7-139872323-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_001061.7(TBXAS1):c.178C>T(p.Arg60Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000545 in 1,613,692 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R60H) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.00012 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000047 (0 hom.)
• Consequence: TBXAS1 NM_001061.7 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.293

Genes affected

TBXAS1 (HGNC:11609): (thromboxane A synthase 1) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. However, this protein is considered a member of the cytochrome P450 superfamily on the basis of sequence similarity rather than functional similarity. This endoplasmic reticulum membrane protein catalyzes the conversion of prostglandin H2 to thromboxane A2, a potent vasoconstrictor and inducer of platelet aggregation. The enzyme plays a role in several pathophysiological processes including hemostasis, cardiovascular disease, and stroke. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.039197266).
• BP6: Variant 7-139872323-C-T is Benign according to our data. Variant chr7-139872323-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1459406.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TBXAS1	NM_001061.7	c.178C>T	p.Arg60Cys	missense_variant	2/13	ENST00000448866.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TBXAS1	ENST00000448866.7	c.178C>T	p.Arg60Cys	missense_variant	2/13	1	NM_001061.7	P1

Frequencies

GnomAD3 genomes AF: 0.000125 AC: 19 AN: 152138 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000217

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000189

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000796 AC: 20 AN: 251408 Hom.: 0 AF XY: 0.0000957 AC XY: 13 AN XY: 135880

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.0000867

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.000277

Gnomad NFE exome AF: 0.0000704

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000472 AC: 69 AN: 1461436 Hom.: 0 Cov.: 31 AF XY: 0.0000550 AC XY: 40 AN XY: 727030

Gnomad4 AFR exome AF: 0.000120

Gnomad4 AMR exome AF: 0.000134

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000464

Gnomad4 FIN exome AF: 0.000262

Gnomad4 NFE exome AF: 0.0000297

Gnomad4 OTH exome AF: 0.0000994

GnomAD4 genome AF: 0.000125 AC: 19 AN: 152256 Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9 AN XY: 74430

Gnomad4 AFR AF: 0.000217

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.000189

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000873 Hom.: 0

Bravo AF: 0.000125

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000741 AC: 9

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jun 30, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.52
Cadd	Benign	19
Dann	Benign	0.95
DEOGEN2	Benign	0.094	T;.;.;.;T;T;.
Eigen	Benign	-0.53
Eigen_PC	Benign	-0.52
FATHMM_MKL	Benign	0.20	N
LIST_S2	Benign	0.83	T;.;.;T;T;.;T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.039	T;T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D;D;D
PrimateAI	Benign	0.29	T
PROVEAN	Pathogenic	-4.6	D;.;.;.;.;.;.
REVEL	Benign	0.073
Sift	Benign	0.077	T;.;.;.;.;.;.
Sift4G	Benign	0.19	T;.;.;.;.;.;.
Polyphen		0.020, 0.070	.;.;B;B;B;.;.
Vest4		0.22
MVP		0.36
MPC		0.19
ClinPred		0.38	T
GERP RS		0.55
gMVP		0.77

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: rs143035930; hg19: chr7-139572122;