منابع مشابه
Bionanoelectronics: viruses show their good side.
V iruses have a bad reputation regardless of where we fi nd them — be they in our bodies or in our computers. But on page 72 of this issue, Yang Yang and colleagues at the University of California, Los Angeles1 report that tobacco mosaic viruses (TMV) with platinum nanoparticles attached to them could be used as a nanoscale memory device that can be switched on and off electronically. Even thou...
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Fluctuating asymmetry (FA), the small random deviations from perfect morphological symmetry that result during development, is ubiquitous throughout the animal kingdom. In many species, FA seems to play a role in mate choice, perhaps because it signals an individual's genetic quality and health. However, the relationship between an individual's FA and behaviour is generally unknown: what do mor...
متن کاملFundamentals of prions and their inactivation (review).
Prion is an infectious particle composed of an abnormal isoform of the prion protein (PrPSc) and causes prion diseases such as bovine spongiform encephalopathy (BSE), Creutzfeldt-Jakob disease (CJD) and scrapie. Host cells express cellular prion protein (PrPC), which plays roles in normal functions such as anti-oxidative stress. PrPSc is derived from PrPC and produced by conformational conversi...
متن کاملYeast Prions and Their Prion-Forming Domain
The focus of research on yeast prions is now moving to exploit this established and highly tractable model system to elucidate the molecular basis of prion conversion and to extrapolate these findings to mammalian prions. This of course raises the question of whether United Kingdom such extrapolation is valid. Yeast and Mammalian Prion Conversion: A Common Mechanism? Over a period of some 25 ye...
متن کاملTrypanosomes show their commitment
Pek et al. describe how a stable, intron-derived RNA regulates the expression of its host gene during Drosophila embryogenesis. Once they are spliced out of nascent mRNAs, noncoding intron sequences are usually degraded rapidly. At least in Xenopus eggs and human cell lines, however, some intronic RNAs persist for long periods, although the function of these stable intronic sequence (sis) RNAs ...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2008
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.1813iti1