Overexpression of ribosome elongation factor G and recycling factor increases l -isoleucine production in Corynebacterium glutamicum

Verfasser / Beitragende:
[Jianxun Zhao, Xiaoqing Hu, Ye Li, Xiaoyuan Wang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/11(2015-06-01), 4795-4805
Format:
Artikel (online)
ID: 605506248
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024 7 0 |a 10.1007/s00253-015-6458-8  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6458-8 
245 0 0 |a Overexpression of ribosome elongation factor G and recycling factor increases l -isoleucine production in Corynebacterium glutamicum  |h [Elektronische Daten]  |c [Jianxun Zhao, Xiaoqing Hu, Ye Li, Xiaoyuan Wang] 
520 3 |a Ribosome elongation factor G encoded by fusA promotes the translocation step of protein synthesis in bacteria; ribosome recycling factor encoded by frr, together with the elongation factor G, dissociates ribosomes from messenger RNA after the termination of translation. Both factors play important roles during protein synthesis in bacteria. In this study, we found that overexpression of fusA and/or frr led to the increase of l-isoleucine production in Corynebacterium glutamicum IWJ001, an l-isoleucine production strain generated by random mutagenesis. Reverse transcription polymerase chain reaction analysis showed that transcriptional levels of genes lysC, hom, thrB, ilvA, ilvBN, and ilvE encoding the key enzymes in the biosynthetic pathway of l-isoleucine increased in C. glutamicum IWJ001 when fusA and/or frr were overexpressed. Co-overexpression of fusA and frr, together with genes ilvA, ilvB, ilvN, and ppnk in C. glutamicum IWJ001, led to 76.5% increase of l-isoleucine production in flask cultivation and produced 28.5g/L l-isoleucine in 72-h fed-batch fermentation. The results demonstrate that overexpressing ribosome elongation factor G and ribosome recycling factor is an efficient approach to enhance l-isoleucine production in C. glutamicum. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Corynebacterium glutamicum  |2 nationallicence 
690 7 |a l -Isoleucine production  |2 nationallicence 
690 7 |a fusA  |2 nationallicence 
690 7 |a frr  |2 nationallicence 
690 7 |a Elongation factor G  |2 nationallicence 
690 7 |a Ribosome recycling factor  |2 nationallicence 
700 1 |a Zhao  |D Jianxun  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
700 1 |a Hu  |D Xiaoqing  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
700 1 |a Li  |D Ye  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
700 1 |a Wang  |D Xiaoyuan  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/11(2015-06-01), 4795-4805  |x 0175-7598  |q 99:11<4795  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6458-8  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6458-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhao  |D Jianxun  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hu  |D Xiaoqing  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Ye  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Xiaoyuan  |u State Key Laboratory of Food Science and Technology, Jiangnan University, 214122, Wuxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/11(2015-06-01), 4795-4805  |x 0175-7598  |q 99:11<4795  |1 2015  |2 99  |o 253