Chain‐length dependence for secondary structure formation of homo‐oligopep tides fromε‐tert.‐butyloxycarbonyl‐L‐lysine with a lipophilicC‐terminal group
作者:
Claudio Toniolo,
Gian Maria Bonora,
Immanuel F. Lüscher,
Conrad H. Schneider,
期刊:
International Journal of Peptide and Protein Research
(WILEY Available online 1984)
卷期:
Volume 23,
issue 1
页码: 47-54
ISSN:0367-8377
年代: 1984
DOI:10.1111/j.1399-3011.1984.tb02691.x
出版商: Blackwell Publishing Ltd
关键词: Boc‐substituted oligolysines;circular dichroism;infrared absorption;secondary‐structure formation
数据来源: WILEY
摘要:
A solid‐state and solution analysis of the homo‐oligopeptides from ε‐tert.‐butyloxycarbonyl‐L‐lysine withp‐oxymethylbenzylcholestan‐3β‐yl succinate asC‐terminal group, using infrared absorption and circular dichroism, is described. The occurrence of intermolecular β‐structure is seen in the solid state and in solvents of low polarity, e.g. methylene chloride, for peptides of intermediate size (from pentamer to decamer). Conversely, the eicosapeptide exhibits a high percentage of α‐helical structure both in the solid state and in 2, 2, 2‐trifluoroethanol. The influence of theC‐terminal group on the conformational preferences of the ε‐blocked homo‐oligolysines in the solid state and in
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