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Bashiri G. F 420-dependent transformations in biosynthesis of secondary metabolites. Curr Opin Chem Biol 2024; 80:102468. [PMID: 38776765 DOI: 10.1016/j.cbpa.2024.102468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024]
Abstract
Cofactor F420 has been historically known as the "methanogenic redox cofactor". It is now recognised that F420 has essential roles in the primary and secondary metabolism of archaea and bacteria. Recent discoveries highlight the role of F420 as a redox cofactor in the biosynthesis of various natural products, including ribosomally synthesised and post-translationally modified peptides, and a new class of nicotinamide adenine dinucleotide-based secondary metabolites. With the vast availability of (meta)genomic data, the identification of uncharacterised F420-dependent enzymes offers the potential for discovering novel secondary metabolites, presenting valuable prospects for clinical and biotechnological applications.
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Affiliation(s)
- Ghader Bashiri
- Laboratory of Microbial Biochemistry and Biotechnology, School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand.
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Petushkov VN, Vavilov MV, Ivanov IA, Ziganshin RH, Rodionova NS, Yampolsky IV, Tsarkova AS, Dubinnyi MA. Deazaflavin cofactor boosts earthworms Henlea bioluminescence. Org Biomol Chem 2023; 21:415-427. [PMID: 36530053 DOI: 10.1039/d2ob01946a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The bioluminescence of Siberian earthworms Henlea sp. was found to be enhanced by two low molecular weight activators, termed ActH and ActS, found in the hot extracts. The fluorescence emission maximum of the activators matches the bioluminescence spectrum that peaks at 464 nm. We purified 4.3 and 8.8 micrograms of ActH and ActS from 200 worms and explored them using orbitrap HRMS with deep fragmentation and 1D/2D NMR equipped with cryoprobes. Their chemical structures were ascertained using chemical shift prediction services, structure elucidation software and database searches. ActH was identified as the riboflavin analoge archaeal cofactor F0, namely 7,8-didemethyl-8-hydroxy-5-deazariboflavin. ActS is a novel compound, namely ActH sulfated at the 3' ribityl hydroxyl. We designed and implemented a new four step synthesis strategy forActH that outperformed previous synthetic approaches. The synthetic ActH was identical to the natural one and activated Henlea sp. bioluminescence. The bioluminescence enhancement factor X was measured at different ActH concentrations and the Michaelis constant Km = 0.22 ± 0.01 μM was obtained by nonlinear regression. At an excess of synthetic ActH, the factor X was saturated at Xmax = 33.3 ± 0.5, thus opening an avenue to further characterisation of the Henlea sp. bioluminescence system. ActH did not produce bioluminescence without the luciferin with an as yet unknown chemical structure. We propose that ActH and the novel sulfated deazariboflavin ActS either emit the light of the Henlea sp. bioluminescence and/or accept hydride(s) donor upon luciferin oxidation.
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Affiliation(s)
- Valentin N Petushkov
- Institute of Biophysics, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036, Krasnoyarsk, Russia
| | - Matvey V Vavilov
- Shemyakin-Ovchinnikov Institute of bioorganic chemistry, Russian academy of Sciences GSP-7, Miklukho-Maklaya str., 16/10, 117997, Moscow, Russia.
| | - Igor A Ivanov
- Shemyakin-Ovchinnikov Institute of bioorganic chemistry, Russian academy of Sciences GSP-7, Miklukho-Maklaya str., 16/10, 117997, Moscow, Russia.
| | - Rustam H Ziganshin
- Shemyakin-Ovchinnikov Institute of bioorganic chemistry, Russian academy of Sciences GSP-7, Miklukho-Maklaya str., 16/10, 117997, Moscow, Russia.
| | - Natalia S Rodionova
- Institute of Biophysics, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036, Krasnoyarsk, Russia
| | - Ilia V Yampolsky
- Shemyakin-Ovchinnikov Institute of bioorganic chemistry, Russian academy of Sciences GSP-7, Miklukho-Maklaya str., 16/10, 117997, Moscow, Russia.
| | - Aleksandra S Tsarkova
- Shemyakin-Ovchinnikov Institute of bioorganic chemistry, Russian academy of Sciences GSP-7, Miklukho-Maklaya str., 16/10, 117997, Moscow, Russia. .,Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Maxim A Dubinnyi
- Shemyakin-Ovchinnikov Institute of bioorganic chemistry, Russian academy of Sciences GSP-7, Miklukho-Maklaya str., 16/10, 117997, Moscow, Russia. .,Moscow Institute of Physics and Technology (State University), 9 Institutskiy per., Dolgoprudny, Moscow Region 141700, Russia
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Wang L, Lei Z, Zhang Z, Shimizu K, Yuan T, Li S, Liu S. Insight into enhanced acetic acid production from food waste in anaerobic hydrolysis/acidification with Fe 3O 4 supplementation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 150:310-319. [PMID: 35901642 DOI: 10.1016/j.wasman.2022.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/10/2022] [Accepted: 07/16/2022] [Indexed: 06/15/2023]
Abstract
Fe3O4 supplementation has been reported as a high-efficient approach to enhance biogas production in anaerobic digestion (AD). Volatile fatty acids (VFAs), especially acetic acid (HAc), are considered as important products in acidification process of AD. However, the possible mechanisms involved in promotion effect of Fe3O4 on HAc production in hydrolysis and acidification processes of AD have not been comprehensively studied. This study first investigated the promotion effect of Fe3O4 on hydrolysis, acidogenesis and acetogenesis stages of AD and proposed the underlying mechanisms, using food waste (FW) as the feedstock, which is considered as the most suitable substrate for VFAs production. Results indicated that the HAc production (77.38 g-C/kg-VS) was enhanced by 79 % in AD of FW with addition of 10 g/L Fe3O4. The duration to reach the maximum HAc production was also shortened from 14 days to 10 days. The AD tests using model substrates revealed that Fe3O4 enhanced hydrolysis, acidogenesis, and degradation of propionic acid, thus resulting in enhanced HAc production. The enhanced activities of hydrolytic and acid-forming enzymes, and electron transport system (ETS) with Fe3O4 addition further demonstrated its function as an electron acceptor to stimulate electron transfer and accelerate microbial metabolisms in AD, which contributed to the enhanced HAc production from FW.
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Affiliation(s)
- Lanting Wang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhongfang Lei
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhenya Zhang
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Kazuya Shimizu
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Tian Yuan
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
| | - Shengnan Li
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Siting Liu
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
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Cofactor F420, an emerging redox power in biosynthesis of secondary metabolites. Biochem Soc Trans 2022; 50:253-267. [PMID: 35191491 DOI: 10.1042/bst20211286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 02/07/2023]
Abstract
Cofactor F420 is a low-potential hydride-transfer deazaflavin that mediates important oxidoreductive reactions in the primary metabolism of archaea and a wide range of bacteria. Over the past decade, biochemical studies have demonstrated another essential role for F420 in the biosynthesis of various classes of natural products. These studies have substantiated reports predating the structural determination of F420 that suggested a potential role for F420 in the biosynthesis of several antibiotics produced by Streptomyces. In this article, we focus on this exciting and emerging role of F420 in catalyzing the oxidoreductive transformation of various imine, ketone and enoate moieties in secondary metabolites. Given the extensive and increasing availability of genomic and metagenomic data, these F420-dependent transformations may lead to the discovery of novel secondary metabolites, providing an invaluable and untapped resource in various biotechnological applications.
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