修饰系统

而原核表达系统由于没有翻译后加工修饰系统，表达的真核细胞蛋白质多以包涵体形式表达，复性纯化方法复杂。

The prokaryotic expression system has no post-translational modification system and the exogenous proteins always emerge in the inclusion body , complicating the course of renaturation and purification .

植物油体表达体系具有融合蛋白易于分离，提取工艺简单，重组蛋白可在种子中长期稳定贮存、易于运输，无动物病毒污染，蛋白后修饰系统完善等诸多优点。

The fusion protein produced by plant oil bodies expression system has many advantages , such as easy separation , simple extraction process engineering , long term stability of recombinant protein stored in seeds , easy to transport , no animal pathogenic contaminations , and perfect protein modification system .

其中腺嘌呤甲基化在原核生物限制-修饰系统、DNA复制、DNA错配修复和基因表达调控中发挥着重要的作用。

Adenine methylation plays important roles in restriction-modificaton system , DNA replication , DNA mismatch repair and gene expression regulation in prokaryotes .

根据噬菌体侵入宿主的不同阶段，可以将宿主菌对噬菌体的天然抵抗机制分为4个主要的类别：吸附抑制，流产感染，限制修饰系统和穿入阻滞。

On the basis of their mode of action , four categories of naturally occurring phage resistance mechanisms are presented as follows : adsorption inhibition , penetration blocking , restriction modification systems , and abortive infection .

亲水骨架片是目前最常用的修饰释放系统。

The hydrophilic matrices the most commonly used in the modified-release system were discussed .

进化论或许是起点，但历经沧桑，人类的本性冲动受到修饰和系统化加工，并且被文化和宗教赋以神话论。

Biology may be the starting point , but over time , human impulses are embellished and institutionalized and made sacred by culture and religion .

并对其抗氧化机理、应用条件、稳定性及分子修饰进行了系统的研究。

We also researched its antioxidant mechanism , application conditions , stability and molecular modification by the numbers .

通过对富勒烯修饰的BLM膜系统的电子特性的研究，我们证实了在暗态下BLM膜中的电子传输过程，对膜内电子传输过程建立了合理模型。

The electronic processes in BLMs were confirmed by the BLM doped with C60 .

修饰说明与磁盘系统的读/写头相关的一种术语，在该系统中读/写头通常不接触盘面。

Pertaining to read / write heads in magnetic disk systems that do not usually touch the disk surface .

本研究采用1,2-丙二醇液相还原法，合成具有纳米尺度的金属镍粒子，并对合成条件、粒径控制和表面修饰进行了较为系统的研究。

In this research , the nickel ( Ni ) nanoparticles were prepared with 1 , 2-propanediol as the reductant . The synthetic condition , particle size-controlled and surface modification of the Ni nanoparticles were systematically investigated .

转录因子及其调控网络的遗传修饰已成为从系统水平上探索胁迫生物学和提高植物胁迫耐性和抗性的有效工具。

The genetic modifications of transcription factors and their regulation networks are increasingly becoming the effective approaches for understanding stress biology at system level , and a new way for enhancing the stress tolerance and resistance of plants .

f菌修饰碳粉粉末微电极，应用细菌修饰粉末微电极系统研究了Fe2+在T.f菌存在时氧化的电化学反应机理，并测定了相应的电极过程动力学参数。

The thiobacillus ferrooxidants modified carbon powder microelectrode is prepared , and using it the electrochemical mechanisms of the Fe 2 + oxidation are studied and the relatively dynamic parameters are measured .