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紫云英类受体蛋白激酶Nip43靶蛋白的筛选与初步鉴定 被引量:1

Screening and identification of the interacting protein with a RLKs protein Nip43 in Astragalus sinicus
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摘要 以紫云英类受体蛋白激酶Nip43的S-TKs结构域构建诱饵载体,通过酵母双杂交技术,筛选获得17个候选的阳性克隆。经过测序分析和Blast比对,最终确定了1个互作蛋白EPN。EPN蛋白是网格蛋白聚合反应中的配体蛋白,可调控网格蛋白的聚合反应。通过实验验证显示,靶蛋白EPN与Nip43蛋白互作最强的区域为ENTH/ANTH结构域。Real-time q PCR检测表明,epn基因参与了根瘤菌早期结瘤过程。 The S-TKs domain of Astragalus sinicus gene nip43 was cloned into pGBKT7 and used as a bait plasmid. 17 original positive candidate clones were obtained with yeast two-hybrid screening method.One positive clone encoding an EPN protein out of importance was identified through sequencing the cDNA inserts.EPN is an adaptor in the polymerization of clathrins.The critical interaction domain of EPN with Nip43 was determined as ENTH/ANTH domain.Results of real-time qPCR showed that epn gene was involved in the early process of root nodulation.
出处 《华中农业大学学报》 CAS CSCD 北大核心 2016年第3期49-53,共5页 Journal of Huazhong Agricultural University
基金 国家重点基础研究发展计划("973"计划)(2010CB126500) 国家自然科学基金项目(31371549和31460056) 高等学校博士点基金专项(20110146110012)
关键词 紫云英 共生固氮 酵母双杂交 Nip43 EPN 蛋白互作 Astragalus sinicus symbiotic nitrogen fixation yeast two-hybrid Nip43 EPN pro-tein-protein interactions
作者简介 叶竞阳,硕士研究生.研究方向:根瘤菌共生固氮体系分子机制.E-mail:snowsheep2011@163.com 通信作者:李友国,博士,教授.研究方向:生物固氮、农业环境微生物.E-mail:youguoli@mail.hzau.edu.cn
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