Engineering Synthetic Microbial Consortium for Cadaverine Biosynthesis from Glycerol
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Objectives: 1,5-pentanediamine (cadaverine) is a C5 platform chemical, also an important raw material for bio-polyamide PA5X. With increasing concerns about the depletion of fossil resources and global environmental protection, cadaverine bio-production has attracted more attentions.
Results: Here, a microbial consortium consisting of Corynebacterium glutamicum cgl-FDK and Escherichia coli BL-ABST-Spy was constructed to de novo synthesize cadaverine utilizing glycerol as the sole carbon resource. The glycerol utilization pathway was initially constructed in C. glutamicum cgl-FDK to produce lysine from glycerol. Then, the pyridoxal 5'-phosphate (PLP) biosynthesis pathway and SpyTag/SpyCatcher protein-ligation system for lysine decarboxylase (CadA) and cadaverine-lysine antiporter protein (CadB) were introduced into E. coli BL-ABST-Spy to synthesize cadaverine from lysine. Furthermore, the fermentation conditions of microbial consortium were optimized and the cadaverine production reached 9.3 g/L with glycerol as the sole carbon source.
Conclusions: This work provides a promising strategy for efficiently producing cadaverine from glycerol with an artificial microbial consortium.
Zhao Y, Ding W, Xu L, Sun J Front Microbiol. 2024; 15:1395477.
PMID: 38817968 PMC: 11138164. DOI: 10.3389/fmicb.2024.1395477.
Wang L, Ding B, Hu X, Li G, Deng Y Adv Sci (Weinh). 2024; 11(23):e2307779.
PMID: 38569221 PMC: 11186044. DOI: 10.1002/advs.202307779.
Xue B, Liu Y, Yang C, Liu H, Yuan Q, Wang S Adv Sci (Weinh). 2023; 11(9):e2306662.
PMID: 38093511 PMC: 10916542. DOI: 10.1002/advs.202306662.
Kang C, Lim H, Won J, Cha S, Shin G, Yang J Nat Commun. 2022; 13(1):6506.
PMID: 36344561 PMC: 9640620. DOI: 10.1038/s41467-022-34190-z.