Conentional methods such as fractionation of complex clinical samples by ionic exchange chromatography and new methods such as enriching low abundant proteins by affinity capture with a combinatorial library of ligands14 proide much needed tools for processing complex biological and clinical samples for proteomics research 传统(如对复杂临床样品通过离子交换层析进行分离)和现代的方法(如通过亲和捕获与配体库的组合富集低丰度蛋白)为处理用于蛋白质组学研究的复杂的生物学与临床样品提供了极需的工具。
Based on the extensive studies of subtilisin - like protease ( prl ) of metarhizium anisopliae , extracellullar serine protease is suggested to be a key enzyme involved in the fimgal penetration to invertebrates . the investigation of serine protease in the nematode infected by owvtl may help to understand the mechanism of nematophagous fimgi as biological control agents . a 3l kda serine protease was isolated and purified from the liquid culture of h rhossiliensis owvtl challenged with nematode panagrellus redivivus 本研究利用线虫诱导下owvt - 1菌株液体发酵，通过粗分级分离、离子交换层析和凝胶过滤层析分离提纯了一个分子量为31kda的丝氨酸蛋白酶，生物学测定表明其对大豆胞囊线虫二龄幼虫具有致死作用，同时测定了该酶理化特性，酶活力在75附近酶活力最高，随着ph的增加酶的稳定性升高，与胆碱酯酶具有相似的ph曲线，对特异性底物aape ( suc - ala - ala - pro - glu - pna )具有作用， ssi和ci - 2抑制该酶的活性。
