Conformational Heterogeneity of a Tripeptide in the Solid State and in Solution: Characterization of a g-Turn Containing Incipient Hairpin in Solution
作者:S. K. Maji、D. Haldar、A. Banerjee、Ch. Mukhopadhyay、A. Banerjee
DOI:10.1023/b:jory.0000029816.31278.7b
日期:2003.9
terminally blocked tripeptide Boc-β-Ala-Aib-β-Ala-OMe 1 with noncoded amino acids forms a novel type of hairpin structure containing a γ-turn instead of a conventional β-turn in the central loop region in solution. This new type structural motif was characterized by NMR and restraint molecular dynamics simulation study. In the solidstate peptide 1 adopts an extended backbone conformation and self-assembles