Abstract
The structure of a new cyclic octapeptide, axinellin C, (cyclo[Thr(1)-Val(2)-Pro(3)-Trp(4)-Pro(5)-Phe(6)-Pro(7)-Leu(8)]), with all-trans peptide bond geometry, was elucidated by a combination of 2D NMR methods and tandem mass spectrometry. The solution state conformation was determined by ROE restrained molecular dynamics calculations. The structural features were found to be similar to those of the crystal structure of the cyclic decapeptide, phakellistatin 8, despite differing peptide sequences. (C) 2002 Elsevier Science Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 7863-7868 |
Number of pages | 5 |
Journal | Tetrahedron |
Volume | 58 |
DOIs | |
Publication status | Published - 2002 |
Keywords
- natural products
- amino acids
- peptides
- Stylotella aurantium
- sponge
- nuclear magnetic resonance
- mass spectrometry
- restrained molecular dynamics
- solution conformation
- ASCIDIAN LISSOCLINUM-PATELLA
- ANTINEOPLASTIC AGENTS
- CONFORMATION
- GROWTH
- PHAKELLISTATIN-8
- CYCLOPEPTIDES
- ANTAMANIDE
- CARTERI