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草鱼生长激素在毕赤酵母中的高效分泌表达
Authors
孙永华
朱作言
汪亚平
王伟
Publication date
1 January 2003
Publisher
Abstract
为大量获得具有生物学活性的草鱼生长激素,对草鱼生长激素cDNA在毕赤酵母中的表达进行了研究。将草鱼生长激素cDNA克隆入毕赤酵母表达载体pGAPZ-α-B,构建表达载体pGAPZ-α-B-GH。在三磷酸甘油醛脱氢酶(GAP)启动子的调控作用下,一个类似于天然生长激素大小、分子量约22kD的蛋白获得表达,其表达量约50mg/L。Western杂交表明:表达的蛋白与兔抗草鱼生长激素的多克隆抗体特异结合,证实该表达蛋白为草鱼生长激素;受体夹心式ELISA检测表明:表达的草鱼生长激素具生物学活性,能与不同种鱼来源的肝膜受体特异结合
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:342005/37736
Last time updated on 25/11/2020