POWER SPECTRA AND COOPERATIVITY OF A CALCIUM-REGULATED CATION CHANNEL

Authors
MCGEOCH MW MCGEOCH JEM
Citation
Mw. Mcgeoch et Jem. Mcgeoch, POWER SPECTRA AND COOPERATIVITY OF A CALCIUM-REGULATED CATION CHANNEL, Biophysical journal, 66(1), 1994, pp. 161-168
Citations number
15
Categorie Soggetti
Biophysics
Journal title
Biophysical journal → ACNP
ISSN journal
00063495
Volume
66
Issue
1
Year of publication
1994
Pages
161 - 168
Database
ISI
SICI code
0006-3495(1994)66:1<161:PSACOA>2.0.ZU;2-W
Abstract
In this article we show that a channel complex of cooperatively intera cting subunits can produce a power law spectrum, with the slope of the spectrum depending on the strength of the cooperative interaction. Th e effects of cooperativity are explored via a computational model of a calcium-regulated cation channel for which new data is presented. The results, which concern ''flickering'' conductances, are correlated wi th prior work on critical fluctuations in the Ising model of ferromagn etism.