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rs782092363

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP3_ModeratePP5

The NM_001064.4(TKT):c.952C>T(p.Arg318Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000341 in 1,614,076 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 Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

TKT
NM_001064.4 missense

Scores

11
6
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 3.13
Variant links:
Genes affected
TKT (HGNC:11834): (transketolase) This gene encodes a thiamine-dependent enzyme which plays a role in the channeling of excess sugar phosphates to glycolysis in the pentose phosphate pathway. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a binding_site (size 0) in uniprot entity TKT_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.898
PP5
Variant 3-53230612-G-A is Pathogenic according to our data. Variant chr3-53230612-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 223091.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TKTNM_001064.4 linkuse as main transcriptc.952C>T p.Arg318Cys missense_variant 8/14 ENST00000462138.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TKTENST00000462138.6 linkuse as main transcriptc.952C>T p.Arg318Cys missense_variant 8/141 NM_001064.4 P3P29401-1

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152224
Hom.:
0
Cov.:
34
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
250596
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135586
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.0000442
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000342
AC:
50
AN:
1461852
Hom.:
0
Cov.:
32
AF XY:
0.0000358
AC XY:
26
AN XY:
727236
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000423
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152224
Hom.:
0
Cov.:
34
AF XY:
0.0000403
AC XY:
3
AN XY:
74370
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000889
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Transketolase deficiency Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJul 20, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.35
Cadd
Pathogenic
33
Dann
Uncertain
1.0
DEOGEN2
Pathogenic
0.93
D;D;.;D
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Pathogenic
0.36
D
MetaRNN
Pathogenic
0.90
D;D;D;D
MetaSVM
Pathogenic
0.91
D
MutationAssessor
Pathogenic
3.9
H;H;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-6.9
D;D;D;.
REVEL
Pathogenic
0.81
Sift
Uncertain
0.0070
D;D;D;.
Sift4G
Uncertain
0.010
D;D;D;D
Polyphen
0.95
P;P;.;.
Vest4
0.76
MVP
0.98
MPC
0.98
ClinPred
0.96
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.93
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs782092363; hg19: chr3-53264628; API