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chr22-37024382-G-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 1P and 10B. PP3BP4_StrongBP6_ModerateBS2

The NM_021126.8(MPST):​c.227G>T​(p.Gly76Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00419 in 1,544,770 control chromosomes in the GnomAD database, including 29 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0044 ( 29 hom. )

Consequence

MPST
NM_021126.8 missense

Scores

10
4
3

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.73
Variant links:
Genes affected
MPST (HGNC:7223): (mercaptopyruvate sulfurtransferase) This protein encoded by this gene catalyzes the transfer of a sulfur ion from 3-mercaptopyruvate to cyanide or other thiol compounds. It may be involved in cysteine degradation and cyanide detoxification. There is confusion in literature between this protein (mercaptopyruvate sulfurtransferase, MPST), which appears to be cytoplasmic, and thiosulfate sulfurtransferase (rhodanese, TST, GeneID:7263), which is a mitochondrial protein. Deficiency in MPST activity has been implicated in a rare inheritable disorder known as mercaptolactate-cysteine disulfiduria (MCDU). Alternatively spliced transcript variants encoding same or different isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PP3
Multiple lines of computational evidence support a deleterious effect 8: AlphaMissense, BayesDel_noAF, Cadd, Eigen, MutationAssessor, phyloP100way_vertebrate, PROVEAN, REVEL [when max_spliceai, FATHMM_MKL, MetaRNN, MutationTaster was below the threshold]
BP4
Computational evidence support a benign effect (MetaRNN=0.025369227).
BP6
Variant 22-37024382-G-T is Benign according to our data. Variant chr22-37024382-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 3037468.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 29 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MPSTNM_021126.8 linkuse as main transcriptc.227G>T p.Gly76Val missense_variant 2/3 ENST00000429360.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MPSTENST00000429360.6 linkuse as main transcriptc.227G>T p.Gly76Val missense_variant 2/31 NM_021126.8 P25325-2

Frequencies

GnomAD3 genomes
AF:
0.00261
AC:
398
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000892
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00150
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00104
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00470
Gnomad OTH
AF:
0.00334
GnomAD3 exomes
AF:
0.00194
AC:
278
AN:
143196
Hom.:
1
AF XY:
0.00200
AC XY:
156
AN XY:
78050
show subpopulations
Gnomad AFR exome
AF:
0.000656
Gnomad AMR exome
AF:
0.000998
Gnomad ASJ exome
AF:
0.000128
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000911
Gnomad FIN exome
AF:
0.000848
Gnomad NFE exome
AF:
0.00424
Gnomad OTH exome
AF:
0.00170
GnomAD4 exome
AF:
0.00436
AC:
6074
AN:
1392430
Hom.:
29
Cov.:
31
AF XY:
0.00423
AC XY:
2904
AN XY:
687126
show subpopulations
Gnomad4 AFR exome
AF:
0.000640
Gnomad4 AMR exome
AF:
0.00110
Gnomad4 ASJ exome
AF:
0.000282
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000381
Gnomad4 FIN exome
AF:
0.000725
Gnomad4 NFE exome
AF:
0.00537
Gnomad4 OTH exome
AF:
0.00328
GnomAD4 genome
AF:
0.00261
AC:
398
AN:
152340
Hom.:
0
Cov.:
33
AF XY:
0.00250
AC XY:
186
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.000890
Gnomad4 AMR
AF:
0.00150
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00104
Gnomad4 NFE
AF:
0.00471
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00399
Hom.:
2
Bravo
AF:
0.00274
TwinsUK
AF:
0.00297
AC:
11
ALSPAC
AF:
0.00519
AC:
20
ESP6500AA
AF:
0.000707
AC:
3
ESP6500EA
AF:
0.00349
AC:
29
ExAC
AF:
0.000933
AC:
106

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

MPST-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJan 12, 2023This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.61
BayesDel_addAF
Uncertain
0.049
T
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.33
T;T;T;.;.;T;.
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.96
FATHMM_MKL
Pathogenic
0.97
D
MetaRNN
Benign
0.025
T;T;T;T;T;T;T
MetaSVM
Uncertain
0.64
D
MutationAssessor
Pathogenic
4.9
H;H;H;.;.;H;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-8.7
D;D;D;.;D;D;.
REVEL
Pathogenic
0.72
Sift
Pathogenic
0.0
D;D;D;.;D;D;.
Sift4G
Pathogenic
0.0010
D;D;D;D;D;D;D
Polyphen
1.0
D;D;D;.;D;D;D
Vest4
0.86
MVP
0.91
ClinPred
0.58
D
GERP RS
5.5
Varity_R
0.99
gMVP
0.82

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: rs201058049; hg19: chr22-37420423; COSMIC: COSV50765036; COSMIC: COSV50765036; API