DRD5(redirected from DRD1B)
DRD5A gene on chromosome 4p16.1 that encodes G protein-coupled dopamine receptor D5, which stimulates adenylyl cyclase. D5 receptor is expressed in neurons in the limbic regions of the brain, and it has a 10-fold greater affinity for dopamine than D1 receptor.
Defects in DRD5 cause benign essential blepharospasm.
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