2. Academic Validation
  3. Microcyclamide, a cytotoxic cyclic hexapeptide from the cyanobacterium Microcystis aeruginosa

Microcyclamide, a cytotoxic cyclic hexapeptide from the cyanobacterium Microcystis aeruginosa

  • J Nat Prod. 2000 Sep;63(9):1315-7. doi: 10.1021/np000159p.
K Ishida 1,  H Nakagawa,  M Murakami
Affiliations

Affiliation

  • 1 Laboratory of Marine Biochemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan.
PMID: 11000050 DOI: 10.1021/np000159p
Abstract

Microcyclamide (1), a cytotoxic cyclic hexapeptide, was isolated from the cultured cyanobacterium Microcystis aeruginosa (NIES-298). Its structure was elucidated to be 1 on the basis of two-dimensional (1)H-(1)H, (1)H-(13)C, and (1)H-(15)N NMR correlation experiments and the HRFABMS measurement. The absolute stereochemistry of the asymmetric centers was determined by the Marfey's method. This peptide showed a moderate cytotoxicity against P388 murine leukemia cells.

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