Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins

Sommer B, Friehs K, Flaschel E (2010)
JOURNAL OF BIOTECHNOLOGY 145(4): 350-358.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Aiming to facilitate the accessibility of recombinant proteins produced with Escherichia coli, extracellular expression may be achieved by means of bacteriocin release protein (BRP) coexpression. Different types of BRPs were tested in order to optimize protein secretion into the culture medium. Those included the well-studied BRPs of the Colicin E1 and Cloacin DF13 bacteriocins and variants thereof. BRP expression was stringently controlled by means of the arabinose inducible P-BAD promoter, which accounts for a broad-range adjustment of expression strength. Using appropriate arabinose concentrations, a concentration range was determined, that allowed efficient secretion of the model proteins alkaline phosphatase and beta-lactamase, with 90-95% of the proteins released into the culture medium. Kinetic investigations into BRP expression and protein secretion revealed a rapid increase of extracellular protein concentration within 5-10 min past induction. Alternatively to fine-tuned BRP expression during cultivation, protein production and secretion could be decoupled by establishment of appropriate induction strategies and up to 90% of alkaline phosphatase was released into the culture medium within 3 h after reaching maximum biomasss concentrations. Both, fine-tuned and growth decoupled BRP expression accounted for extracellular alkaline phosphatase concentrations of roughly 500 mgl(-1) of culture broth and selectivities of 50 mg of this enzyme per gram of cell dry mass, respectively. (C) 2009 Elsevier B.V. All rights reserved.
Stichworte
Escherichia coli; Recombinant protein; expression; Secretion; Promoter; Extracellular production; Bacteriocin release protein
Erscheinungsjahr
2010
Zeitschriftentitel
JOURNAL OF BIOTECHNOLOGY
Band
145
Ausgabe
4
Seite(n)
350-358
ISSN
0168-1656
Page URI
https://pub.uni-bielefeld.de/record/1796536

Zitieren

Sommer B, Friehs K, Flaschel E. Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins. JOURNAL OF BIOTECHNOLOGY. 2010;145(4):350-358.
Sommer, B., Friehs, K., & Flaschel, E. (2010). Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins. JOURNAL OF BIOTECHNOLOGY, 145(4), 350-358. doi:10.1016/j.jbiotec.2009.11.019
Sommer, B., Friehs, K., and Flaschel, E. (2010). Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins. JOURNAL OF BIOTECHNOLOGY 145, 350-358.
Sommer, B., Friehs, K., & Flaschel, E., 2010. Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins. JOURNAL OF BIOTECHNOLOGY, 145(4), p 350-358.
B. Sommer, K. Friehs, and E. Flaschel, “Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins”, JOURNAL OF BIOTECHNOLOGY, vol. 145, 2010, pp. 350-358.
Sommer, B., Friehs, K., Flaschel, E.: Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins. JOURNAL OF BIOTECHNOLOGY. 145, 350-358 (2010).
Sommer, Benjamin, Friehs, Karl, and Flaschel, Erwin. “Efficient production of extracellular proteins with Escherichia coli by means of optimized coexpression of bacteriocin release proteins”. JOURNAL OF BIOTECHNOLOGY 145.4 (2010): 350-358.

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