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Mas-related GPCRs

Mas-related G-protein coupled receptor member D (MRGPRD) is expressed in the dorsal root ganglia, specifically in non-peptidergic, small-diameter, IB4+ C-fiber neurons that innervate the outer layers of the mammalian skin. They transmit polymodal nociceptive information from the skin epidermis to the substantia gelatinosa of the spinal cord.