Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 6, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202114414
Keywords
Antibiotics; Gut microbiota; Lantibiotics; Natural products; Serine protease
Categories
Funding
- NSF of China [21922703, 91953112, 32071428]
- Natural Science Foundation of Jiangsu Province [BK20190004, BK20202004]
- National Key R&D Program of China [2019YFA0905800]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDPB18]
- China postdoctoral science foundation [2019TQ0341]
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In this study, the discovery and biosynthesis of a group of III class lantibiotics named amylopeptins from the gut microbiota of Sprague-Dawley rats are reported. Its narrow antimicrobial spectrum sets it apart from known III class lantipeptides. The use of S8 family proteases in the biosynthesis of amylopeptins is highlighted as a novel finding.
Lanthipeptides are a group of ribosomally synthesized and post-translationally modified peptides with diverse structural features and bioactivities. Gut-microbiota-derived lanthipeptides play important roles in gut homeostasis of the host. Herein, we report the discovery and biosynthesis of class III lantibiotics named amylopeptins, which are derived from the gut microbiota of Sprague-Dawley rats and display a narrow antimicrobial spectrum. In contrast to known class III lanthipeptides, the biosynthesis of amylopeptins employs AmyP, which belongs to a subgroup of S8 family serine proteases, to remove the leader of corresponding precursor peptides in a site-specific manner during the last step of their maturation. Overall, this study shows for the first time that S8 family proteases participate in the biosynthesis of class III lanthipeptides.
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