chr7-139872333-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001061.7(TBXAS1):​c.183+5G>A variant causes a splice donor 5th base, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000752 in 1,613,340 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00043 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00079 ( 15 hom. )

Consequence

TBXAS1
NM_001061.7 splice_donor_5th_base, intron

Scores

2
Splicing: ADA: 0.3259
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.89
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 7-139872333-G-A is Benign according to our data. Variant chr7-139872333-G-A is described in ClinVar as [Benign]. Clinvar id is 499766.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000433 (66/152286) while in subpopulation SAS AF= 0.00953 (46/4828). AF 95% confidence interval is 0.00734. There are 1 homozygotes in gnomad4. There are 40 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 15 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBXAS1NM_001061.7 linkuse as main transcriptc.183+5G>A splice_donor_5th_base_variant, intron_variant ENST00000448866.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBXAS1ENST00000448866.7 linkuse as main transcriptc.183+5G>A splice_donor_5th_base_variant, intron_variant 1 NM_001061.7 P1P24557-1

Frequencies

GnomAD3 genomes
AF:
0.000434
AC:
66
AN:
152168
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00952
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000220
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.00143
AC:
360
AN:
251370
Hom.:
5
AF XY:
0.00193
AC XY:
262
AN XY:
135852
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0104
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000264
Gnomad OTH exome
AF:
0.000977
GnomAD4 exome
AF:
0.000785
AC:
1147
AN:
1461054
Hom.:
15
Cov.:
31
AF XY:
0.00107
AC XY:
781
AN XY:
726854
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.000191
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00992
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000175
Gnomad4 OTH exome
AF:
0.000928
GnomAD4 genome
AF:
0.000433
AC:
66
AN:
152286
Hom.:
1
Cov.:
32
AF XY:
0.000537
AC XY:
40
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00953
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000221
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000271
Hom.:
0
Bravo
AF:
0.000166
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.000545
EpiControl
AF:
0.000593

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 02, 2023- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jan 24, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
17
DANN
Benign
0.70

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.33
dbscSNV1_RF
Benign
0.47
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs368506589; hg19: chr7-139572132; API