申请人:Glythera Limited
公开号:EP2886132A1
公开(公告)日:2015-06-24
Reagents and methods for functionalising polypeptides with moieties poly(alkylene glycol) molecules and glycan groups are disclosed that are based on a functionalising reagent which comprises a nitrogen containing heterocyclic aromatic ring having a vinyl substituent that is capable of reacting with one or more thiol groups that are naturally present, or have been introduced into, the polypeptide, for example by employing a thiol group of one or more cysteine residues. The functionalising reagent is covalently linked to a poly(alkylene glycol) molecule, such as a polyethylene glycol (PEG) molecule, or a glycan group so that the reaction between the vinyl group and the thiol group in the polypeptide covalently links the polypeptide to the poly(alkylene glycol) molecule and/or the glycan group.
本发明公开了用聚(烷二醇)分子和聚糖基团使多肽功能化的试剂和方法,这些试剂和方法基于一种功能化试剂,该试剂包括一个含氮杂环芳香环,该芳香环具有乙烯基取代基,能够与多肽中天然存在或引入的一个或多个硫醇基反应,例如通过使用一个或多个半胱氨酸残基的硫醇基。官能化试剂与聚(烷二醇)分子(如聚乙二醇(PEG)分子)或聚糖基团共价连接,使乙烯基与多肽中的硫醇基团反应,将多肽与聚(烷二醇)分子和/或聚糖基团共价连接。