rs1108580

This is a splice region variant variant in the DBH gene.

GWAS Catalog Trait Associations (1)

Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.

serpin I2 measurement

Allele G
OR 0.03
p 2.0e-14
N 47,745
Large GWAS
European

ClinVar annotation

Benign★★★
7 submitters2 publications

Orthostatic hypotension 1 (ORTHYP1); not specified

View on ClinVar →

Research that mentions this SNP (4)

Association of RANBP1 haplotype with smooth pursuit eye movement abnormality
ReviewHyun Sub Cheong et al.(2011)· American Journal of Medical Genetics Part B: Neuropsychiatric Genetics

This comprehensive review examines the genomics of schizophrenia and pharmacogenomics of antipsychotic drugs, synthesizing evidence on over 200 genes associated with psychotic disorders. The authors discuss five categories of genes relevant to antipsychotic response: disease-associated genes, mechanism-of-action genes, drug metabolism genes (particularly CYP2D6, CYP2C19, CYP2C9, CYP3A4), drug transporter genes, and pleiotropic genes. The review details pharmacogenomic profiles of 20+ antipsychotic drugs and demonstrates significant ethnic and interindividual variation in drug metabolism phenotypes, with examples including CYP2D6 extensive metabolizers (55.71% of population), intermediate metabolizers (34.7%), poor metabolizers (2.28%), and ultra-rapid metabolizers (7.31%).

Traits studied:Alzheimer diseaseAntipsychotic drug responseAntipsychotic drug side effectsAnxiety disordersBipolar disorderCNS disordersDepressive disorderParkinson's diseasePsychotic disordersSchizoaffective disorderSchizophreniaTardive dyskinesiaVascular dementia
Influence of NOS1 on Verbal Intelligence and Working Memory in Both Patients With Schizophrenia and Healthy Control Subjects
ReviewGary Donohoe et al.(2009)· Archives of General Psychiatry

This comprehensive review synthesizes genomic and pharmacogenomic research in schizophrenia, discussing over 200 candidate genes associated with psychotic disorders, genetic mechanisms including copy number variants and microRNA alterations, and pharmacogenomic factors affecting antipsychotic efficacy and safety. Key genes covered include dopamine receptors (DRD1-5), dysbindin (DTNBP1), DISC1, neurotrophic factors, and metabolic enzymes such as CYP2D6, CYP3A4, and COMT, with emphasis on genotype-phenotype correlations in antipsychotic response and side effects.

Traits studied:Antipsychotic drug response and efficacyAntipsychotic drug safety and side effectsAttention-deficit hyperactivity disorderAutismBipolar disorderCognitive function in schizophreniaMajor depressive disorderMental retardationObsessive-compulsive disorderParkinson's diseasePsychotic disordersSchizophreniaTardive dyskinesia
Candidate gene studies of ADHD: a meta-analytic review
Meta-analysisIan R. Gizer et al.(2009)· Human Genetics

Meta-analytic review of candidate gene studies for childhood ADHD examining 19 genes. Significant associations identified for DAT1 (3' UTR VNTR: OR=1.12, p=0.028; rs27072: OR=1.20, p=0.006), DRD4 (exon 3 VNTR: OR=1.33, p=0.00007; rs1800955: OR=1.21, p=0.007), DRD5, 5HTT, HTR1B (rs6296: OR=1.11, p=0.010), and SNAP25 (rs3746544: OR=1.15, p=0.030).

Traits studied:Attention-deficit/hyperactivity disorderChildhood ADHD
SNPs in dopamine D2 receptor gene (DRD2) and norepinephrine transporter gene (NET) are associated with continuous performance task (CPT) phenotypes in ADHD children and their families
AssociationN=364Kollins SH et al.(2008)· American Journal of Medical Genetics Part B: Neuropsychiatric Genetics

Haplotype-tagging SNP analysis in 364 individuals from 152 ADHD families identified significant associations between commission errors and SNPs in the DRD2 gene (rs2075654, rs1079596) and between reaction time variability and a SNP in the NET gene (rs3785155). These findings suggest that commission errors and reaction time variability are valid ADHD endophenotypes linked to dopaminergic and noradrenergic pathways.

Traits studied:ADHDCommission errors (Continuous Performance Task)Detectability (CPT)Hit reaction timeHit reaction time standard errorReaction time variability (Continuous Performance Task)

About DBH

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]

View all DBH variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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