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Drug Discovery from Microorganisms

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Natural Products Chemistry".

Deadline for manuscript submissions: closed (28 February 2019) | Viewed by 4278

Special Issue Editors


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Guest Editor
Department of Life Science and Biochemical Engineering, Sun Moon University, Chungnam, Korea
Interests: natural products; actinomycetes; streptomyces; flavonoids; antibiotics; anticancer drugs; metabolic engineering; synthetic biology; enzymatic modifications
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Life Science and Biochemical Engineering, Sun Moon University, 70, Sunmoon-ro 221, Tangjeong-myeon, Asan-si, Chungnam 31460, Republic of Korea
Interests: antibiotics; bio-active molecules; nanoparticles; drug development and discovery; chemical biology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Natural products (NPs) biosynthesized by microorganisms are prominent source of compounds with pharmacological values, thus established as the best starting point in the drug discovery process. Generally these compounds are biosynthesized in microorganisms through versatile metabolic pathways. They are often termed as “secondary metabolites” (SM) as they are synthesized like primary metabolites by producer organisms but may not be essential for their own metabolic processes. These SM or their derivatives are most frequently utilized as “drug leads” for the treatment of different disease conditions. Different biological approaches such as the utilization of synthetic biology tools, metabolic engineering techniques and precise enzymatic modifications have assisted in developing novel molecules with novel structural/functional diversities from the producer organism. This Special Issue aims to include research or review papers focused on key aspects of drug discovery from micro-organisms, including the isolation and characterization of novel structures, the study of biosynthetic mechansims, or the assessment of the biological activities of diverse microbe-derived molecules.

Prof. Jae Kyung Sohng
Dr. Dipesh Dhakal
Guest Editors

Manuscript Submission Information

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Keywords

  • Microbe-derived biomolecules
  • Isolation and characteriztion
  • Biosynthetic mechansims
  • Biological activities
  • Structural modifications

Published Papers (1 paper)

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Research

14 pages, 2550 KiB  
Communication
Production of a Novel Tetrahydroxynaphthalene (THN) Derivative from Nocardia sp. CS682 by Metabolic Engineering and Its Bioactivities
by Ravindra Mishra, Dipesh Dhakal, Jang Mi Han, Haet Nim Lim, Hye Jin Jung, Tokutaro Yamaguchi and Jae Kyung Sohng
Molecules 2019, 24(2), 244; https://doi.org/10.3390/molecules24020244 - 10 Jan 2019
Cited by 12 | Viewed by 3790
Abstract
Nargenicin A1 is major secondary metabolite produced by Nocardia sp. CS682, with an effective antibacterial activity against various Gram-positive bacteria. Most Nocardia spp. have metabolic ability to produce compounds of diverse nature, so one-strain-many-compounds (OSMAC) approach can be applied for obtaining versatile compounds [...] Read more.
Nargenicin A1 is major secondary metabolite produced by Nocardia sp. CS682, with an effective antibacterial activity against various Gram-positive bacteria. Most Nocardia spp. have metabolic ability to produce compounds of diverse nature, so one-strain-many-compounds (OSMAC) approach can be applied for obtaining versatile compounds from these strains. In this study, we characterized a novel 1, 3, 6, 8-tetrahydroxynaphthalene (THN) derivative by metabolic engineering approach leading to the inactivation of nargenicin A1 biosynthesis. By using genome mining, metabolite profiling, and bioinformatics, the biosynthetic gene cluster and biosynthetic mechanism were elucidated. Further, the antibacterial, anticancer, melanin formation, and UV protective properties for isolated THN compound were performed. The compound did not exhibit significant antibacterial and cytotoxic activities, but it exhibited promising UV protection effects. Thus, metabolic engineering is an effective strategy for discovering novel bioactive molecules. Full article
(This article belongs to the Special Issue Drug Discovery from Microorganisms)
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