Anno2010
AutoriFerkinghoff-Borg J, Fonslet J, Andersen CB, Krishna S, Pigolotti S, Yagi H, Goto Y, Otzen D, Jensen MH
AbstractMany 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.
RivistaPhysical Review E
ISSN
Impact factor
Volume82
Pagina inizio010901
Pagina fine
Autori IBFChristian Beyschau ANDERSEN
Linee di Ricerca IBFMD.P01.002.001
Sedi IBFIBF.PA