| Literature DB >> 12880326 |
Philip G Williams1, Wesley Y Yoshida, Richard E Moore, Valerie J Paul.
Abstract
A new cytotoxic peptide, which displayed an IC(50) value of 0.8 microM against KB cells, has been isolated from the marine cyanobacterium Symploca sp. The planar structure of tasiamide B (1), deduced by 2D NMR experiments, contains the unusual amino acid-derived residue 4-amino-3-hydroxy-5-phenylpentanoic acid (Ahppa). The configuration of 1 was deduced by HPLC analysis of degradation products.Entities:
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Year: 2003 PMID: 12880326 DOI: 10.1021/np030114z
Source DB: PubMed Journal: J Nat Prod ISSN: 0163-3864 Impact factor: 4.050