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1.
公开(公告)号:US6156520A
公开(公告)日:2000-12-05
申请号:US911762
申请日:1997-08-15
CPC分类号: C40B30/04 , C12Q1/25 , G01N33/54313 , G01N33/6845 , G01N33/6869 , G01N2500/00
摘要: The present invention encompasses polypeptides that comprise a chemokine receptor binding sequence and are useful in determining the affinity of a compound for a chemokine receptor. Substitution of one of the amino acids of the C-terminal region of the polypeptide with a cysteine enables the polypeptide to be detectably labelled without loss of receptor binding activity and without the problems inherent in radioiodine labelling. Methods for use of the polypeptides in competitive binding assays are also disclosed.
摘要翻译: 本发明包括包含趋化因子受体结合序列并可用于测定化合物对趋化因子受体的亲和力的多肽。 用半胱氨酸取代多肽的C-末端区域的氨基酸之一使得能够可检测地标记多肽,而不损失受体结合活性,而没有放射性碘标记固有的问题。 还公开了在竞争性结合测定中使用多肽的方法。