title: Anabaenopeptins G and H, potent carboxypeptidase A inhibitors from the cyanobacterium Oscillatoria agardhii (NIES-595).
abstract: Anahaenopeptins G (1) and H (2) were isolated from the cultured cyanobacterium Oscillatoria agardhii (NIES-595) as potent carboxypeptidase A (CPA) inhibitors. The gross structure of 1 and 2 were established by spectroscopic analysis including the 2D NMR technique and the absolute configurations of 1 and 2 were determined by the spectral and chemical methods. 1 and 2 inhibited CPA with IC50's of 0.0018 and 3.4 microg/mL, respectively.
authors.affiliation: Laboratory of Marine Biochemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Itou
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: K
authors.initials: K
authors.lastname: Ishida
authors.forename: M
authors.initials: M
authors.lastname: Murakami
mesh_terms: D002268:Carboxypeptidases / Q000037:antagonists & inhibitors*; D043422:Carboxypeptidases A; D000458:Cyanobacteria / Q000737:chemistry*; D020128:Inhibitory Concentration 50; D009682:Magnetic Resonance Spectroscopy; D010456:Peptides, Cyclic / Q000737:chemistry*
chemical_list: D010456:Peptides, Cyclic; C119404:anabaenopeptin G; C120628:anabaenopeptin H; D002268:Carboxypeptidases; D043422:Carboxypeptidases A