Journal
MARINE DRUGS
Volume 16, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/md16090342
Keywords
siderophore; biosynthesis; heterologous production; bisucaberin; desferrioxamine
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Funding
- JSPS KAKENHI [15H05629]
- MEXT KAKENHI [25108701]
- Grants-in-Aid for Scientific Research [15H05629, 25108701] Funding Source: KAKEN
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The biosynthetic gene cluster for bisucaberin B (1, bsb gene cluster), an N-hydroxy-N-succinyl diamine (HSD)-based siderophore, was cloned from the marine bacterium Tenacibaculum mesophilum, originated from a marine sponge. The bsb gene cluster consists of six open reading frames (ORFs), in contrast to the four ORFs typically seen in biosynthetic gene clusters of the related molecules. Heterologous expression of the key enzyme, BsbD2, which is responsible for the final biosynthetic step of 1 resulted in production of bisucaberin B (1), but not bisucaberin (2) a macrocyclic counterpart of 1. To date, numbers of related enzymes producing macrocyclic analogues have been reported, but this work represents the first example of the HSD-based siderophore biosynthetic enzyme which exclusively produces a linear molecule rather than macrocyclic counterparts.
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