Assuntos
Autofagia , Metabolismo Energético , Espécies Reativas de Oxigênio/metabolismo , Transporte de Elétrons/genética , Glucose/deficiência , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Mitocôndrias/genética , Mitocôndrias/metabolismo , Fosforilação , Proteínas Serina-Treonina Quinases/metabolismo , Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/metabolismoRESUMO
A super-carbon-chain compound, named gibbosol C, featuring a polyoxygenated C70-linear-carbon-chain backbone encompassing two acyclic polyol chains, was obtained from the South China Sea dinoflagellate Amphidinium gibbosum. Its planar structure was elucidated by extensive NMR investigations, whereas its absolute configurations, featuring the presence of 36 carbon stereocenters and 30 hydroxy groups, were successfully established by comparison of NMR data of the ozonolyzed products with those of gibbosol A, combined with J-based configuration analysis, Kishi's universal NMR database, and the modified Mosher's MTPA ester method. Multi-segment modification was revealed as the smart biosynthetic strategy for the dinoflagellate to create remarkable super-carbon-chain compounds with structural diversity.
