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GeneBe

10-12069035-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1

The NM_018706.7(DHTKD1):c.2T>G(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,064 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

DHTKD1
NM_018706.7 start_lost

Scores

1
4
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.12
Variant links:
Genes affected
DHTKD1 (HGNC:23537): (dehydrogenase E1 and transketolase domain containing 1) This gene encodes a component of a mitochondrial 2-oxoglutarate-dehydrogenase-complex-like protein involved in the degradation pathways of several amino acids, including lysine. Mutations in this gene are associated with 2-aminoadipic 2-oxoadipic aciduria and Charcot-Marie-Tooth Disease Type 2Q. [provided by RefSeq, May 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Start lost variant, no new inframe start found.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DHTKD1NM_018706.7 linkuse as main transcriptc.2T>G p.Met1? start_lost 1/17 ENST00000263035.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DHTKD1ENST00000263035.9 linkuse as main transcriptc.2T>G p.Met1? start_lost 1/171 NM_018706.7 P1
DHTKD1ENST00000437298.1 linkuse as main transcriptc.2T>G p.Met1? start_lost 1/53

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000121
AC:
3
AN:
247212
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134642
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:
0.0000270
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1460862
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
726770
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000580
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

2-aminoadipic 2-oxoadipic aciduria Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeOct 09, 2023This sequence change affects the initiator methionine of the DHTKD1 mRNA. The next in-frame methionine is located at codon 108. This variant is present in population databases (rs760903542, gnomAD 0.003%). Disruption of the initiator codon has been observed in individual(s) with 2-aminoadipic 2-oxoadipic aciduria (PMID: 23141293). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Benign
-0.15
Cadd
Benign
22
Dann
Benign
0.95
DEOGEN2
Benign
0.0015
T;.
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.20
FATHMM_MKL
Benign
0.75
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Uncertain
0.22
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Benign
-0.89
T
MutationTaster
Benign
1.0
D
PROVEAN
Benign
-0.57
N;N
REVEL
Benign
0.22
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.012
D;D
Polyphen
0.089
B;.
Vest4
0.90
MVP
0.16
ClinPred
0.99
D
GERP RS
2.8
Varity_R
0.96
gMVP
0.87

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: rs760903542; hg19: chr10-12111034; API