11-101504541-T-C

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2

The NM_004621.6(TRPC6):c.428A>G(p.Asn143Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000384 in 1,614,144 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

TRPC6
NM_004621.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:2B:1

Conservation

PhyloP100: 5.13

Variant links:

Genes affected

TRPC6 (HGNC:12338): (transient receptor potential cation channel subfamily C member 6) The protein encoded by this gene forms a receptor-activated calcium channel in the cell membrane. The channel is activated by diacylglycerol and is thought to be under the control of a phosphatidylinositol second messenger system. Activation of this channel occurs independently of protein kinase C and is not triggered by low levels of intracellular calcium. Defects in this gene are a cause of focal segmental glomerulosclerosis 2 (FSGS2). [provided by RefSeq, Mar 2009]

TRPC6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21858084).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000171 (26/152322) while in subpopulation AFR AF= 0.000577 (24/41578). AF 95% confidence interval is 0.000398. There are 0 homozygotes in gnomad4. There are 13 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 26 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRPC6	NM_004621.6 link	c.428A>G	p.Asn143Ser	missense_variant	Exon 2 of 13	ENST00000344327.8	NP_004612.2	Q9Y210-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRPC6	ENST00000344327.8 link	c.428A>G	p.Asn143Ser	missense_variant	Exon 2 of 13	1	NM_004621.6	ENSP00000340913.3		Q9Y210-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000478

AC:

AN:

251178

Hom.:

AF XY:

0.0000516

AC XY:

AN XY:

135738

show subpopulations

Gnomad AFR exome

AF:

0.000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000246

AC:

AN:

1461822

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.000598

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000171

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.000577

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000630

Hom.:

Bravo

AF:

0.000212

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:2Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Focal segmental glomerulosclerosis 2

Pathogenic:1Uncertain:1

Jul 01, 2005

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Mar 25, 2019

Bioscientia Institut fuer Medizinische Diagnostik GmbH, Sonic Healthcare

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided

Uncertain:1Benign:1

Sep 16, 2018

Gharavi Laboratory, Columbia University

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: research

- -

Dec 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 143 of the TRPC6 protein (p.Asn143Ser). This variant is present in population databases (rs121434391, gnomAD 0.05%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with focal segmental glomerulosclerosis (PMID: 15924139). ClinVar contains an entry for this variant (Variation ID: 6152). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt TRPC6 protein function with a negative predictive value of 95%. Experimental studies are conflicting or provide insufficient evidence to determine the effect of this variant on TRPC6 function (PMID: 15924139, 19129465, 19936226, 21471003, 24598806). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.25

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.44

T;.;.;.

Eigen

Uncertain

0.66

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

D;D;D;D

M_CAP

Benign

0.028

MetaRNN

Benign

0.22

T;T;T;T

MetaSVM

Benign

-0.31

MutationAssessor

Benign

2.0

M;.;M;M

PrimateAI

Benign

0.48

PROVEAN

Uncertain

-4.2

D;D;D;D

REVEL

Uncertain

0.46

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Uncertain

0.048

D;D;D;D

Polyphen

1.0

D;.;D;D

Vest4

0.48

MVP

0.89

MPC

0.90

ClinPred

0.35

GERP RS

6.0

Varity_R

0.77

gMVP

0.70

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over