Abstract
The solution structure of the leader sequence of the patellamide precursor peptide was analysed by using CD and determined with NOE-restrained molecular dynamics calculations. This leader sequence is highly conserved in the precursor peptides of some other cyanobactins harbouring heterocycles, and is assumed to play a role in targeting the precursor peptide to the post-translational machinery. The sequence was observed to form an a-helix spanning residues 13-28 with a hydrophobic surface on one side of the helix. This hydrophobic surface is proposed to be the site of the initial binding with modifying enzymes.
Original language | English |
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Pages (from-to) | 1867-1873 |
Number of pages | 7 |
Journal | ChemBioChem |
Volume | 11 |
Issue number | 13 |
Early online date | 16 Aug 2010 |
DOIs | |
Publication status | Published - 3 Sept 2010 |
Keywords
- biosynthesis
- cyanobactins
- patellamides
- peptides
- Prochloron
- protein secondary structure
- 2-dimensional NMR-spectroscopy
- carboxylation recognition site
- microcin B17
- mutational analysis
- lissoclinum-patella
- escherichia-coli
- natural-product
- gene-cluster