| Literature DB >> 2388261 |
V Pavone1, B Di Blasio, A Santini, E Benedetti, C Pedone, C Toniolo, M Crisma.
Abstract
A synthetic, terminally blocked homodecapeptide from the C alpha, alpha-dimethylated glycyl residue alpha-aminoisobutyric acid has been analyzed by single-crystal X-ray diffraction and the structure refined to R = 0.073. The compound crystallizes as a perfect 3(10) helix, stabilized by eight consecutive intramolecular N-H . . . O = C hydrogen bonds. This is the first observation at atomic resolution of a regular polypeptide 3(10) helix as long as three complete turns.Entities:
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Year: 1990 PMID： 2388261 DOI： 10.1016/0022-2836(90)90279-U
Source DB: PubMed Journal: J Mol Biol ISSN： 0022-2836 Impact factor: 5.469