Table 1 List of 23 GPCRs included in this study.

Listed are the common abbreviations of each GPCR, GPCR family designation, and engineered epitope tag on the N-terminal and C-terminal tails. GPCRs are listed in alphabetical order. Secretin family receptors are shown in bold. Y, yes; N, no.

GPCRAbbreviationGPCR familyN-terminal HA epitope tagC-terminal 1D4 epitope tag
Atypical chemokine receptor
3/C-X-C chemokine receptor 7
ACKR3/CXCR7RhodopsinYY
Pituitary adenylate
cyclase-activating
polypeptide type 1
ADCYAP1R1SecretinYY
Adhesion G protein–coupled
receptor F5
ADGRF5AdhesionYY
Calcitonin receptor-like
receptor
CALCRLSecretinYY
Calcitonin receptorCALCRSecretinYY
C-C chemokine receptor
type 5
CCR5RhodopsinNY
C-C chemokine receptor
type 7
CCR7RhodopsinNY
Corticotropin-releasing
hormone receptor 1
CRHR1SecretinYY
Cortocotropin-releasing
hormone receptor 2
CRHR2SecretinYY
C-X-C chemokine receptor
type 3
CXCR3RhodopsinYN
C-X-C chemokine receptor
type 4
CXCR4RhodopsinNY
Gastric inhibitory
polypeptide receptor
GIPRSecretinYY
Glucagon receptorGCGRSecretinYY
Growth hormone releasing
hormone
GHRHRSecretinYY
Glucagon-like receptor 1GLP1RSecretinYY
Glucagon-like receptor 2GLP2RSecretinYY
G protein–coupled receptor 4GPR4RhodopsinYN
G protein–coupled receptor 182GPR182RhodopsinYN
Parathyroid hormone
receptor 1
PTH1RSecretinYY
Parathryoid hormone
receptor 2
PTH2RSecretinYY
Secretin receptorSCTRSecretinYY
VIP and PACAP receptor 1VIPR1SecretinYY
VIP and PACAP receptor 2VIPR2SecretinYY