Variant 4-121899614-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BS2

The NM_001130698.2(TRPC3):c.2545C>A(p.Gln849Lys) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000342 in 1,460,454 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TRPC3
NM_001130698.2 missense, splice_region

Scores

Splicing: ADA: 0.9269

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.25

Variant links:

Genes affected

TRPC3 (HGNC:12335): (transient receptor potential cation channel subfamily C member 3) The protein encoded by this gene is a membrane protein that can form a non-selective channel permeable to calcium and other cations. The encoded protein appears to be induced to form channels by a receptor tyrosine kinase-activated phosphatidylinositol second messenger system and also by depletion of intracellular calcium stores. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

TRPC3 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TRPC3. . Gene score misZ 3.8433 (greater than the threshold 3.09). Trascript score misZ 3.0976 (greater than threshold 3.09). GenCC has associacion of gene with spinocerebellar ataxia type 41.

BS2

High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRPC3	NM_001130698.2 linkuse as main transcript	c.2545C>A	p.Gln849Lys	missense_variant, splice_region_variant	10/12	ENST00000379645.8	NP_001124170.1	Q13507-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRPC3	ENST00000379645.8 linkuse as main transcript	c.2545C>A	p.Gln849Lys	missense_variant, splice_region_variant	10/12	1	NM_001130698.2	ENSP00000368966.3		Q13507-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250138

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135274

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000982

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1460454

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726636

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Spinocerebellar ataxia type 41

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Neuberg Centre For Genomic Medicine, NCGM

The missense variant c.2545C>A (p.Gln849Lys) in TRPC3 gene has not been reported previously as a pathogenic variant nor as a benign variant, to our knowledge. This variant is reported with the allele frequency (0.001%) in the gnomAD Exomes. The amino acid Glutamine at position 849 is changed to a Lysine changing protein sequence and it might alter its composition and physico-chemical properties. The amino acid change p.Gln849Lys in TRPC3 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.16

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

DANN

Uncertain

0.98

Eigen

Uncertain

0.22

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.86

D;D;D

M_CAP

Uncertain

0.088

MetaRNN

Uncertain

0.55

D;D;D

MetaSVM

Uncertain

-0.15

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-2.5

D;D;D

REVEL

Uncertain

0.55

Sift

Benign

0.18

T;T;T

Sift4G

Benign

0.15

T;T;T

Vest4

0.76

MVP

0.57

MPC

1.0

ClinPred

0.78

GERP RS

5.6

gMVP

0.73

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.93

dbscSNV1_RF

Pathogenic

0.77

SpliceAI score (max)

0.010

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