ICCAS OpenIR
The urea-dipeptides show stronger H-bonding propensity to nucleate beta-sheetlike assembly than natural sequence
Ke, Damei1,2; Zhan, Chuanlang1; Li, Xiao1,2; Li, Alexander. D. Q.3; Yao, Jiannian1
2009-09-26
Source PublicationTETRAHEDRON
ISSN0040-4020
Volume65Issue:39Pages:8269-8276
AbstractIn this article, we report the distinct solution behavior of a set of urea-dipeptides to that of natural sequence. The urea-dipeptides adopt beta-folding conformations and form into beta-sheetlike assembly in chloroform. Most surprisedly, the urea-dipeptides tend to form interpeptide H-bonding interactions even at a concentration of as low as 0 1 mM, while the natural sequence shows H-bonding propensity at a concentration of about 7 mM, indicating that the urea-dipeptides Show Much stronger H-bonding propensity to nucleate formation of beta-sheetlike assembly than the natural sequence CD spectra reveal that the investigated urea-dipeptides have two negative CD bands, respectively, around 217 nm and 224 nm, supporting the beta-folding conformations and in turn formation of beta-sheetlike assembly. The beta-sheetlike assembly is also confirmed by the XRD reflections, which give two typical d-spacings of 12 7 and 4 8 angstrom, respectively, corresponding to stacking periodicity of the beta-sheets and the spacing between peptide backbones running orthogonal to the beta-sheet axis. (C) 2009 Elsevier Ltd All rights reserved
DOI10.1016/j.tet.2009.07.048
Indexed BySCI ; IC
Language英语
WOS IDWOS:000270121400027
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66772
Collection中国科学院化学研究所
Corresponding AuthorZhan, Chuanlang
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Lab Photochem, Inst Chem, PR-100190 Beijing, Peoples R China
2.Chinese Acad Sci, Grad Sch, PR-100039 Beijing, Peoples R China
3.Washington State Univ, Dept Chem, Pullman, WA 99164 USA
Recommended Citation
GB/T 7714
Ke, Damei,Zhan, Chuanlang,Li, Xiao,et al. The urea-dipeptides show stronger H-bonding propensity to nucleate beta-sheetlike assembly than natural sequence[J]. TETRAHEDRON,2009,65(39):8269-8276.
APA Ke, Damei,Zhan, Chuanlang,Li, Xiao,Li, Alexander. D. Q.,&Yao, Jiannian.(2009).The urea-dipeptides show stronger H-bonding propensity to nucleate beta-sheetlike assembly than natural sequence.TETRAHEDRON,65(39),8269-8276.
MLA Ke, Damei,et al."The urea-dipeptides show stronger H-bonding propensity to nucleate beta-sheetlike assembly than natural sequence".TETRAHEDRON 65.39(2009):8269-8276.
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