19-3595692-T-C

Position:

chr19-3595692-T-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001060.6(TBXA2R):c.1028A>G(p.Gln343Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000114 in 1,584,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000098 ( 0 hom. )

Consequence

TBXA2R
NM_001060.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.214

Variant links:

Genes affected

TBXA2R (HGNC:11608): (thromboxane A2 receptor) This gene encodes a member of the G protein-coupled receptor family. The protein interacts with thromboxane A2 to induce platelet aggregation and regulate hemostasis. A mutation in this gene results in a bleeding disorder. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

TBXA2R links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.049647123).

BS2

High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TBXA2R	NM_001060.6 link	c.1028A>G	p.Gln343Arg	missense_variant	3/3	ENST00000375190.10	NP_001051.1	P21731-3Q05C92Q0VAB0
TBXA2R	XM_011528214.3 link	c.1028A>G	p.Gln343Arg	missense_variant	4/4		XP_011526516.1	P21731-3
TBXA2R	NM_201636.3 link	c.983+45A>G		intron_variant			NP_963998.2	P21731-2Q05C92Q0VAB0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TBXA2R	ENST00000375190.10 link	c.1028A>G	p.Gln343Arg	missense_variant	3/3	1	NM_001060.6	ENSP00000364336.4	P21731-3
TBXA2R	ENST00000589966.1 link	c.639A>G	p.Ala213Ala	synonymous_variant	2/2	1		ENSP00000468145.1	K7ER80
TBXA2R	ENST00000411851.3 link	c.983+45A>G		intron_variant		2		ENSP00000393333.2	P21731-2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000102

AC:

AN:

196594

Hom.:

AF XY:

0.0000188

AC XY:

AN XY:

106474

show subpopulations

Gnomad AFR exome

AF:

0.0000892

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000117

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000978

AC:

AN:

1432122

Hom.:

Cov.:

AF XY:

0.0000127

AC XY:

AN XY:

709198

show subpopulations

Gnomad4 AFR exome

AF:

0.0000602

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000109

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000567

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000168

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 02, 2024

The c.1028A>G (p.Q343R) alteration is located in exon 3 (coding exon 2) of the TBXA2R gene. This alteration results from a A to G substitution at nucleotide position 1028, causing the glutamine (Q) at amino acid position 343 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

May 20, 2023

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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬† is likely to be tolerated. This variant has not been reported in the literature in individuals affected with TBXA2R-related conditions. This variant is present in population databases (rs775815868, gnomAD 0.01%). This sequence change replaces glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 343 of the TBXA2R protein (p.Gln343Arg). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.56

CADD

Benign

6.3

DANN

Benign

0.87

DEOGEN2

Benign

0.14

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.013

LIST_S2

Benign

0.29

M_CAP

Benign

0.0070

MetaRNN

Benign

0.050

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

PROVEAN

Benign

0.050

REVEL

Benign

0.042

Sift

Benign

0.049

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.14

MutPred

0.32

Gain of MoRF binding (P = 0.0038);

MVP

0.23

ClinPred

0.0097

GERP RS

-5.6

Varity_R

0.046

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