Biotechnology Bulletin ›› 2021, Vol. 37 ›› Issue (6): 259-271.doi: 10.13560/j.cnki.biotech.bull.1985.2020-1255

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The Strategy for Enhancing Foreign Proteins Expression by Signal Peptide in Bacillus subtilis

MIAO Hua-biao1,2(), CAO Yan1, YANG Meng-han1, HUANG Zun-xi1,2()   

  1. 1. College of Life Sciences,Yunnan Normal University,Kunming 650500
    2. Engineering Research Center of Sustainable Development and Utilization of Biomass Energy,Ministry of Education,Kunming 650500
  • Received:2020-10-13 Online:2021-06-26 Published:2021-07-08
  • Contact: HUANG Zun-xi E-mail:ynsfmhb@163.com;huangzunxi@163.com

Abstract:

As an important prokaryotic expression host strain,Bacillus subtilis has always been regarded as preferred model strain for foreign protein expression,featuring strong protein secretion,clear genetic background,no codon preference,rapid growth and non-pathogenicity. Signal peptide is a short peptide chain located in the N-terminal of the precursor protein,with the function of guiding and regulating the folding of the precursor protein. Meanwhile,it plays a very important role in the process of protein transfer and secretion. At present,there is no regularity to find the efficient secretion of different foreign proteins by using the signal peptide of B. subtilis. For this reason,the structural characteristics,classification,transport pathway and application of signal peptides from B. subtilis are reviewed here,aiming to provide certain reference for further screening the optimal signal peptides of foreign proteins in B. subtilis expression system.

Key words: Bacillus subtilis, signal peptide, secretion pathway, signal peptide library