22-26540862-C-T

Variant summary

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

The NM_003595.5(TPST2):​c.769G>A​(p.Gly257Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000176 in 1,613,996 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: 𝑓 0.00027 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

TPST2
NM_003595.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.43
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]

Genome browser will be placed here

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=0.08036253).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPST2NM_003595.5 linkuse as main transcriptc.769G>A p.Gly257Ser missense_variant 3/7 ENST00000338754.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPST2ENST00000338754.9 linkuse as main transcriptc.769G>A p.Gly257Ser missense_variant 3/71 NM_003595.5 P1

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152140
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000367
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000104
AC:
26
AN:
251040
Hom.:
0
AF XY:
0.0000663
AC XY:
9
AN XY:
135694
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.0000289
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:
0.000167
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000166
AC:
243
AN:
1461738
Hom.:
0
Cov.:
30
AF XY:
0.000147
AC XY:
107
AN XY:
727154
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000200
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000269
AC:
41
AN:
152258
Hom.:
0
Cov.:
33
AF XY:
0.000201
AC XY:
15
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000387
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000368
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000155
Hom.:
0
Bravo
AF:
0.000340
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000107
AC:
13
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsDec 18, 2023The c.769G>A (p.G257S) alteration is located in exon 3 (coding exon 1) of the TPST2 gene. This alteration results from a G to A substitution at nucleotide position 769, causing the glycine (G) at amino acid position 257 to be replaced by a serine (S). 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
0.13
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.28
T;T;T;.
Eigen
Benign
-0.016
Eigen_PC
Benign
0.096
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.85
.;.;D;T
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.080
T;T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
1.4
L;L;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
0.41
N;N;N;N
REVEL
Benign
0.14
Sift
Benign
0.13
T;T;T;T
Sift4G
Benign
0.31
T;T;T;T
Polyphen
0.070
B;B;B;.
Vest4
0.40
MVP
0.22
MPC
0.62
ClinPred
0.026
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.20
gMVP
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs149746837; hg19: chr22-26936828; COSMIC: COSV58679487; COSMIC: COSV58679487; API