9-133656532-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_000787.4(DBH):c.1444G>A(p.Gly482Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00255 in 1,613,898 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0018 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0026 ( 9 hom. )

Consequence

DBH
NM_000787.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 3.29

Variant links:

Genes affected

DBH (HGNC:2689): (dopamine beta-hydroxylase) The protein encoded by this gene is an oxidoreductase belonging to the copper type II, ascorbate-dependent monooxygenase family. The encoded protein, expressed in neuroscretory vesicles and chromaffin granules of the adrenal medulla, catalyzes the conversion of dopamine to norepinephrine, which functions as both a hormone and as the main neurotransmitter of the sympathetic nervous system. The enzyme encoded by this gene exists exists in both soluble and membrane-bound forms, depending on the absence or presence, respectively, of a signal peptide. Mutations in this gene cause dopamine beta-hydroxylate deficiency in human patients, characterized by deficits in autonomic and cardiovascular function, including hypotension and ptosis. Polymorphisms in this gene may play a role in a variety of psychiatric disorders. [provided by RefSeq, Aug 2017]

DBH links:

DBH-AS1 (HGNC:24155): (DBH antisense RNA 1)

DBH-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22667518).

BP6

Variant 9-133656532-G-A is Benign according to our data. Variant chr9-133656532-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 529773.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00177 (269/152290) while in subpopulation NFE AF= 0.00338 (230/68018). AF 95% confidence interval is 0.00302. There are 0 homozygotes in gnomad4. There are 111 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 9 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DBH	NM_000787.4 link	c.1444G>A	p.Gly482Arg	missense_variant	Exon 10 of 12	ENST00000393056.8	NP_000778.3	P09172
DBH-AS1	NR_102735.1 link	n.288C>T		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DBH	ENST00000393056.8 link	c.1444G>A	p.Gly482Arg	missense_variant	Exon 10 of 12	1	NM_000787.4	ENSP00000376776.2		P09172
DBH-AS1	ENST00000425189.1 link	n.193C>T		non_coding_transcript_exon_variant	Exon 2 of 2	1

Frequencies

GnomAD3 genomes

AF:

0.00177

AC:

269

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000627

Gnomad AMI

AF:

0.00219

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.000377

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00338

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00155

AC:

388

AN:

250774

Hom.:

AF XY:

0.00152

AC XY:

206

AN XY:

135714

show subpopulations

Gnomad AFR exome

AF:

0.000493

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000392

Gnomad FIN exome

AF:

0.000465

Gnomad NFE exome

AF:

0.00301

Gnomad OTH exome

AF:

0.000817

GnomAD4 exome

AF:

0.00263

AC:

3842

AN:

1461608

Hom.:

Cov.:

AF XY:

0.00256

AC XY:

1858

AN XY:

727100

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000406

Gnomad4 FIN exome

AF:

0.000376

Gnomad4 NFE exome

AF:

0.00325

Gnomad4 OTH exome

AF:

0.00220

GnomAD4 genome

AF:

0.00177

AC:

269

AN:

152290

Hom.:

Cov.:

AF XY:

0.00149

AC XY:

111

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.000626

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.000377

Gnomad4 NFE

AF:

0.00338

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00274

Hom.:

Bravo

AF:

0.00179

TwinsUK

AF:

0.00351

AC:

ALSPAC

AF:

0.00337

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00279

AC:

ExAC

AF:

0.00169

AC:

205

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Orthostatic hypotension 1

Uncertain:1Benign:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Jan 21, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Uncertain:1

Sep 02, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 25450229, 22028891) -

DBH-related disorder

Benign:1

Mar 14, 2022

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.40

BayesDel_addAF

Benign

-0.079

BayesDel_noAF

Uncertain

0.11

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.76

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.79

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.23

MetaSVM

Uncertain

-0.0046

MutationAssessor

Pathogenic

3.3

PrimateAI

Uncertain

0.54

PROVEAN

Uncertain

-4.2

REVEL

Pathogenic

0.69

Sift

Uncertain

0.0040

Sift4G

Benign

0.12

Polyphen

0.94

Vest4

0.86

MutPred

0.68

Loss of glycosylation at T477 (P = 0.1173);

MVP

0.82

MPC

0.39

ClinPred

0.072

GERP RS

3.5

Varity_R

0.70

gMVP

0.92

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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