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豌豆乙酰羟酸还原异构酶基因的cDNA克隆及其表达 被引量:2

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摘要  用cDNA差示分析法从G2 豌豆总RNA中筛选到一个GA_3特异诱导表达的基因片段,用该片段作探针进一步筛选G2豌豆c DNA文库,得到一个全长2036 bp 的c DNA序列.经分析,该c DNA含有一个 1746 bp 的可读框,编码的蛋白质含有 581个氨基酸,理论分子量为 64 ku, c DNA及推导的氨基酸序列分别与不同来源的乙酰羟酸还原异构酶相应序列有较高的同源性.将该基因转入表达载体中并在大肠杆菌中表达,获得了具有显著酶活性的外源蛋白.
出处 《科学通报》 EI CAS CSCD 北大核心 2001年第12期1022-1026,共5页 Chinese Science Bulletin
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