Metabolic engineering of Klebsiella pneumoniae for the production of cis , cis -muconic acid

Verfasser / Beitragende:
[Hwi-Min Jung, Moo-Young Jung, Min-Kyu Oh]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/12(2015-06-01), 5217-5225
Format:
Artikel (online)
ID: 605500444
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024 7 0 |a 10.1007/s00253-015-6442-3  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6442-3 
245 0 0 |a Metabolic engineering of Klebsiella pneumoniae for the production of cis , cis -muconic acid  |h [Elektronische Daten]  |c [Hwi-Min Jung, Moo-Young Jung, Min-Kyu Oh] 
520 3 |a cis,cis-Muconic acid (ccMA), a metabolic intermediate of Klebsiella pneumoniae, can be converted to adipic acid and terephthalic acid, which are important monomers of synthetic polymers. However, wild-type K. pneumoniae does not produce ccMA because intracellular carbon flow does not favor ccMA biosynthesis. In this study, several metabolic engineering strategies were used in an attempt to modify the wild-type strain to induce it to produce ccMA. First, by blocking the synthesis of aromatic amino acids, 343mg/L of catechol, a precursor of ccMA, was produced. Then, the native catechol 1,2-dioxygenasegene (catA) was overexpressed, which caused the strain to convert the catechol to ccMA. The production of ccMA was further improved by deletion of the muconate cycloisomerase gene (catB) and by deleting a feedback inhibitor of the aromatic amino acid pathway. Further improvement was achieved by adjusting the pH of the culture broth. The developed strain produced 2.1g/L of ccMA in flask cultivation. The results showed the potential of K. pneumoniae as a ccMA producer. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a cis , cis -Muconic acid  |2 nationallicence 
690 7 |a Klebsiella pneumoniae  |2 nationallicence 
690 7 |a Aromatic amino acid pathway  |2 nationallicence 
690 7 |a Benzoate degradation pathway  |2 nationallicence 
700 1 |a Jung  |D Hwi-Min  |u Department of Chemical and Biological Engineering, Korea University, 136-713, Seoul, Korea  |4 aut 
700 1 |a Jung  |D Moo-Young  |u Department of Chemical and Biological Engineering, Korea University, 136-713, Seoul, Korea  |4 aut 
700 1 |a Oh  |D Min-Kyu  |u Department of Chemical and Biological Engineering, Korea University, 136-713, Seoul, Korea  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/12(2015-06-01), 5217-5225  |x 0175-7598  |q 99:12<5217  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6442-3  |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/s00253-015-6442-3  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Jung  |D Hwi-Min  |u Department of Chemical and Biological Engineering, Korea University, 136-713, Seoul, Korea  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Jung  |D Moo-Young  |u Department of Chemical and Biological Engineering, Korea University, 136-713, Seoul, Korea  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Oh  |D Min-Kyu  |u Department of Chemical and Biological Engineering, Korea University, 136-713, Seoul, Korea  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/12(2015-06-01), 5217-5225  |x 0175-7598  |q 99:12<5217  |1 2015  |2 99  |o 253