申请人:——
公开号:US20020127652A1
公开(公告)日:2002-09-12
Heterodimeric polypeptide conjugates exhibiting FSH activity, comprising a dimeric polypeptide comprising an FSH-&agr; subunit and an FSH-&bgr; subunit, wherein at least one of the FSH-&agr; and FSH-&bgr; subunits differs from the corresponding wildtype subunit in that at least one amino acid residue acid residue comprising an attachment group for a non-polypeptide moiety has been introduced or removed, and having at least one non-polypeptide moiety bound to an attachment group of at least one of said subunits are provided. Preferably, at least one attachment group, e.g., an N- or O-glycosylation site or an attachment site for a polymer molecule such as polyethylene glycol, has been introduced, e.g., at an N-terminal. The polypeptide conjugates exhibit improved properties, in particular an increased half-life, compared to human FSH.
显示 FSH 活性的异源二聚体多肽共轭物,包括由 FSH-&agr; 亚基和 FSH-&bgr; 亚基组成的二聚体多肽,其中 FSH-&agr; 亚基和 FSH-&bgr; 亚基中至少有一个与相应的野生型亚基不同,即至少有一个包含非多肽分子连接基团的氨基酸残基被引入或移除,并具有至少一个非多肽分子连接基团;亚基与相应野生型亚基的不同之处在于,引入或移除了至少一个包含非多肽分子连接基团的氨基酸残基,并且至少有一个非多肽分子与至少一个所述亚基的连接基团结合。最好引入至少一个连接基团,如 N 或 O-糖基化位点或聚合物分子如聚乙二醇的连接位点,如在 N 端。与人 FSH 相比,多肽共轭物的性能有所改善,特别是半衰期延长。