2004
DOI: 10.1101/gad.1177104
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Prions: proteins as genes and infectious entities

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Cited by 79 publications
(82 citation statements)
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“…By affecting the extent of this perturbation, the ratio of glycoforms may subtly modulate the PrP Sc conformation, resulting in an aggregate that preferentially recruits monomers with similar glycoform ratios. Thus, these structural effects could explain glycosylation-dependent strain diversity, in line with current thinking that prion strains are fully encoded in distinct conformations of ordered protein aggregates (2,11,13,35,41).…”
Section: Discussionmentioning
confidence: 54%
“…By affecting the extent of this perturbation, the ratio of glycoforms may subtly modulate the PrP Sc conformation, resulting in an aggregate that preferentially recruits monomers with similar glycoform ratios. Thus, these structural effects could explain glycosylation-dependent strain diversity, in line with current thinking that prion strains are fully encoded in distinct conformations of ordered protein aggregates (2,11,13,35,41).…”
Section: Discussionmentioning
confidence: 54%
“…Although in the case of fungal prions it is well established that the infectious entity is represented by classical amyloid fibrils (6,7) and structural data for these amyloid assemblies are rapidly accumulating (36,37), the picture for mammalian prions is less clear. In fact, little specific structural information is available for brain-derived PrP Sc beyond the evidence that it is resistant to proteolytic digestion (with the PK-resistant core usually starting around residue ϳ90) and low resolution optical spectroscopic data pointing to an increased content of ␤-sheet structure (14,15).…”
Section: Discussionmentioning
confidence: 99%
“…Although molecular details of such a mechanism of disease propagation remain largely unknown, the general principle of protein-based infectivity is supported by a wealth of experimental data (1)(2)(3)(4)(5)(6)(7). PrP C is a monomeric glycophosphatidylinositol-linked glycoprotein that is highly protease-sensitive and soluble in nonionic detergents.…”
mentioning
confidence: 99%
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“…B настоящее время большой интерес вызывает гипотеза, согласно которой гибель гибридных аскос-пор связана с трансмиссией прионной инфекции. При-оны -самораспространяющиеся, амилоидобразующие инфекционные белки, были описаны в клетках млекопи-тающих и грибов (Prusiner, 1998;Wickner et al, 1999Wickner et al, , 2004. Наблюдение, сделанное Bernet (Bernet, 1965) о связи гена het-s у P. anserina с явлением «spore-killing», и обнаружение того, что этот же ген het-s кодирует при-онные белки (Coustou et Так как количество выживших спор межштаммовых гибридов в наших экспериментах достаточно низкое, то, скорее всего, гены, влияющие на поведение прионов, тесно сцеплены, и среди мейотического потомства пре-обладают тетрады родительского дитипа.…”
Section: результаты и обсуждениеunclassified