Genetic Variant TBXA2R:p.Thr81Thr (chr19-3600392-G-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_001060.6(TBXA2R):c.243C>A(p.Thr81Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. T81T) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TBXA2R
NM_001060.6 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -3.73

Publications

13 publications found

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 Gene-Disease associations (from GenCC):

qualitative platelet defect
Inheritance: AD Classification: MODERATE Submitted by: ClinGen
bleeding diathesis due to thromboxane synthesis deficiency
Inheritance: Unknown, AD Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
schizophrenia
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

TBXA2R links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.66).

BP7

Synonymous conserved (PhyloP=-3.73 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBXA2R	NM_001060.6 link	c.243C>A	p.Thr81Thr	synonymous_variant	Exon 2 of 3	ENST00000375190.10	NP_001051.1	P21731-3Q05C92Q0VAB0
TBXA2R	NM_201636.3 link	c.243C>A	p.Thr81Thr	synonymous_variant	Exon 2 of 4		NP_963998.2	P21731-2Q05C92Q0VAB0
TBXA2R	XM_011528214.3 link	c.243C>A	p.Thr81Thr	synonymous_variant	Exon 3 of 4		XP_011526516.1	P21731-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TBXA2R	ENST00000375190.10 link	c.243C>A	p.Thr81Thr	synonymous_variant	Exon 2 of 3	1	NM_001060.6	ENSP00000364336.4	P21731-3
TBXA2R	ENST00000589966.1 link	c.243C>A	p.Thr81Thr	synonymous_variant	Exon 1 of 2	1		ENSP00000468145.1	K7ER80
TBXA2R	ENST00000411851.3 link	c.243C>A	p.Thr81Thr	synonymous_variant	Exon 2 of 4	2		ENSP00000393333.2	P21731-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

245816

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461076

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726870

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53008

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111728

Other (OTH)

AF:

0.00

AC:

AN:

60362

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.66

CADD

Benign

0.22

(source)

DANN

Benign

0.80

PhyloP100

-3.7

PromoterAI

-0.00060

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over