chr19-48936149-G-A

Position:

chr19-48936149-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000221403.7(DHDH):c.320G>A(p.Arg107His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000292 in 1,607,706 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R107S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

DHDH
ENST00000221403.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.83

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12206733).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
DHDH	NM_014475.4 linkuse as main transcript	c.320G>A	p.Arg107His	missense_variant	3/7	ENST00000221403.7	NP_055290.1
DHDH	XM_017026598.2 linkuse as main transcript	c.71G>A	p.Arg24His	missense_variant	3/7		XP_016882087.1
DHDH	XM_047438617.1 linkuse as main transcript	c.320G>A	p.Arg107His	missense_variant	3/5		XP_047294573.1
DHDH	XM_005258748.5 linkuse as main transcript	c.30+1038G>A		intron_variant			XP_005258805.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
DHDH	ENST00000221403.7 linkuse as main transcript	c.320G>A	p.Arg107His	missense_variant	3/7	1	NM_014475.4	ENSP00000221403	P1
DHDH	ENST00000522614.5 linkuse as main transcript	c.320G>A	p.Arg107His	missense_variant	3/5	5		ENSP00000428672
DHDH	ENST00000523250.5 linkuse as main transcript	c.202+1038G>A		intron_variant		5		ENSP00000428935
DHDH	ENST00000520557.1 linkuse as main transcript	c.166+1038G>A		intron_variant, NMD_transcript_variant		5		ENSP00000430360

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152228

Hom.:

Cov.:

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000415

AC:

AN:

240710

Hom.:

AF XY:

0.00000761

AC XY:

AN XY:

131354

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:

0.00000919

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000282

AC:

AN:

1455478

Hom.:

Cov.:

AF XY:

0.0000221

AC XY:

AN XY:

723540

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:

0.0000197

Gnomad4 NFE exome

AF:

0.0000342

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74356

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:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000569

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.00000826

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

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

Mar 21, 2023

The c.320G>A (p.R107H) alteration is located in exon 3 (coding exon 3) of the DHDH gene. This alteration results from a G to A substitution at nucleotide position 320, causing the arginine (R) at amino acid position 107 to be replaced by a histidine (H). 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

Benign

0.15

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.099

T;.

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.047

LIST_S2

Benign

0.67

T;T

M_CAP

Benign

0.0017

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

M;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-2.7

D;D

REVEL

Benign

0.067

Sift

Benign

0.047

D;D

Sift4G

Benign

0.073

T;T

Polyphen

0.17

B;.

Vest4

0.20

MVP

0.13

MPC

0.17

ClinPred

0.50

GERP RS

1.7

Varity_R

0.28

gMVP

0.35

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