Self-assembled amyloid fibrils with controllable conformational heterogeneity.

Citation data:

Scientific reports, ISSN: 2045-2322, Vol: 5, Issue: 1, Page: 16220

Publication Year:
2015
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Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/17943
PMID:
26592772
DOI:
10.1038/srep16220
PMCID:
PMC4655422
Author(s):
Lee, Gyudo, Lee, Wonseok, Lee, Hyungbeen, Lee, Chang Young, Eom, Kilho, Kwon, Taeyun
Publisher(s):
Springer Nature, NATURE PUBLISHING GROUP
Tags:
Multidisciplinary, GLOBULAR-PROTEINS, ORGANIC-SYNTHESIS, MICROWAVE, AGGREGATION, NANOFIBRILS, PRIONS, MEMORY
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article description
Amyloid fibrils are a hallmark of neurodegenerative diseases and exhibit a conformational diversity that governs their pathological functions. Despite recent findings concerning the pathological role of their conformational diversity, the way in which the heterogeneous conformations of amyloid fibrils can be formed has remained elusive. Here, we show that microwave-assisted chemistry affects the self-assembly process of amyloid fibril formation, which results in their conformational heterogeneity. In particular, microwave-assisted chemistry allows for delicate control of the thermodynamics of the self-assembly process, which enabled us to tune the molecular structure of β-lactoglobulin amyloid fibrils. The heterogeneous conformations of amyloid fibrils, which can be tuned with microwave-assisted chemistry, are attributed to the microwave-driven thermal energy affecting the electrostatic interaction during the self-assembly process. Our study demonstrates how microwave-assisted chemistry can be used to gain insight into the origin of conformational heterogeneity of amyloid fibrils as well as the design principles showing how the molecular structures of amyloid fibrils can be controlled.

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