Baweja Mehak, Nain Lata, Kawarabayasi Yutaka, Shukla Pratyoosh
Enzyme Technology and Protein Bioinformatics Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak India.
Division of Microbiology, Indian Agricultural Research Institute, New Delhi India.
Front Microbiol. 2016 Jun 16;7:965. doi: 10.3389/fmicb.2016.00965. eCollection 2016.
Enzymes from extremophiles are creating interest among researchers due to their unique properties and the enormous power of catalysis at extreme conditions. Since community demands are getting more intensified, therefore, researchers are applying various approaches viz. metagenomics to increase the database of extremophilic species. Furthermore, the innovations are being made in the naturally occurring enzymes utilizing various tools of recombinant DNA technology and protein engineering, which allows redesigning of the enzymes for its better fitment into the process. In this review, we discuss the biochemical constraints of psychrophiles during survival at the lower temperature. We summarize the current knowledge about the sources of such enzymes and their in vitro modification through mutagenesis to explore their biotechnological potential. Finally, we recap the microbial cell surface display to enhance the efficiency of the process in cost effective way.
嗜极微生物的酶因其独特的性质以及在极端条件下巨大的催化能力而引起了研究人员的兴趣。由于社会需求日益增加,因此,研究人员正在应用各种方法,即宏基因组学来增加嗜极微生物物种的数据库。此外,利用重组DNA技术和蛋白质工程的各种工具对天然存在的酶进行创新,这使得能够对酶进行重新设计,以使其更好地适用于该过程。在这篇综述中,我们讨论了嗜冷菌在低温下生存期间的生化限制。我们总结了关于此类酶的来源及其通过诱变进行体外修饰以探索其生物技术潜力的当前知识。最后,我们简述了微生物细胞表面展示,以经济有效的方式提高该过程的效率。