Variant 22-26536439-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003595.5(TPST2):c.890C>T(p.Ala297Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000109 in 1,559,416 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000099 ( 0 hom. )

Consequence

TPST2
NM_003595.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.24

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TPST2	NM_003595.5 linkuse as main transcript	c.890C>T	p.Ala297Val	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.890C>T	p.Ala297Val	missense_variant	4/7	1	NM_003595.5	P1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000193

AC:

AN:

207744

Hom.:

AF XY:

0.0000181

AC XY:

AN XY:

110580

show subpopulations

Gnomad AFR exome

AF:

0.0000635

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000474

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000207

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000995

AC:

AN:

1407226

Hom.:

Cov.:

AF XY:

0.0000130

AC XY:

AN XY:

693700

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000258

Gnomad4 FIN exome

AF:

0.0000196

Gnomad4 NFE exome

AF:

0.00000923

Gnomad4 OTH exome

AF:

0.0000173

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

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

Oct 26, 2021

The c.890C>T (p.A297V) alteration is located in exon 4 (coding exon 2) of the TPST2 gene. This alteration results from a C to T substitution at nucleotide position 890, causing the alanine (A) at amino acid position 297 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

Pathogenic

0.95

BayesDel_addAF

Uncertain

0.017

BayesDel_noAF

Uncertain

-0.030

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.67

D;D;D;.

Eigen

Uncertain

0.66

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Uncertain

0.96

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.65

D;D;D;D

MetaSVM

Benign

-0.65

MutationAssessor

Uncertain

2.7

M;M;M;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-4.0

D;D;D;D

REVEL

Uncertain

0.43

Sift

Uncertain

0.0010

D;D;D;D

Sift4G

Benign

0.082

T;T;T;T

Polyphen

1.0

D;D;D;.

Vest4

0.90

MVP

0.42

MPC

1.2

ClinPred

0.87

GERP RS

4.9

Varity_R

0.87

gMVP

0.83

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