chr9-133649417-T-G

Variant names:

• chr9-133649417-T-G
• rs7876027
• NM_000787.4:c.1191+1405T>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000787.4(DBH):​c.1191+1405T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0996 in 152,118 control chromosomes in the GnomAD database, including 1,790 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.10 (1790 hom., cov: 33)
• Consequence: DBH NM_000787.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.49
• Publications: 2 publications found

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 Gene-Disease associations (from GenCC):

• orthostatic hypotension 1

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.282 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000787.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DBH	NM_000787.4	MANE Select	c.1191+1405T>G		intron	N/A	NP_000778.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DBH	ENST00000393056.8	TSL:1 MANE Select	c.1191+1405T>G		intron	N/A	ENSP00000376776.2

Frequencies

GnomAD3 genomes AF: 0.0993 AC: 15094 AN: 152000 Hom.: 1783 Cov.: 33

Gnomad AFR AF: 0.286

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0509

Gnomad ASJ AF: 0.0874

Gnomad EAS AF: 0.000964

Gnomad SAS AF: 0.0512

Gnomad FIN AF: 0.0211

Gnomad MID AF: 0.0665

Gnomad NFE AF: 0.0226

Gnomad OTH AF: 0.0755

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0996 AC: 15144 AN: 152118 Hom.: 1790 Cov.: 33 AF XY: 0.0960 AC XY: 7138 AN XY: 74356

African (AFR) AF: 0.286 AC: 11869 AN: 41466

American (AMR) AF: 0.0508 AC: 776 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.0874 AC: 303 AN: 3468

East Asian (EAS) AF: 0.000966 AC: 5 AN: 5174

South Asian (SAS) AF: 0.0518 AC: 250 AN: 4822

European-Finnish (FIN) AF: 0.0211 AC: 224 AN: 10600

Middle Eastern (MID) AF: 0.0714 AC: 21 AN: 294

European-Non Finnish (NFE) AF: 0.0226 AC: 1537 AN: 67986

Other (OTH) AF: 0.0751 AC: 159 AN: 2116

Alfa AF: 0.0544 Hom.: 1945

Bravo AF: 0.111

Asia WGS AF: 0.0470 AC: 162 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.046
DANN	Benign	0.43
PhyloP100		-3.5
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs7876027; hg19: chr9-136514539; COSMIC: COSV67548949;