NM_018706.7:c.104C>T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_018706.7(DHTKD1):c.104C>T(p.Pro35Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000379 in 1,581,580 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 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

DHTKD1
NM_018706.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 3.60

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]

DHTKD1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2680999).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DHTKD1	NM_018706.7 link	c.104C>T	p.Pro35Leu	missense_variant	Exon 1 of 17	ENST00000263035.9	NP_061176.4	Q96HY7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DHTKD1	ENST00000263035.9 link	c.104C>T	p.Pro35Leu	missense_variant	Exon 1 of 17	1	NM_018706.7	ENSP00000263035.4		Q96HY7
DHTKD1	ENST00000437298.1 link	c.104C>T	p.Pro35Leu	missense_variant	Exon 1 of 5	3		ENSP00000388163.1		C9JWN1

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000322

AC:

AN:

186356

Hom.:

AF XY:

0.0000488

AC XY:

AN XY:

102530

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:

0.0000772

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000350

AC:

AN:

1429456

Hom.:

Cov.:

AF XY:

0.0000324

AC XY:

AN XY:

708882

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:

0.0000121

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000410

Gnomad4 OTH exome

AF:

0.0000677

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.0000172

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

2-aminoadipic 2-oxoadipic aciduria

Uncertain:2

Aug 07, 2018

Genomic Research Center, Shahid Beheshti University of Medical Sciences

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 35 of the DHTKD1 protein (p.Pro35Leu). This variant is present in population databases (rs753355529, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with DHTKD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 587471). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Inborn genetic diseases

Uncertain:1

Dec 01, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.104C>T (p.P35L) alteration is located in exon 1 (coding exon 1) of the DHTKD1 gene. This alteration results from a C to T substitution at nucleotide position 104, causing the proline (P) at amino acid position 35 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Feb 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.048

T;.

Eigen

Benign

0.15

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.027

MetaRNN

Benign

0.27

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.1

M;.

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-4.4

D;D

REVEL

Benign

0.13

Sift

Uncertain

0.0090

D;T

Sift4G

Uncertain

0.021

D;D

Polyphen

0.89

P;.

Vest4

0.54

MutPred

0.29

Loss of glycosylation at P35 (P = 0.0124);Loss of glycosylation at P35 (P = 0.0124);

MVP

0.37

MPC

0.37

ClinPred

0.86

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.44

gMVP

0.76

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over