Four new microginins, linear peptides from the cyanobacterium Microcystis aeruginosa
摘要:
Four new linear peptides, related to microginins 299-A (1) and 299-B (2), were isolated from the cyanobacterium Microcystis aeruginosa. Microginins 299-C (3) and 299-D (4), from M. aeruginosa (NIES-299), inhibited leucine aminopeptidase with IC50's of 2.0 and 6.4 mu g/mL, respectively. Microginins 99-A (5) and 99-B (6), from M. aeruginosa (NIES-99), did not inhibit leucine aminopeptidase. These structures were elucidated to be 3-6 on the basis of 2D NMR data and chemical degradation. (C) 1998 Elsevier Science Ltd. All rights reserved.
Four new microginins, linear peptides from the cyanobacterium Microcystis aeruginosa
摘要:
Four new linear peptides, related to microginins 299-A (1) and 299-B (2), were isolated from the cyanobacterium Microcystis aeruginosa. Microginins 299-C (3) and 299-D (4), from M. aeruginosa (NIES-299), inhibited leucine aminopeptidase with IC50's of 2.0 and 6.4 mu g/mL, respectively. Microginins 99-A (5) and 99-B (6), from M. aeruginosa (NIES-99), did not inhibit leucine aminopeptidase. These structures were elucidated to be 3-6 on the basis of 2D NMR data and chemical degradation. (C) 1998 Elsevier Science Ltd. All rights reserved.