Signaling peptide receptor is a type of receptor which binds one or more signaling peptides or signaling proteins. An example is the tropomyosin receptor kinase B (TrkB), which is bound and activated by the neurotrophic protein brain-derived neurotrophic factor (BDNF). Another example is the μ-opioid receptor (MOR), which is bound and activated by the opioid peptide hormone β-endorphin.

Adiponectin receptor

AdipoR1

AdipoR2

Angiotensin receptor

Bradykinin receptor

Calcitonin gene-related peptide receptor

Cholecystokinin receptor

CCKA

CCKB

Unsorted

Corticotropin-releasing hormone receptor

CRF1

CRF2

Cytokine receptor

Endothelin receptor

Galanin receptor

GAL1

GAL2

GAL3

Growth hormone secretagogue receptor

Growth hormone receptor

Growth-hormone-releasing hormone receptor

Glucagon-like peptide receptor

GLP-1

GLP-2

Others

Glucagon receptor

Gonadotropin-releasing hormone receptor

Gonadotropin receptor

Growth factor receptor

Insulin receptor

KiSS1-derived peptide receptor

Leptin receptor

Melanin-concentrating hormone receptor

MCH1

MCH2

Melanocortin receptor

Neuropeptide FF receptor

Neuropeptide S receptor

Neuropeptide Y receptor

Y1

Y2

Y4

Y5

Neurotensin receptor

NTS1

NTS2

Opioid receptor

Orexin receptor

Oxytocin receptor

Prolactin receptor

Parathyroid hormone receptor

Relaxin receptor

Somatostatin receptor

Tachykinin receptor

Thyrotropin-releasing hormone receptor

Thyrotropin receptor

Vasopressin receptor

Vasoactive intestinal peptide receptor and Pituitary adenylate cyclase-activating peptide

VIPR1

VIPR2

PAC1

Unsorted

Others