Variant 19-48936100-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_014475.4(DHDH):c.271A>C(p.Lys91Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,459,256 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

DHDH
NM_014475.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.37

Variant links:

Genes affected

DHDH (HGNC:17887): (dihydrodiol dehydrogenase) This gene encodes an enzyme that belongs to the family of dihydrodiol dehydrogenases, which exist in multiple forms in mammalian tissues and are involved in the metabolism of xenobiotics and sugars. These enzymes catalyze the NADP1-linked oxidation of transdihydrodiols of aromatic hydrocarbons to corresponding catechols. This enzyme is a dimeric dihydrodiol dehydrogenase, and it differs from monomeric dihydrodiol dehydrogenases in its high substrate specificity for trans-dihydrodiols of aromatic hydrocarbons in the oxidative direction. [provided by RefSeq, Jul 2008]

DHDH links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.932

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DHDH	NM_014475.4 linkuse as main transcript	c.271A>C	p.Lys91Gln	missense_variant	3/7	ENST00000221403.7
DHDH	XM_017026598.2 linkuse as main transcript	c.22A>C	p.Lys8Gln	missense_variant	3/7
DHDH	XM_047438617.1 linkuse as main transcript	c.271A>C	p.Lys91Gln	missense_variant	3/5
DHDH	XM_005258748.5 linkuse as main transcript	c.30+989A>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
DHDH	ENST00000221403.7 linkuse as main transcript	c.271A>C	p.Lys91Gln	missense_variant	3/7	1	NM_014475.4	P1
DHDH	ENST00000522614.5 linkuse as main transcript	c.271A>C	p.Lys91Gln	missense_variant	3/5	5
DHDH	ENST00000523250.5 linkuse as main transcript	c.202+989A>C		intron_variant		5
DHDH	ENST00000520557.1 linkuse as main transcript	c.166+989A>C		intron_variant, NMD_transcript_variant		5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000411

AC:

AN:

243300

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132588

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000554

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1459256

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725812

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000825

AC:

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 submitter

clinical testing

Ambry Genetics

Nov 28, 2023

The c.271A>C (p.K91Q) alteration is located in exon 3 (coding exon 3) of the DHDH gene. This alteration results from a A to C substitution at nucleotide position 271, causing the lysine (K) at amino acid position 91 to be replaced by a glutamine (Q). 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

0.66

BayesDel_addAF

Benign

-0.016

BayesDel_noAF

Benign

-0.090

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Benign

0.30

T;.

Eigen

Pathogenic

0.92

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.85

D;D

M_CAP

Benign

0.025

MetaRNN

Pathogenic

0.93

D;D

MetaSVM

Uncertain

0.099

MutationAssessor

Pathogenic

4.8

H;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.81

PROVEAN

Uncertain

-3.9

D;D

REVEL

Uncertain

0.57

Sift

Uncertain

0.0040

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.81

MutPred

0.79

Loss of methylation at K91 (P = 0.0122);Loss of methylation at K91 (P = 0.0122);

MVP

0.56

MPC

0.62

ClinPred

0.99

GERP RS

4.9

Varity_R

0.90

gMVP

0.86

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.

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