The invention provides isolated polypeptides that stimulate gastrointestinal smooth muscle contraction, including human prokineticin 1 and human prokineticin 2 polypeptides, and functional fragments and modifications thereof. Also provided are methods of stimulating gastrointestinal smooth muscle contraction in a mammal, by administering to the mammal an effective amount of a prokineticin polypeptide. The invention also provides nucleic acid molecules encoding a prokineticin polypeptide, and antibodies that selectively bind a prokineticin polypeptide. Further provided are methods of identifying a prokineticin receptor ligand, agonist or antagonist.
本发明提供了刺激胃肠道平滑肌收缩的分离
多肽,包括人促激肽 1 和人促激肽 2
多肽及其功能片段和修饰。本发明还提供了通过向哺乳动物施用有效量的促激肽
多肽来刺激哺乳动物胃肠道平滑肌收缩的方法。本发明还提供了编码促激肽
多肽的核酸分子,以及选择性结合促激肽
多肽的
抗体。本发明还提供了鉴定促红细胞生成素受体
配体、激动剂或拮抗剂的方法。