期刊
FEBS LETTERS
卷 479, 期 3, 页码 141-145出版社
WILEY
DOI: 10.1016/S0014-5793(00)01888-3
关键词
silkmoth chorion protein; amyloid fibril; electron microscopy; X-ray diffraction; modeling
Chorion is the major component of silkmoth eggshell. More than 95%, of its dry mass consists of proteins that have remarkable mechanical and chemical properties protecting the oocyte and the developing embryo from a wide range of environmental hazards. We present data from electron microscopy (negative staining and shadowing), X-ray diffraction and modeling studies of synthetic peptide analogues of silkmoth chorion proteins indicating that chorion is a natural amyloid, The folding and self-assembly models of chorion peptides strongly support the beta-sheet helix model of amyloid fibrils proposed recently by Blake and Serpell [Structure 4 (1996) 989-998], (C) 2000 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved.
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