Absence of secondary structure in a carbopeptoid tetramer of a trans-5-aminomethyl-tetrahydrofuran-2-carboxylate
作者:Martin D. Smith、Daniel D. Long、Angeles Martín、Daniel G. Marquess、Timothy D.W. Claridge、George W.J. Fleet
DOI:10.1016/s0040-4039(99)00109-4
日期:1999.3
Whereas trimers and tetramers of beta-C-D-arabinofuranosyl carbohydrate amino acids adopt well defined conformations based around a repealing beta-turn like structure, stabilised by (i, i-2) inter-residue hydrogen bonds, there is no indication of any secondary structure in the tetramer of the epimeric alpha-C-D-arabinoluranosyl carbohydrate amino acid, where the C-2 and C-5 substituents of the tetrahydrofuran ring are Irans to each other. (C) 1999 Elsevier Science Ltd. All rights reserved.