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Table 2 Nomenclature of PACAP and VIP receptors by IUPHAR

From: Discovery of PACAP and its receptors in the brain

IUPHAR nomenclature

Gene symbol (HGNC)

Gene name (HGNC)

Previous nomenclature

PAC1

ADCYAP1R1

ADCYAP receptor type I

PACAP typeI receptor [20]

PACAP receptor [21]

VPAC1

VIPR1

vasoactive intestinal peptide receptor 1

VIP receptor [27]

VIP-PACAP typeII receptor [29]

PVR2 [30]

VPAC2

VIPR2

vasoactive intestinal peptide receptor 2

VIP2 receptor [28]

PVR3 [30]

PACAPR-3 [32]

  1. Three PACAP receptors have been classified according to their relative affinity for PACAP and VIP