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GeneBe

22-37011110-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_003312.6(TST):​c.811G>A​(p.Val271Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 1,613,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

TST
NM_003312.6 missense

Scores

1
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.858
Variant links:
Genes affected
TST (HGNC:12388): (thiosulfate sulfurtransferase) This is one of two neighboring genes encoding similar proteins that each contain two rhodanese domains. The encoded protein is localized to the mitochondria and catalyzes the conversion of thiosulfate and cyanide to thiocyanate and sulfite. In addition, the protein interacts with 5S ribosomal RNA and facilitates its import into the mitochondria. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.42027143).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSTNM_003312.6 linkuse as main transcriptc.811G>A p.Val271Met missense_variant 3/3 ENST00000249042.8
TSTNM_001270483.1 linkuse as main transcriptc.811G>A p.Val271Met missense_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSTENST00000249042.8 linkuse as main transcriptc.811G>A p.Val271Met missense_variant 3/31 NM_003312.6 P1
TSTENST00000403892.7 linkuse as main transcriptc.811G>A p.Val271Met missense_variant 2/21 P1
TSTENST00000622841.1 linkuse as main transcriptc.811G>A p.Val271Met missense_variant 3/35 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
250526
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135672
show subpopulations
Gnomad AFR exome
AF:
0.0000619
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461230
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
726916
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.0000189
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152240
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
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 GeneticsAug 23, 2021The c.811G>A (p.V271M) alteration is located in exon 3 (coding exon 2) of the TST gene. This alteration results from a G to A substitution at nucleotide position 811, causing the valine (V) at amino acid position 271 to be replaced by a methionine (M). 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
0.58
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
13
DANN
Uncertain
1.0
DEOGEN2
Benign
0.11
T;T;T
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.15
N
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.42
T;T;T
MetaSVM
Benign
-0.47
T
MutationAssessor
Uncertain
2.6
M;M;M
MutationTaster
Benign
0.62
D;D
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.7
N;N;.
REVEL
Benign
0.13
Sift
Uncertain
0.0020
D;D;.
Sift4G
Uncertain
0.0040
D;D;D
Polyphen
0.93
P;P;P
Vest4
0.24
MutPred
0.78
Loss of catalytic residue at V271 (P = 0.1141);Loss of catalytic residue at V271 (P = 0.1141);Loss of catalytic residue at V271 (P = 0.1141);
MVP
0.095
MPC
0.97
ClinPred
0.60
D
GERP RS
0.38
Varity_R
0.21
gMVP
0.72

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: rs761288130; hg19: chr22-37407151; API