Kinetic Intermediates in Amyloid Assembly
نویسندگان
چکیده
منابع مشابه
Kinetic intermediates in amyloid assembly.
In contrast to an expected Ostwald-like ripening of amyloid assemblies, the nucleating core of the Dutch mutant of the Aβ peptide of Alzheimer's disease assembles through a series of conformational transitions. Structural characterization of the intermediate assemblies by isotope-edited IR and solid-state NMR reveals unexpected strand orientation intermediates and suggests new nucleation mechan...
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Amyloid deposition is a hallmark of many diseases, such as the Alzheimer's disease. Numerous amyloidogenic proteins, including the islet amyloid polypeptide (IAPP) associated with type II diabetes, are natively unfolded and need to undergo conformational rearrangements allowing the formation of locally ordered structure(s) to initiate self-assembly. Recent studies have indicated that the format...
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Some amyloid-forming polypeptides are associated with devastating human diseases and others provide important biological functions. For both, oligomeric intermediates appear during amyloid assembly. Currently we have few tools for characterizing these conformationally labile intermediates and discerning what governs their benign versus toxic states. Here, we examine intermediates in the assembl...
متن کاملKinetic and equilibrium folding intermediates
O u r recent experim ents on the m olten globule state and o ther protein folding in term ediates lead to following conclusions: (i) the m olten globule is separated by in tram olecular first-order phase transitions from the native and unfolded states and therefore is a specific therm odynam ic state of protein molecules; (ii) the novel equilibrium folding in term ediate (the ‘pre-m olten g lob...
متن کاملKinetic and equilibrium folding intermediates.
Our recent experiments on the molten globule state and other protein folding intermediates lead to following conclusions: (i) the molten globule is separated by intramolecular first-order phase transitions from the native and unfolded states and therefore is a specific thermodynamic state of protein molecules; (ii) the novel equilibrium folding intermediate (the 'pre-molten globule' state) exis...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2014
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja508621b