申请人:——
公开号:US20030032056A1
公开(公告)日:2003-02-13
The present invention relates to a method of identifying a polypeptide using a class of novel, water-stable reagents. More specifically, the method according to the invention comprises the steps of
(a) derivatization in an aqueous solution of the N-terminus of the polypeptide, or the N-termini of one or more peptides of the polypeptide, with at least one acidic reagent which comprises a sulfonyl moiety coupled to an activated acid moiety to provide one or more peptide derivatives;
(b) analyzing at least one such derivative using a mass spectrometric technique to provide a fragmentation pattern; and
(c) interpreting the fragmentation pattern.
Furthermore, the present invention also relates to a kit for identifying a polypeptide by a mass spectrometric technique, which kit comprises at least one acidic reagent comprising a sulfonyl moiety coupled to an activated acid moiety in a container together with suitable means for analysis of the fragmentation pattern obtained.
本发明涉及一种使用一类新型水稳定试剂鉴定多肽的方法。更具体地说,根据本发明的方法包括以下步骤
(a) 在水溶液中用至少一种酸性试剂对多肽的 N-末端或多肽的一个或多个肽的 N-末端进行衍生化,该试剂包括与活化的酸基偶联的磺酰基,以提供一个或多个肽衍生物;
(b) 使用质谱技术分析至少一种此类衍生物,以提供碎片模式;以及
(c) 解释碎片模式。
此外,本发明还涉及一种用于通过质谱技术鉴定多肽的试剂盒,该试剂盒包括至少一种酸性试剂,该试剂由与活化酸分子偶联的磺酰基组成,试剂盒装在一个容器中,并配有用于分析所获片段模式的适当装置。