rs1124493
This is a coding sequence variant variant in the DRD2 gene.
▶ClinVar annotation
▶Research that mentions this SNP (1)
▶Influence of ANKK1 and DRD2 polymorphisms in response to haloperidolAssociationN=88Ina Giegling et al.(2013)· European Archives of Psychiatry and Clinical Neuroscience
This study investigated whether 9 ANKK1 and 27 DRD2 SNPs predict haloperidol efficacy and tolerability in 88 acutely psychotic patients. rs2242592 in ANKK1 (p=0.008) and rs1124493 in DRD2 (p=0.001) were significantly associated with improved clinical response on PANSS scores. Three haplotype blocks (one in ANKK1, two in DRD2) were also associated with better clinical improvement. Results showed partial replication in the CATIE schizophrenia sample, with rs11604671 (in LD with rs2242592) associated with response, suggesting ANKK1 and DRD2 variability influences haloperidol response though further validation is needed.
About DRD2
This gene encodes the D2 subtype of the dopamine receptor. This G-protein coupled receptor inhibits adenylyl cyclase activity. A missense mutation in this gene causes myoclonus dystonia; other mutations have been associated with schizophrenia. Alternative splicing of this gene results in two transcript variants encoding different isoforms. A third variant has been described, but it has not been determined whether this form is normal or due to aberrant splicing. [provided by RefSeq, Jul 2008]
View all DRD2 variants →Gene information from NCBI Gene. Variant classifications from ClinVar.
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