Variant 22-26536461-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003595.5(TPST2):c.868A>G(p.Ile290Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000287 in 1,394,460 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

TPST2
NM_003595.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.58

Variant links:

Genes affected

TPST2 (HGNC:12021): (tyrosylprotein sulfotransferase 2) The protein encoded by this gene catalyzes the O-sulfation of tyrosine residues within acidic regions of proteins. The encoded protein is a type II integral membrane protein found in the Golgi body. Alternative splicing produces multiple transcript variants encoding distinct isoforms. [provided by RefSeq, May 2018]

TPST2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.22426865).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TPST2	NM_003595.5 linkuse as main transcript	c.868A>G	p.Ile290Val	missense_variant	4/7	ENST00000338754.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TPST2	ENST00000338754.9 linkuse as main transcript	c.868A>G	p.Ile290Val	missense_variant	4/7	1	NM_003595.5	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000509

AC:

AN:

196434

Hom.:

AF XY:

0.00000961

AC XY:

AN XY:

104062

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000379

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000287

AC:

AN:

1394460

Hom.:

Cov.:

AF XY:

0.00000437

AC XY:

AN XY:

685902

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000276

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:

0.00

Gnomad4 OTH exome

AF:

0.0000523

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 04, 2023

The c.868A>G (p.I290V) alteration is located in exon 4 (coding exon 2) of the TPST2 gene. This alteration results from a A to G substitution at nucleotide position 868, causing the isoleucine (I) at amino acid position 290 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.33

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.11

T;T;T;.

Eigen

Benign

-0.13

Eigen_PC

Benign

0.052

FATHMM_MKL

Uncertain

0.90

M_CAP

Benign

0.0051

MetaRNN

Benign

0.22

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.0

L;L;L;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-0.39

N;N;N;N

REVEL

Benign

0.20

Sift

Benign

0.51

T;T;T;T

Sift4G

Benign

0.68

T;T;T;T

Polyphen

0.0

B;B;B;.

Vest4

0.33

MutPred

0.33

Loss of catalytic residue at P292 (P = 0.0444);Loss of catalytic residue at P292 (P = 0.0444);Loss of catalytic residue at P292 (P = 0.0444);.;

MVP

0.49

MPC

0.49

ClinPred

0.19

GERP RS

4.9

Varity_R

0.28

gMVP

0.52

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