Bombesin Receptors

Bombesin receptor agonists and antagonists act on three related G protein-coupled receptors (GPCRs). Bombesin is a 14-amino-acid peptide first isolated from frog skin and is listed here itself. Its mammalian relatives, gastrin-releasing peptide (GRP) and neuromedin B (NMB), bind the GRP receptor (GRPR, BB2) and the NMB receptor (NMBR, BB1). Bombesin receptor subtype 3 (BRS-3, BB3) is an orphan receptor, and mice lacking it develop obesity and metabolic defects. Spinal GRPR mediates itch signaling, and many tumor cell types express GRPR. Listed ligands include the GRPR antagonist RC-3095, the BB1/BB2 antagonist PD176252, the BRS-3 agonist MK-5046 and the BRS-3 antagonist ML-18.

3 Items

  • [Tyr4]-Bombesin
    Cat. No.
    A59102

    [Tyr4]-Bombesin

    [Tyr4]-Bombesin is a selective ligand for the gastrin-releasing peptide receptor (GRPR), a critical target in oncology research. This analogue of Bombesin demonstrates significant biological activity, promoting GRPR-mediated signaling pathways. It is valuable for studying tumor metabolism, neuroendocrine functions, and the role of GRPR in cancer progression. Researchers can utilize [Tyr4]-Bombesin to explore GRPR-targeted therapies and diagnostic imaging in cancer studies.

    1 mg
    $80.00
    5 mg
    $205.00
    All 3 sizes
  • GRP (14-27) (human, porcine, canine)
    Cat. No.
    A59114

    GRP (14-27) (human, porcine, canine)

    GRP (14-27) is a bombesin receptor ligand derived from human, porcine, and canine sources. This peptide displays specific binding properties to bombesin receptors, which is inhibited by guanosine triphosphate (GTP) and guanosine diphosphate (GDP), indicating a competitive mechanism of action. GRP (14-27) is useful in research applications focused on neuropeptide signaling and receptor interactions.

    Out of stock

    All 3 sizes
  • AMBA
    Cat. No.
    A59115

    AMBA

    AMBA is a selective ligand for the gastrin-releasing peptide receptor (GRPR), exhibiting a human IC50 of 0.82 nM and a human Ki of 0.65 nM. With high affinity and specificity for GRPR, AMBA facilitates receptor-mediated endocytosis, allowing for the retention of attached radiometals within target cells. This reagent is particularly relevant in the study of prostate cancer, providing valuable insights into receptor-targeted therapies.

    Out of stock

    All 3 sizes

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