收稿日期: 2010-01-04
修回日期: 2010-06-01
网络出版日期: 2010-12-25
基金资助
中国博士后基金资助项目(2004036497); 广东省科技计划项目(2005B33001008)
Purification and Structure Identification of Phytohemagglutinin-L4
Received date: 2010-01-04
Revised date: 2010-06-01
Online published: 2010-12-25
Supported by
中国博士后基金资助项目(2004036497); 广东省科技计划项目(2005B33001008)
张晓元 郭勇 吴晖 赵起 黄敏 . PHA-L4的纯化及结构分析[J]. 华南理工大学学报(自然科学版), 2010 , 38(12) : 145 -150 . DOI: 10.3969/j.issn.1000-565X.2010.12.028
Mitogenetic glycoprotein PHA-L4 with high activity was obtained from phytohemagglutinin(PHA) after the separation and purification by means of anion exchange chromatography and biological activity inspection.The structure of the product was then identified by means of SDS-PAGE,mass spectrometry,N-terminal sequencing measurement and peptide mass fingerprint.The results indicate that PHA-L4 is a kind of glycoprotein tetramer composed of 4 PHA-L subunits,with a relative molecular mass of 120000,and that each subunit is heterogeneously glycosylated at the 12th Asn to a certain degree.
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