Westaway D, Carlson G A, Prusiner S B
Dept of Neurology, University of California, San Francisco 94143, USA.
Trends Microbiol. 1995 Apr;3(4):141-7. doi: 10.1016/s0966-842x(00)88903-9.
Prions are infectious pathogens that cause fatal neurodegeneration in humans and animals and are composed largely, or entirely, of an aberrant isoform of the host-encoded prion protein (PrP). A post-translational process involving a conformational change in PrP is a significant feature of their replication. Differences in PrP sequences modify the incubation times, neuropathology and properties of prion 'strains'.
朊病毒是一种传染性病原体,可导致人类和动物发生致命的神经退行性变,其主要或完全由宿主编码的朊病毒蛋白(PrP)的异常异构体组成。涉及PrP构象变化的翻译后过程是其复制的一个重要特征。PrP序列的差异会改变朊病毒“毒株”的潜伏期、神经病理学和特性。