IB Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Cardiovascular phenotype Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 26, 2015

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
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.045
DANN	Benign	0.36

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

Other links and lift over

dbSNP: rs35145363; hg19: chr19-49705291;