5129-59-9Relevant articles and documents
Lutoside: An acyl-1-(Acyl-6'-mannobiosyl)-3-glycerol isolated from the Sponge-associated bacterium Micrococcus luteus
Bultel-Ponce, Valerie,Debitus, Cecile,Blond, Alain,Cerceau, Claude,Guyot, Michele
, p. 5805 - 5808 (1997)
Lutoside, an unusual acyl-1-(acyl-6'-mannobiosyl)-3-glycerol 1 was isolated from the sponge-associated bacterial strain Microccocus luteus. Structure elucidation was performed by spectroscopic analysis and chemical transformations.
Structural identification of antibacterial lipids from Amazonian palm tree endophytes through the molecular network approach
Barthélemy, Morgane,Elie, Nicolas,Pellissier, Léonie,Wolfender, Jean-Luc,Stien, Didier,Touboul, David,Eparvier, Véronique
, (2019/07/02)
A library of 197 endophytic fungi and bacteria isolated from the Amazonian palm tree Astrocaryum sciophilum was extracted and screened for antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA). Four out of five antibacterial ethyl acetate extracts were also cytotoxic for the MRC-5 cells line. Liquid chromatography coupled to tandem mass spectrometry (UPHLC-HRMS/MS) analyses combined with molecular networking data processing were carried out to allow the identification of depsipeptides and cyclopeptides responsible for the cytotoxicity in the dataset. Specific ion clusters from the active Luteibacter sp. extract were also highlighted using an MRSA activity filter. A chemical study of Luteibacter sp. was conducted leading to the structural characterization of eight fatty acid exhibiting antimicrobial activity against MRSA in the tens of μg/mL range.
Structures of topostins, DNA topoisomerase I inhibitors of bacterial origin
Nemoto, Takayuki,Ojika, Makoto,Takahata, Yoshinori,Andoh, Toshiwo,Sakagami, Youji
, p. 2683 - 2690 (2007/10/03)
The structures of topostins, a novel type of mammalian DNA topoisomerase I inhibitors isolated from the bacterium Flexibacter topostinus sp. nov., have remained unknown. Reexamination of the production of topostins resulted in the isolation of original topostins B (B553 (1) and B567 (2)) and new related compounds named topostins D (D640 (3) and D654 (4)). Their structures, including the absolute stereochemistry, were determined by spectroscopic analyses and chemical degradations. These substances are lipid-containing amino acids and peptides.