Results 81 to 90 of about 39,295 (245)

A Unified Approach for the Synthesis of Conformationally Locked and sp2‐sp3 Fused Hybrids

Chemistry – A European Journal, EarlyView.
This study presents a systematic platform to build rigid sp2–sp3 hybrids via benzyne cycloadditions. Arene‑fused bicyclic oxa‐, aza‐, and carbocycles are converted into medicinally relevant amino acids and applied to Enalapril analogues synthesis. The hybrids combine aromatic interactions with 3D rigidity, tuning lipophilicity, pKa, and solubility ...
Ervis Saraci, Federica Plavi, Giovanni Viscardi, Chad N. Ungarean, Massimo Boiocchi, Christophe Salome, Quentin Lefebvre, Thomas C. Fessard, David Sarlah   +8 more
wiley   +1 more source

Engineering Polyketide Synthases [PDF]

The Scientific World JOURNAL, 2002
Complex polyketides, exemplified by the molecules shown in Fig. 1, are produced mainly from a group of mycelia-forming bacteria belonging to the actinomycete family and have applications in medicine or agriculture. Worldwide sales of polyketides exceed $15 B annually.
openaire   +3 more sources

An Oxetane-Based Polyketide Surrogate To Probe Substrate Binding in a Polyketide Synthase [PDF]

Journal of the American Chemical Society, 2018
Polyketides are a large class of bioactive natural products with a wide range of structures and functions. Polyketides are biosynthesized by large, multidomain enzyme complexes termed polyketide synthases (PKSs). One of the primary challenges when studying PKSs is the high reactivity of their poly-β-ketone substrates.
Bryan D. Ellis, Jacob C. Milligan, Alexander R. White, Vy Duong, Pilar X. Altman, Lina Y. Mohammed, Matthew P. Crump, John Crosby, Ray Luo, Christopher D. Vanderwal, Shiou-Chuan Tsai   +10 more
openaire   +5 more sources

MCAT is not required for in vitro polyketide synthesis in a minimal actinorhodin polyketide synthase from Streptomyces coelicolor [PDF]

, 1998
Background: It has been proposed that Streptomyces malonyl CoA:holo acyl carrier protein transacylases (MCATs) provide a link between fatty acid and polyketide biosynthesis. Two recent studies have provided evidence that the presence of MCAT is essential
Simpson, Thomas J., Crosby, John, Matharu, Anne-Lise, Byrom, Kate J., Cox, Russell J.   +4 more
core   +1 more source

Secondary Metabolites from Marine-Derived Fungus Penicillium rubens BTBU20213035

Journal of Fungi
Two new polyketide derivatives, penirubenones A and B (1 and 2), and two naturally rare amino-bis-tetrahydrofuran derivatives, penirubenamides A and B (3 and 4), together with nine known compounds (5–13) were isolated from the marine-derived fungus ...
Xiuli Xu, Yifei Dong, Jinpeng Yang, Long Wang, Linlin Ma, Fuhang Song, Xiaoli Ma   +6 more
doaj   +1 more source

Discovery of Marine Natural Products as Promising Antibiotics against Pseudomonas aeruginosa

Marine Drugs, 2022
Pseudomonas aeruginosa, one of the most intractable Gram-negative bacteria, has become a public health threat due to its outer polysaccharide layer, efflux transporter system, and high level of biofilm formation, all of which contribute to multi-drug ...
Haoran Li, Mireguli Maimaitiming, Yue Zhou, Huaxuan Li, Pingyuan Wang, Yang Liu, Till F. Schäberle, Zhiqing Liu, Chang-Yun Wang   +8 more
doaj   +1 more source

Seed lipid profiles of perennial ryegrass: Global patterns and differentiation of ryegrass cultivars and Epichloë endophytes

Grassland Research, EarlyView.
Seed lipid profiles from three ryegrass cultivars infected with AR501 show distinct changes in the medium‐chain diacylglycerols, triacylglycerols and sphingolipids. The differential peal LN745.5052_5.78 can be identified as PG 16:0_18:2 with the supporting ms2 fragmentation spectrum. Abstract Background Forage perennial ryegrass (Lolium perenne L.) has
Mingshu Cao, Wei Zhang, Wade J. Mace, Christine R. Voisey, David E. Hume, Richard D. Johnson, Sushma Prakash   +6 more
wiley   +1 more source

Incidence Trends of Early‐Onset Colorectal Cancer in Germany: A Registry‐Based Study From 2003 to 2023

International Journal of Cancer, EarlyView.
The evidence on the rising incidence of colorectal cancer among adults below 50 years of age largely stems from the United States. Using high‐quality cancer registry data for the 2003–2023 period in Germany, this study found a moderate increase of early‐onset colorectal cancer incidence that was limited to those aged 20–39 years and more pronounced ...
Sven Voigtländer, Hiltraud Kajüter, Ina Wellmann, Andras Szentkirályi, Bernd Holleczek, Volker Arndt, Jacqueline Müller‐Nordhorn, the ALSTER Working Group, Josephine Kanbach, Sabine Luttmann, Meike Ressing, Cécile Ronckers, Soo‐Zin Kim‐Wanner, Alice Nennecke, Frederik Peters, Klaus Kraywinkel, Roxana Müller‐Eberstein, Hannah Baltus, Paula Grieger, Antje Schliemann, Annika Waldmann   +20 more
wiley   +1 more source

Exploitation of Aspergillus terreus for the Production of Natural Statins

Journal of Fungi, 2016
The fungus Aspergillus (A.) terreus has dominated the biological production of the “blockbuster” drugs known as statins. The statins are a class of drugs that inhibit HMG-CoA reductase and lead to lower cholesterol production.
Mishal Subhan, Rani Faryal, Ian Macreadie   +2 more
doaj   +1 more source

Streptomyces lydicamycinicus sp. nov. and Its Secondary Metabolite Biosynthetic Gene Clusters for Polyketide and Nonribosomal Peptide Compounds

Microorganisms, 2020
(1) Background: Streptomyces sp. TP-A0598 derived from seawater produces lydicamycin and its congeners. We aimed to investigate its taxonomic status; (2) Methods: A polyphasic approach and whole genome analysis are employed; (3) Results: Strain TP-A0598 ...
Hisayuki Komaki, Akira Hosoyama, Yasuhiro Igarashi, Tomohiko Tamura   +3 more
doaj   +1 more source