22-26536475-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_003595.5(TPST2):​c.854C>T​(p.Ser285Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000391 in 1,536,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

TPST2
NM_003595.5 missense

Scores

7
10
2

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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a site Transition state stabilizer (size 0) in uniprot entity TPST2_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.784

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPST2NM_003595.5 linkuse as main transcriptc.854C>T p.Ser285Phe missense_variant 4/7 ENST00000338754.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPST2ENST00000338754.9 linkuse as main transcriptc.854C>T p.Ser285Phe missense_variant 4/71 NM_003595.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152148
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000865
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:
0.0000375
AC:
7
AN:
186692
Hom.:
0
AF XY:
0.0000507
AC XY:
5
AN XY:
98686
show subpopulations
Gnomad AFR exome
AF:
0.0000655
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000236
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000573
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000383
AC:
53
AN:
1384008
Hom.:
0
Cov.:
31
AF XY:
0.0000280
AC XY:
19
AN XY:
679520
show subpopulations
Gnomad4 AFR exome
AF:
0.0000321
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000528
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000307
Gnomad4 OTH exome
AF:
0.000141
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152148
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000865
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
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.0000529
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000253
AC:
3

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 GeneticsFeb 06, 2023The c.854C>T (p.S285F) 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 854, causing the serine (S) at amino acid position 285 to be replaced by a phenylalanine (F). 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
1.0
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.75
D;D;D;.
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
.;.;D;D
M_CAP
Benign
0.057
D
MetaRNN
Pathogenic
0.78
D;D;D;D
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Pathogenic
3.4
M;M;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-6.0
D;D;D;D
REVEL
Uncertain
0.53
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
0.94
P;P;P;.
Vest4
0.98
MVP
0.72
MPC
1.5
ClinPred
0.91
D
GERP RS
4.9
Varity_R
0.94
gMVP
0.86

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.

Other links and lift over

dbSNP: rs142839068; hg19: chr22-26932441; API