NDLI: Heterologous Production of Clostridium cellulovorans engB, Using Protease-Deficient Bacillus subtilis, and Preparation of Active Recombinant Cellulosomes

Content Provider	PubMed Central
Author	Murashima, Koichiro Chen, Chyi-liang Kosugi, Akihiko Yutaka, Tamaru Doi, Roy H. Wong, Sui-lam
Copyright Year	2002
Abstract	In cellulosomes produced by Clostridium spp., the high-affinity interaction between the dockerin domain and the cohesin domain is responsible for the assembly of enzymatic subunits into the complex. Thus, heterologous expression of full-length enzymatic subunits containing the dockerin domains and of the scaffolding unit is essential for the in vitro assembly of a “designer” cellulosome, or a recombinant cellulosome with a specific function. We report the preparation of Clostridium cellulovorans recombinant cellulosomes containing the enzymatic subunit EngB and the scaffolding unit, mini-CbpA, containing a cellulose binding domain, a putative cell wall binding domain, and two cohesin units. The full-length EngB containing the dockerin domain was expressed by Bacillus subtilis WB800, which is deficient in eight extracellular proteases, to prevent the proteolytic cleavage of the enzymatic subunit between the catalytic and dockerin domains that was observed in previous attempts to express EngB with Escherichia coli. The assembly of recombinant EngB with the mini-CbpA was confirmed by immunostaining, a cellulose binding experiment, and native polyacrylamide gel electrophoresis analysis.
Related Links	http://dx.doi.org/10.1128/jb.184.1.76-81.2002
Ending Page	81
Page Count	6
Starting Page	76
File Format	PDF
ISSN	00219193
e-ISSN	10985530
Journal	Journal of Bacteriology
Issue Number	1
Volume Number	184
Language	English
Publisher	American Society for Microbiology
Publisher Date	2002-01-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Molecular Biology Microbiology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Molecular Biology Microbiology

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Heterologous Production of Clostridium cellulovorans engB, Using Protease-Deficient Bacillus subtilis, and Preparation of Active Recombinant Cellulosomes

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