Yanqing Xue, Yijiao Xiong, Wei Huang, Jianing Liu, Wen Liu
{"title":"Remodeling of ribosomally synthesized peptide backbones based on posttranslational modifications.","authors":"Yanqing Xue, Yijiao Xiong, Wei Huang, Jianing Liu, Wen Liu","doi":"10.1039/d5np00018a","DOIUrl":"https://doi.org/10.1039/d5np00018a","url":null,"abstract":"<p><p>Covering: 2013-2024Benefiting significantly from recent advances in genome mining, ribosomally synthesized and posttranslationally modified peptide (RiPP) natural products have emerged as a source of chemical inspiration to drive the discovery of therapeutic agents and the development of new biological tools for addressing challenges to synthetic approaches. Despite being confined to twenty proteinogenic amino acid building blocks, the structural complexity and diversity of RiPPs that arise from enzymatic posttranslational modifications (PTMs) surpass expectations and are now believed to be comparable to those produced by non-ribosomal peptide synthetases. Here, we highlight the PTM enzymes characterized over the past decade that engage the -(NH-C<sub>α</sub>-CO)<sub><i>n</i></sub>- repeating units in transformations, particularly those leading to structural rearrangements by peptide backbone remodeling. Unveiling the catalytic mechanisms of these unusual PTM enzymes deepens the understanding in RiPP biosynthesis and, eventually, will enhance our capability of rational design, development and production of functional peptide agents using synthetic biology strategies.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144109175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mark Ellerhorst, Vadim Nikitushkin, Walid K Al-Jammal, Lucas Gregor, Ivan Vilotijević, Gerald Lackner
{"title":"Recent insights into the biosynthesis and biological activities of the peptide-derived redox cofactor mycofactocin.","authors":"Mark Ellerhorst, Vadim Nikitushkin, Walid K Al-Jammal, Lucas Gregor, Ivan Vilotijević, Gerald Lackner","doi":"10.1039/d5np00012b","DOIUrl":"https://doi.org/10.1039/d5np00012b","url":null,"abstract":"<p><p>Covering: 2011 to 2025The importance of redox cofactors like nicotinamide adenine dinucleotide or flavin adenine dinucleotide as cofactors for enzymatic reactions in living organisms is widely known. However, many microbial species also employ unusual redox cofactors such as the coenzyme F<sub>420</sub> or the peptide-derived pyrroloquinoline quinone (PQQ). In this review, we introduce the reader to the recently discovered bacterial redox cofactor mycofactocin (MFT), a valine-tyrosine-derived small molecule of the class of ribosomally synthesized and post-translationally modified peptides (RiPPs) with remarkable biosynthetic and functional similarities to PQQ. The cofactor plays an important role in the reoxidation of non-exchangeable nicotinamide redox cofactors of specialized oxidoreductases in mycobacteria and related actinobacteria. We highlight the bioinformatic discovery of the mycofactocin gene cluster and its auxiliary genes, present strategies for the chemical synthesis of the cofactor, and take a detailed look at the biosynthesis of the glycosylated molecule. Subsequently, the diverse mycofactocin-inducing conditions and associated oxidoreductase families are reviewed, and a potential electron transfer route from high-energy alcohols <i>via</i> mycofactocin to oxygen as a final electron acceptor is presented. The review concludes with a comparison of the physiological roles of PQQ and MFT, and an outlook for future research questions and potential biotechnological applications of mycofactocin.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prenylated bacterial natural products: occurrence, chemical diversity, biosynthesis and bioactivity.","authors":"Fan Zhang, Di Zhao, Yuzhu Wu, Lei Li","doi":"10.1039/d5np00011d","DOIUrl":"https://doi.org/10.1039/d5np00011d","url":null,"abstract":"<p><p>Covering: 2000 to 2024Prenylated bacterial natural products (NPs), catalyzed by cluster-situated prenyltransferases (PTs), exhibit large structural diversity and broad biological activities and have received increasing attention for novel drug discovery and development. This review provides a comprehensive summary of the recent progress in the investigation of prenylated bacterial NPs. To highlight the structural and chemical space of prenylated bacterial NPs, we discuss their occurrence, structures, biosynthesis and bioactivities. Representative examples are summarized with illustrations of PT-catalyzed biosynthetic pathways of distinct NP classes, which present new opportunities for the discovery of novel prenylated bacterial NPs. The mechanistic study of PTs involved in bacterial NP biosynthesis has been outlined, and prenylated bacterial NPs hold great promise as novel biocatalysts for the synthesis of novel drug leads in modern medicine.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent highlights of the total synthesis of cyclic peptide natural products.","authors":"Takayuki Doi, Masaya Kumashiro, Kosuke Ohsawa","doi":"10.1039/d4np00056k","DOIUrl":"https://doi.org/10.1039/d4np00056k","url":null,"abstract":"<p><p>Covering: 2020 to 2022This review described the total synthesis of naturally occurring cyclic peptides with unique structures covering 2020 to 2022, <i>i.e.</i>, darobactin A, pyritide A2, decatransin, mannopeptimycin β, α- and β-amanitins, orfamide A, and MA026, paying particular attention to the construction of their unique structures <i>via</i> macrocyclization.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144053019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent advances in the chemistry and biology of plant oxylipin hormones.","authors":"Yuho Nishizato, Taichi Okumura, Kotaro Matsumoto, Minoru Ueda","doi":"10.1039/d5np00006h","DOIUrl":"https://doi.org/10.1039/d5np00006h","url":null,"abstract":"<p><p>Jasmonates, including jasmonic acid (JA) and its derivatives, are lipid-based signaling molecules critical for plant growth, development, and defense. Among these, jasmonoyl-L-isoleucine (JA-Ile) has been identified as a bioactive plant hormone that mediates various physiological responses. JA-Ile functions <i>in planta</i> as a 'molecular glue' in protein-protein associations to induce the defense-related gene expression for plant-pathogen and plant-insect communications, and it affects many aspects of plant development and stress responses. This review explores the historical journey of jasmonate research, emphasizing the discovery of JA-Ile, its biosynthesis, function as a molecular glue, and the ligand-receptor co-evolutional aspect. The elucidation of the SCFCOI1-JAZ receptor complex and the crystallization of this co-receptor system marked significant advancements in understanding the chemical background of jasmonate biology. This review focuses on the advances in the chemistry and biology of jasmonate bioscience in the past two decades.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143952051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jeong-A Kim, Si-Sun Choi, Jae Kyu Lim, Eung-Soo Kim
{"title":"Unlocking marine treasures: isolation and mining strategies of natural products from sponge-associated bacteria.","authors":"Jeong-A Kim, Si-Sun Choi, Jae Kyu Lim, Eung-Soo Kim","doi":"10.1039/d5np00013k","DOIUrl":"https://doi.org/10.1039/d5np00013k","url":null,"abstract":"<p><p>Covering: 2019 to early 2025Marine sponges form unique ecosystems through symbiosis with diverse microbial communities, producing natural products including bioactive compounds. This review comprehensively addresses the key steps in the discovery of natural products from sponge-associated microorganisms, encompassing microbial isolation and cultivation, compound identification, and characterisation. Various cultivation methods, such as floating filter cultivation, microcapsule-based cultivation, and <i>in situ</i> systems, are examined to highlight their applications and strategies for overcoming limitations of conventional approaches. Additionally, the integration of genome-based methodologies and compound screening is explored to enhance the discovery of novel bioactive substances and establish a sustainable platform for natural product research. This review provides insights into the latest trends in sponge-associated microbial research and offers practical perspectives for expanding the utilization of marine biological resources.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinsheng Cui, Prima F Hillman, Geum Jin Kim, Thinh T M Bui, Kyuho Moon, Sang-Jip Nam, Hyukjae Choi, Dong-Chan Oh
{"title":"Configurational assignments of type-I polyketide synthase (PKS)-derived natural products based on spectroscopic and chemical analysis: methodologies and case studies.","authors":"Jinsheng Cui, Prima F Hillman, Geum Jin Kim, Thinh T M Bui, Kyuho Moon, Sang-Jip Nam, Hyukjae Choi, Dong-Chan Oh","doi":"10.1039/d4np00061g","DOIUrl":"https://doi.org/10.1039/d4np00061g","url":null,"abstract":"<p><p>Covering: 1992 to 2024Type-I polyketide synthase (PKS)-derived metabolites are structurally diverse bioactive natural products containing multiple stereogenic centres. This review focuses on the configurational analysis of type-I PKS-derived natural products, emphasizing the methodologies and challenges associated with determining their stereochemistry due to their complex structures with multiple chiral centres. Key strategies include <i>J</i>-based configuration analysis (JBCA), chemical derivatizations with chiral reagents, degradation methods, NMR spectroscopic analysis, and the exploitation of chiroptical properties. Case studies demonstrate the practical applications of these methods in elucidating the stereochemistry of type-I polyketide natural products.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143952583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Federica Casolari, Amelia Westmoreland, Thomas Vanagt, Marcel Jaspars
{"title":"Unpacking policy developments in marine natural product research: a scientist's guide to DSI and BBNJ.","authors":"Federica Casolari, Amelia Westmoreland, Thomas Vanagt, Marcel Jaspars","doi":"10.1039/d4np00070f","DOIUrl":"https://doi.org/10.1039/d4np00070f","url":null,"abstract":"<p><p>Covering: 2014 up to February 2025Since the Nagoya Protocol came into force in 2014, scientists working with genetic resources have integrated compliance with Access and Benefit-Sharing (ABS) legislation at international and national levels into their research practices. However, two key gaps left by the Nagoya Protocol are being addressed, introducing new obligations for marine natural product scientists: under the auspices of the Convention on Biological Diversity (CBD), a compromise agreement was reached in November 2024 that regulates the use of Digital Sequence Information (DSI) on Genetic Resources. Within the next few years, the 2023 Biodiversity Beyond National Jurisdiction (BBNJ) Agreement is expected to take effect. This treaty covers the access to and use of marine biodiversity of areas beyond national jurisdiction for research and development. In a time when genetic research and marine biodiversity are key to scientific advancement, these evolving policies affect how genetic information is stored, shared, and used, raising emerging questions for the scientific community about their direct impact and the complexities of compliance. Despite continuous developments and scientific community involvement, there remains a notable gap in communication between policy changes and their accessible dissemination to researchers. Addressing this gap is crucial for the continuation of research and the effective use of relevant resources. The main goal of this viewpoint article is to provide a concise guide to recent policy developments relevant to natural product researchers that should be incorporated and harmonized into ongoing scientific activities.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manyun Chen, Dipesh Dhakal, Campbell W Eckhardt, Hendrik Luesch, Yousong Ding
{"title":"Synthetic biology strategies for cyanobacterial systems to heterologously produce cyanobacterial natural products.","authors":"Manyun Chen, Dipesh Dhakal, Campbell W Eckhardt, Hendrik Luesch, Yousong Ding","doi":"10.1039/d5np00009b","DOIUrl":"https://doi.org/10.1039/d5np00009b","url":null,"abstract":"<p><p>Covering: 2014 to 2024Cyanobacteria are prolific producers of bioactive natural products, including promising drug leads for FDA-approved cancer therapeutics. Advances in genome sequencing and computational tools have revealed a wealth of cyanobacterial biosynthetic gene clusters (BGCs). However, progress in genome-driven discovery has been hindered by challenges in manipulating native hosts and the limited availability of efficient heterologous expression platforms. This highlight focuses on recent synthetic biology innovations on cyanobacterial systems that address these obstacles, facilitating the production of diverse cyanobacterial natural product families. We discuss key features of widely used cyanobacterial chassis, such as <i>Synechocystis</i> sp. PCC 6803, <i>Synechococcus elongatus</i> UTEX 2973, <i>Anabaena</i> sp. PCC 7120, and emerging hosts. Advances in BGC cloning, combinatorial biosynthesis, transcriptional and translational regulation, and host engineering are also highlighted. Together, these synthetic biology developments provide a powerful framework for expanding cyanobacterial natural product discovery and production.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12002140/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modulators of the ubiquitin-proteasome system from natural products: chemical structures and their potential for drug discovery.","authors":"Yuki Hitora, Sachiko Tsukamoto","doi":"10.1039/d5np00004a","DOIUrl":"https://doi.org/10.1039/d5np00004a","url":null,"abstract":"<p><p>Covering: up to 2024The ubiquitin-proteasome system (UPS) plays a key role in regulating intracellular protein degradation and maintaining cellular homeostasis. Within the UPS, target proteins are polyubiquitinated through sequential reactions catalyzed by ubiquitination-related enzymes. These ubiquitinated proteins are then recognized and degraded by the 26S proteasome. Deubiquitinating enzymes cleave the formed polyubiquitin chains and regulate protein degradation, thereby contributing to precise regulation of the system. Dysregulation of the UPS is associated with cancer, immune disorders, and neurodegenerative diseases, making it a potential target for drug discovery. To date, a variety of natural products that target the UPS have been discovered and used in pharmaceutical development, and these compounds have provided important insights into the molecular mechanisms of UPS regulation. This review describes natural products that inhibit protein degradation in the UPS and activate protein degradation mediated by the 20S proteasome, thus clarifying their mechanisms of action and exploring their potential applications as therapeutic agents.</p>","PeriodicalId":94,"journal":{"name":"Natural Product Reports","volume":" ","pages":""},"PeriodicalIF":10.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}