rs77576840

Positions:

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_000787.4(DBH):c.342C>A(p.Asp114Glu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000621 in 1,609,880 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 (★). Synonymous variant affecting the same amino acid position (i.e. D114D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

DBH
NM_000787.4 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1O:1

Conservation

PhyloP100: -0.315

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.991

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DBH	NM_000787.4 linkuse as main transcript	c.342C>A	p.Asp114Glu	missense_variant, splice_region_variant	2/12	ENST00000393056.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DBH	ENST00000393056.8 linkuse as main transcript	c.342C>A	p.Asp114Glu	missense_variant, splice_region_variant	2/12	1	NM_000787.4	P1
DBH	ENST00000263611.3 linkuse as main transcript	c.334-2359C>A		intron_variant		2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000821

AC:

AN:

243546

Hom.:

AF XY:

0.00000758

AC XY:

AN XY:

132000

show subpopulations

Gnomad AFR exome

AF:

0.0000650

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:

0.00000911

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000617

AC:

AN:

1457692

Hom.:

Cov.:

AF XY:

0.00000828

AC XY:

AN XY:

724802

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:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74344

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:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:1Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Orthostatic hypotension 1

Pathogenic:1Uncertain:1Other:1

Pathogenic, no assertion criteria provided	literature only	OMIM	Mar 01, 2002	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Nov 14, 2020	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. Experimental studies have shown that this variant affects DBH protein function (PMID: 21209083). This variant has been observed in individual(s) with dopamine beta-hydroxylase deficiency (PMID: 11857564). In at least one individual the data is consistent with the variant being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 1751). This variant is present in population databases (rs77576840, ExAC 0.01%). This sequence change replaces aspartic acid with glutamic acid at codon 114 of the DBH protein (p.Asp114Glu). The aspartic acid residue is highly conserved and there is a small physicochemical difference between aspartic acid and glutamic acid. -
not provided, no classification provided	literature only	GeneReviews	-	Abnormal protein retained in cell, suggesting abnormal trafficking & secretion [Kim et al 2011] -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.91

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.24

CADD

Benign

1.4

DANN

Benign

0.97

DEOGEN2

Pathogenic

0.97

Eigen

Benign

-0.90

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.38

LIST_S2

Uncertain

0.86

M_CAP

Pathogenic

0.38

MetaRNN

Pathogenic

0.99

MetaSVM

Pathogenic

0.90

MutationAssessor

Pathogenic

3.5

MutationTaster

Benign

0.99

PrimateAI

Uncertain

0.55

PROVEAN

Uncertain

-3.7

REVEL

Uncertain

0.62

Sift

Uncertain

0.0050

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.98

MutPred

0.97

Gain of phosphorylation at Y111 (P = 0.0728);

MVP

0.61

MPC

0.36

ClinPred

0.82

GERP RS

-10

Varity_R

0.96

gMVP

0.92

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.29

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.29

Position offset: 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