摘要
利用酵母双杂交技术,以百脉根离子通道蛋白Pollux胞内结构域为诱饵,从百脉根AD-cDNA文库中筛选到与Pollux相互作用的多个阳性克隆,经DNA序列测定及NCBI数据库BLAST分析,其中有6个阳性克隆编码翻译延伸因子EF1A。进一步在大肠杆菌中表达与纯化Pollux和EF1A融合蛋白,通过Pull-down及Western杂交证实Pollux胞内结构域与EF1A的C-末端相互作用。
Using ion channel protein Pollux-C containing RCK domain as a bait, 14 yeast colonies were screened from Lotus japonicus AD-cDNA library with yeast two-hybrid technique. Six positive clones were found to encode elongation factor 1A (EF1A) of translation through DNA sequencing and BLAST against NCBI database. The fusion tag protein of Pollux-C and EF1A expressed in E. coli were purified. The intra-cellular domain of Pollux interacted with the C-terminus of EF1A was verified by pull-down and western blotting in vitro. The results might lay a foundation for further researches on the regulating mechanism and biological function of EF1A in symbiosis signaling in legume.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2012年第1期34-38,共5页
Journal of Huazhong Agricultural University
基金
国家自然科学基金(30870186)
国家重点基础研究发展计划"973"课题(2010CB126502)
国家转基因重大专项课题(2009ZX08009-116B)