Modelling charge interactions in the prion protein: predictions for pathogenesis

被引：14

作者：

Warwicker, J ^{[1
]}

机构：

[1] Inst Food Res, Reading Lab, Reading RG6 6BZ, Berks, England

来源：

FEBS LETTERS | 1999年 / 450卷 / 1-2期

关键词：

prion protein; pH-dependence; molecular modelling; protein electrostatic; transmissible spongiform encephalopathy;

D O I：

10.1016/S0014-5793(99)00428-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Calculations are presented for the pH-dependence of stability and membrane charge complementarity of prion protein fragments. The theoretical results are compared with reported characterisations of prion protein folding in vitro. Discussion of models for conformational change and pathogenesis in vivo leads to the prediction of amino acids that could mediate sensitivity to the endosomal pH and to a design strategy for recombinant prion proteins with an increased susceptibility to prion protein(Sc)-like properties in vitro, In this model, the protective effect of certain basic polymorphisms can be interpreted in terms of oligomerisation on a negatively-charged surface. (C) 1999 Federation of European Biochemical Societies.

引用

页码：144 / 148

页数：5

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