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Roman D, Meisinger P, Guillonneau R, Peng CC, Peltner LK, Jordan PM, Haensch V, Götze S, Werz O, Hertweck C, Chen Y, Beemelmanns C. Structure Revision of a Widespread Marine Sulfonolipid Class Based on Isolation and Total Synthesis. Angew Chem Int Ed Engl 2024; 63:e202401195. [PMID: 38529534 DOI: 10.1002/anie.202401195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/27/2024]
Abstract
The cosmopolitan marine Roseobacter clade is of global biogeochemical importance. Members of this clade produce sulfur-containing amino lipids (SALs) involved in biofilm formation and marine surface colonization processes. Despite their physiological relevance and abundance, SALs have only been explored through genomic mining approaches and lipidomic studies based on mass spectrometry, which left the relative and absolute structures of SALs unresolved, hindering progress in biochemical and functional investigations. Herein, we report the structural revision of a new group of SALs, which we named cysteinolides, using a combination of analytical techniques, isolation and degradation experiments and total synthetic efforts. Contrary to the previously proposed homotaurine-based structures, cysteinolides are composed of an N,O-acylated cysteinolic acid-containing head group carrying various different (α-hydroxy)carboxylic acids. We also performed the first validated targeted-network based analysis, which allowed us to map the distribution and structural diversity of cysteinolides across bacterial lineages. Beyond offering structural insight, our research provides SAL standards and validated analytical data. This information holds significance for forthcoming investigations into bacterial sulfonolipid metabolism and biogeochemical nutrient cycling within marine environments.
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Affiliation(s)
- Dávid Roman
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
- Anti-Infectives from Microbiota Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) Campus E8.1, 66123, Saarbrücken, Germany
| | - Philippe Meisinger
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
- Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
| | | | - Chia-Chi Peng
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
- Anti-Infectives from Microbiota Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) Campus E8.1, 66123, Saarbrücken, Germany
| | - Lukas K Peltner
- Department of Pharmaceutical/Medicinal Chemistry Institute of Pharmacy-, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743, Jena, Germany
| | - Paul M Jordan
- Department of Pharmaceutical/Medicinal Chemistry Institute of Pharmacy-, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743, Jena, Germany
| | - Veit Haensch
- Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
| | - Sebastian Götze
- Anti-Infectives from Microbiota Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) Campus E8.1, 66123, Saarbrücken, Germany
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry Institute of Pharmacy-, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743, Jena, Germany
| | - Christian Hertweck
- Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
- Institute of Microbiology-, Friedrich-Schiller-University Jena, 07743, Jena, Germany
| | - Yin Chen
- School of Biosciences, University of Birmingham, Edgbaston, B15 2TT, United Kingdom
| | - Christine Beemelmanns
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), Beutenbergstrasse 11 A, 07745, Jena, Germany
- Anti-Infectives from Microbiota Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) Campus E8.1, 66123, Saarbrücken, Germany
- Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
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2
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Yuan F, Yang L, Hsiao SH, Herndon NL, Gaulke CA, Fang Y. A neonatal piglet model reveals interactions between nasal microbiota and influenza A virus pathogenesis. Virology 2024; 592:109996. [PMID: 38301448 DOI: 10.1016/j.virol.2024.109996] [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: 09/12/2023] [Revised: 12/17/2023] [Accepted: 01/15/2024] [Indexed: 02/03/2024]
Abstract
While vaccination and therapeutics for prevention/treatment of influenza are available, new strategies are needed to combat influenza disease in susceptible populations, particularly young children and newborns. Host associated microbiota play an important role in modulating the virulence of numerous pathogens, including the influenza A virus. In this study, we examined microbiome-influenza interactions in a neonatal piglet model system. The nasal microbiome of newborn piglets was longitudinally sampled before and after intranasal infection with recombinant viruses expressing hemagglutinins (HAs) derived from distinct zoonotic H1 subtypes. We found that viruses expressing different parental HAs manifested unique patterns of pathogenicity, and varied impacts on microbial community diversity. Despite these virus specific differences, a consistent microbial signature of viral infection was detected. Our results indicate that influenza A virus infection associates with the restructuring of nasal microbiome and such shifts in microbial diversity may contribute to outcomes of viral infection in neonatal piglets.
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Affiliation(s)
- Fangfeng Yuan
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA
| | - Lufan Yang
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA
| | - Shih-Hsuan Hsiao
- Veterinary Diagnostic Laboratory, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61802, USA
| | - Nicole L Herndon
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61802, USA
| | - Christopher A Gaulke
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA; Personalized Nutrition Initiative, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA; Cancer Center at Illinois, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA.
| | - Ying Fang
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL, 61802, USA.
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3
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Bai X, Ya R, Tang X, Cai M. Role and interaction of bacterial sphingolipids in human health. Front Microbiol 2023; 14:1289819. [PMID: 37937219 PMCID: PMC10626005 DOI: 10.3389/fmicb.2023.1289819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023] Open
Abstract
Sphingolipids, present in both higher animals and prokaryotes, involving in cell differentiation, pathogenesis and apoptosis in human physiological health. With increasing attention on the gut microbiome and its impact on wellbeing, there is a renewed focus on exploring bacterial sphingolipids. This review aims to consolidate the current understanding of bacterial sphingolipids and their impact on host health. Compared to mammalian sphingolipids, bacterial sphingolipids are characterized by odd chain lengths due to the presence of branched alkyl chains. Additionally, intestinal microbial sphingolipids can migrate from the gut to various host organs, affecting the immune system and metabolism. Furthermore, the intricate interplay between dietary sphingolipids and the gut microbiota is explored, shedding light on their complex relationship. Despite limited knowledge in this area, this review aims to raise awareness about the importance of bacterial sphingolipids and further our understanding of more uncharacterized bacterial sphingolipids and their significant role in maintaining host health.
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Affiliation(s)
- Xiaoye Bai
- School of Medicine, Sun Yat-sen University, Shenzhen, China
- Shenzhen Bay Laboratory, Institute of Chemical Biology, Shenzhen, China
| | - Ru Ya
- Inner Mongolia Academy of Science and Technology, Hohhot, China
| | - Xiaoyu Tang
- Shenzhen Bay Laboratory, Institute of Chemical Biology, Shenzhen, China
| | - Mingwei Cai
- Shenzhen Bay Laboratory, Institute of Chemical Biology, Shenzhen, China
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4
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Hai Q, Wang J, Kang W, Cheng S, Li J, Lyu N, Li Y, Luo Z, Liu Z. Metagenomic and metabolomic analysis of changes in intestinal contents of rainbow trout ( Oncorhynchus mykiss) infected with infectious hematopoietic necrosis virus at different culture water temperatures. Front Microbiol 2023; 14:1275649. [PMID: 37908544 PMCID: PMC10614001 DOI: 10.3389/fmicb.2023.1275649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/02/2023] [Indexed: 11/02/2023] Open
Abstract
Infectious hematopoietic necrosis (IHN) is a major disease that limits the culture of rainbow trout. In practical production, it has been found that the temperature of the culture water is a crucial factor affecting its mortality. Currently, little is known about how temperature affects the immune response of rainbow trout gut microbiota and metabolites to IHNV. In this study, our main objective is to analyze the changes in gut microorganisms of rainbow trout (juvenile fish with a consistent genetic background) after 14 days of infection with IHNV (5 × 105 pfu/fish) at 12-13°C (C: injected with saline, A: injected with IHNV) and 16-17°C (D: injected with saline, B: injected with IHNV) using metagenomic and metabolomic analyses, and to screen for probiotics that are effective against IHNV. The results showed that infection with IHNV at 12-13°C caused Eukaryote loss. Compared to Group C, Group A showed a significant increase in harmful pathogens, such as Yersiniaceae, and a significant alteration of 4,087 gut metabolites. Compared to group D, group B showed a significant increase in the abundance of Streptococcaceae and Lactococcus lactis, along with significant changes in 4,259 intestinal metabolites. Compared with their respective groups, the levels of two immune-related metabolites, 1-Octadecanoyl-glycero-3-phosphoethanolamine and L-Glutamate, were significantly upregulated in groups A and B. Compared to group B, Group A showed significantly higher pathogenic bacteria including Aeromonas, Pseudomonas, and Yersiniaceae, while group B showed a significant increase in Streptococcaceae and Lactococcus lactis. Additionally, there were 4,018 significantly different metabolites between the two groups. Interestingly, 1-Octadecanoyl-sn-glycero-3-phosphoethanolamine and L-Glutamate were significantly higher in group A than in group B. Some of the different metabolites in C vs. A are correlated with Fomitopsis pinicola, while in D vs. B they were correlated with Lactococcus raffinolactis, and in A vs. B they were correlated with Hypsizygus marmoreus. This study exposed how rainbow trout gut microbiota and metabolites respond to IHNV at different temperatures, and screens beneficial bacteria with potential resistance to IHN, providing new insights and scientific basis for the prevention and treatment of IHN.
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Affiliation(s)
| | - Jianfu Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
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5
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Older EA, Zhang J, Ferris ZE, Xue D, Zhong Z, Mitchell MK, Madden M, Wang Y, Chen H, Nagarkatti P, Nagarkatti M, Fan D, Ellermann M, Li YX, Li J. Biosynthetic Enzyme-guided Disease Correlation Connects Gut Microbial Metabolites Sulfonolipids to Inflammatory Bowel Disease Involving TLR4 Signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.16.533047. [PMID: 36993324 PMCID: PMC10055157 DOI: 10.1101/2023.03.16.533047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The trillions of microorganisms inhabiting the human gut are intricately linked to human health. At the species abundance level, correlational studies have connected specific bacterial taxa to various diseases. While the abundances of these bacteria in the gut serve as good indicators for disease progression, understanding the functional metabolites they produce is critical to decipher how these microbes influence human health. Here, we report a unique biosynthetic enzyme-guided disease correlation approach to uncover microbial functional metabolites as potential molecular mechanisms in human health. We directly connect the expression of gut microbial sulfonolipid (SoL) biosynthetic enzymes to inflammatory bowel disease (IBD) in patients, revealing a negative correlation. This correlation is then corroborated by targeted metabolomics, identifying that SoLs abundance is significantly decreased in IBD patient samples. We experimentally validate our analysis in a mouse model of IBD, showing that SoLs production is indeed decreased while inflammatory markers are increased in diseased mice. In support of this connection, we apply bioactive molecular networking to show that SoLs consistently contribute to the immunoregulatory activity of SoL-producing human microbes. We further reveal that sulfobacins A and B, two representative SoLs, primarily target Toll-like receptor 4 (TLR4) to mediate immunomodulatory activity through blocking TLR4's natural ligand lipopolysaccharide (LPS) binding to myeloid differentiation factor 2, leading to significant suppression of LPS-induced inflammation and macrophage M1 polarization. Together, these results suggest that SoLs mediate a protective effect against IBD through TLR4 signaling and showcase a widely applicable biosynthetic enzyme-guided disease correlation approach to directly link the biosynthesis of gut microbial functional metabolites to human health.
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6
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Folz J, Culver RN, Morales JM, Grembi J, Triadafilopoulos G, Relman DA, Huang KC, Shalon D, Fiehn O. Human metabolome variation along the upper intestinal tract. Nat Metab 2023; 5:777-788. [PMID: 37165176 PMCID: PMC10229427 DOI: 10.1038/s42255-023-00777-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 03/03/2023] [Indexed: 05/12/2023]
Abstract
Most processing of the human diet occurs in the small intestine. Metabolites in the small intestine originate from host secretions, plus the ingested exposome1 and microbial transformations. Here we probe the spatiotemporal variation of upper intestinal luminal contents during routine daily digestion in 15 healthy male and female participants. For this, we use a non-invasive, ingestible sampling device to collect and analyse 274 intestinal samples and 60 corresponding stool homogenates by combining five mass spectrometry assays2,3 and 16S rRNA sequencing. We identify 1,909 metabolites, including sulfonolipids and fatty acid esters of hydroxy fatty acids (FAHFA) lipids. We observe that stool and intestinal metabolomes differ dramatically. Food metabolites display trends in dietary biomarkers, unexpected increases in dicarboxylic acids along the intestinal tract and a positive association between luminal keto acids and fruit intake. Diet-derived and microbially linked metabolites account for the largest inter-individual differences. Notably, two individuals who had taken antibiotics within 6 months before sampling show large variation in levels of bioactive FAHFAs and sulfonolipids and other microbially related metabolites. From inter-individual variation, we identify Blautia species as a candidate to be involved in FAHFA metabolism. In conclusion, non-invasive, in vivo sampling of the human small intestine and ascending colon under physiological conditions reveals links between diet, host and microbial metabolism.
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Affiliation(s)
- Jacob Folz
- West Coast Metabolomics Center, University of California, Davis, CA, USA
| | - Rebecca Neal Culver
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Jessica Grembi
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | | | - David A Relman
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Infectious Diseases Section, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Kerwyn Casey Huang
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | | | - Oliver Fiehn
- West Coast Metabolomics Center, University of California, Davis, CA, USA.
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7
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Abstract
Metabolites produced by commensal gut microbes impact host health through their recognition by the immune system and their influence on numerous metabolic pathways. Notably, the gut microbiota can both transform and synthesize lipids as well as break down dietary lipids to generate secondary metabolites with host modulatory properties. Although lipids have largely been consigned to structural roles, particularly in cell membranes, recent research has led to an increased appreciation of their signaling activities, with potential impacts on host health and physiology. This review focuses on studies that highlight the functions of bioactive lipids in mammalian physiology, with a special emphasis on immunity and metabolism.
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Affiliation(s)
- Eric M Brown
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Blavatnik Institute, Boston, MA 02115, USA
| | - Ramnik J Xavier
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
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8
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Raguž L, Peng C, Rutaganira FUN, Krüger T, Stanišić A, Jautzus T, Kries H, Kniemeyer O, Brakhage AA, King N, Beemelmanns C. Total Synthesis and Functional Evaluation of IORs, Sulfonolipid-based Inhibitors of Cell Differentiation in Salpingoeca rosetta. Angew Chem Int Ed Engl 2022; 61:e202209105. [PMID: 35901418 PMCID: PMC9825905 DOI: 10.1002/anie.202209105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 01/11/2023]
Abstract
The choanoflagellate Salpingoeca rosetta is an important model system to study the evolution of multicellularity. In this study we developed a new, modular, and scalable synthesis of sulfonolipid IOR-1A (six steps, 27 % overall yield), which acts as bacterial inhibitor of rosette formation in S. rosetta. The synthesis features a decarboxylative cross-coupling reaction of a sulfonic acid-containing tartaric acid derivative with alkyl zinc reagents. Synthesis of 15 modified IOR-1A derivatives, including fluorescent and photoaffinity-based probes, allowed quantification of IOR-1A, localization studies within S. rosetta cells, and evaluation of structure-activity relations. In a proof of concept study, an inhibitory bifunctional probe was employed in proteomic profiling studies, which allowed to deduce binding partners in bacteria and S. rosetta. These results showcase the power of synthetic chemistry to decipher the biochemical basis of cell differentiation processes within S. rosetta.
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Affiliation(s)
- Luka Raguž
- Chemical Biology of Microbe-Host InteractionsLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | - Chia‐Chi Peng
- Chemical Biology of Microbe-Host InteractionsLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | | | - Thomas Krüger
- Molecular and Applied MicrobiologyLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | - Aleksa Stanišić
- Biosynthetic Design of Natural ProductsLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | - Theresa Jautzus
- Chemical Biology of Microbe-Host InteractionsLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | - Hajo Kries
- Biosynthetic Design of Natural ProductsLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | - Olaf Kniemeyer
- Molecular and Applied MicrobiologyLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany
| | - Axel A. Brakhage
- Molecular and Applied MicrobiologyLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany,Microbiology and Molecular BiologyInstitute of MicrobiologyFriedrich Schiller University (FSU)Neugasse 2507743JenaGermany
| | - Nicole King
- Life Sciences AdditionUniversity of California, BerkeleyBerkeleyCA 94720USA
| | - Christine Beemelmanns
- Chemical Biology of Microbe-Host InteractionsLeibniz Institute for Natural Product Research and Infection BiologyHans-Knöll-Institute (HKI)Beutenbergstraße 11a07745JenaGermany,Biochemistry of Microbial MetabolismInstitute of BiochemistryLeipzig UniversityJohannisallee 21–2304103LeipzigGermany
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9
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2022. [PMID: 35929527 DOI: 10.1039/d2np90026b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as hyperispirone A from Hypericum beanii.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, UK, G12 8QQ.
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10
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Raguž L, Peng CC, Rutaganira FUN, Krüger T, Stanisic A, Jautzus T, Kries H, Kniemeyer O, Brakhage A, King N, Beemelmanns C. Total Synthesis and Functional Evaluation of IORs, Sulfonolipid‐based Inhibitors of Cell Differentiation in Salpingoeca rosetta. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Luka Raguž
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Chemical Biology GERMANY
| | - Chia-Chi Peng
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Chemical Biology GERMANY
| | | | - Thomas Krüger
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Molecular and Applied Microbiology GERMANY
| | - Aleksa Stanisic
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biosynthetic Design of Natural Products GERMANY
| | - Theresa Jautzus
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Chemical Biology GERMANY
| | - Hajo Kries
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biosynthetic Design of Natural Products, GERMANY
| | - Olaf Kniemeyer
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Molecular and Applied Microbiology GERMANY
| | - Axel Brakhage
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV Hans-Knöll-Institut: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Molecular and Applied Microbiology GERMANY
| | - Nicole King
- UC Berkeley: University of California Berkeley Life Science UNITED STATES
| | - Christine Beemelmanns
- Universität Leipzig: Universitat Leipzig Institute of Biochemistry Beutenbergstr. 11a07745Deutschland 07745 Jena GERMANY
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11
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Radka CD, Miller DJ, Frank MW, Rock CO. Biochemical characterization of the first step in sulfonolipid biosynthesis in Alistipes finegoldii. J Biol Chem 2022; 298:102195. [PMID: 35760102 PMCID: PMC9304779 DOI: 10.1016/j.jbc.2022.102195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 12/01/2022] Open
Abstract
Sulfonolipids are unusual lipids found in the outer membranes of Gram-negative bacteria in the phylum Bacteroidetes. Sulfonolipid and its deacylated derivative, capnine, are sulfur analogs of ceramide-1-phosphate and sphingosine-1-phosphate, respectively; thus, sulfonolipid biosynthesis is postulated to be similar to the sphingolipid biosynthetic pathway. Here, we identify the first enzyme in sulfonolipid synthesis in Alistipes finegoldii, an anaerobic gut commensal bacterium, as the product of the alfi_1224 gene, cysteate acyl-acyl carrier protein (ACP) transferase (SulA). We show SulA catalyzes the condensation of acyl-ACP and cysteate (3-sulfo-alanine) to form 3-ketocapnine. Acyl-CoA is a poor substrate. We show SulA has a bound pyridoxal phosphate (PLP) cofactor that undergoes a spectral redshift in the presence of cysteate, consistent with the transition of the lysine-aldimine complex to a substrate-aldimine complex. Furthermore, the SulA crystal structure shows the same prototypical fold found in bacterial serine palmitoyltransferases (Spt), enveloping the PLP cofactor bound to Lys251. We observed the SulA and Spt active sites are identical except for Lys281 in SulA, which is an alanine in Spt. Additionally, SulA(K281A) is catalytically inactive, but binds cysteate and forms the external aldimine normally, highlighting the structural role of the Lys281 side chain in walling off the active site from bulk solvent. Finally, the electropositive groove on the protein surface adjacent to the active site entrance provides a landing pad for the electronegative acyl-ACP surface. Taken together, these data identify the substrates, products, and mechanism of SulA, the PLP-dependent condensing enzyme that catalyzes the first step in sulfonolipid synthesis in a gut commensal bacterium.
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Affiliation(s)
- Christopher D Radka
- Departments of, Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, 38015, USA.
| | - Darcie J Miller
- Departments of, Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, 38015, USA
| | - Matthew W Frank
- Departments of, Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, 38015, USA
| | - Charles O Rock
- Departments of, Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, 38015, USA
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