Ferkinghoff-Borg, Jesper ; Fonslet, Jesper ; Andersen, Christian Beyschau ; Krishna, Sandeep ; Pigolotti, Simone ; Yagi, Hisashi ; Goto, Yuji ; Otzen, Daniel ; Jensen, Mogens H. (2010) Stop-and-go kinetics in amyloid fibrillation Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 82 (1). ISSN 1539-3755
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Official URL: https://doi.org/10.1103/PhysRevE.82.010901
Related URL: http://dx.doi.org/10.1103/PhysRevE.82.010901
Abstract
Many human diseases are associated with protein aggregation and fibrillation. We present experiments on in vitro glucagon fibrillation using total internal reflection fluorescence microscopy, providing real-time measurements of single-fibril growth. We find that amyloid fibrils grow in an intermittent fashion, with periods of growth followed by long pauses. The observed exponential distributions of stop and growth times support a Markovian model, in which fibrils shift between the two states with specific rates. Even if the individual rates vary considerably, we observe that the probability of being in the growing (stopping) state is very close to 1/4 (3/4) in all experiments.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 137537 |
| Deposited On: | 09 Sep 2025 06:50 |
| Last Modified: | 09 Sep 2025 06:50 |
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