論文

査読有り
2020年1月

A Bifunctional Polyphosphate Kinase Driving the Regeneration of Nucleoside Triphosphate and Reconstituted Cell-Free Protein Synthesis

ACS SYNTHETIC BIOLOGY
  • Po-Hsiang Wang
  • ,
  • Kosuke Fujishima
  • ,
  • Samuel Berhanu
  • ,
  • Yutetsu Kuruma
  • ,
  • Tony Z. Jia
  • ,
  • Anna N. Khusnutdinoya
  • ,
  • Alexander F. Yakunin
  • ,
  • Shawn E. McGlynn

9
1
開始ページ
36
終了ページ
42
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acssynbio.9b00456
出版者・発行元
AMER CHEMICAL SOC

Reconstituted cell-free protein synthesis systems (e.g., the PURE system) allow the expression of toxic proteins, hetero-oligomeric protein subunits, and proteins with noncanonical amino acids with high levels of homogeneity. In these systems, an artificial ATP/GTP regeneration system is required to drive protein synthesis, which is accomplished using three kinases and phosphocreatine. Here, we demonstrate the replacement of these three kinases with one bifunctional Cytophaga hutchinsonii polyphosphate kinase that phosphorylates nucleosides in an exchange reaction from polyphosphate. The optimized single-kinase system produced a final sfGFP concentration (similar to 530 mu g/mL) beyond that of the three-kinase system (similar to 400 mu g/mL), with a 5-fold faster mRNA translation rate in the first 90 min. The single-kinase system is also compatible with the expression of heat-sensitive firefly luciferase at 37 degrees C. Potentially, the single-kinase nucleoside triphosphate regeneration approach developed herein could expand future applications of cell-free protein synthesis systems and could be used to drive other biochemical processes in synthetic biology which require both ATP and GTP.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.1021/acssynbio.9b00456
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000508474400005&DestApp=WOS_CPL

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