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Imaging single-channel calcium microdomains by total internal reflection microscopy

Author
DEMURO,ANGELO

PARKER,IAN

Full text
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000400025
Abstract
The microdomains of Ca2+ in the cytosol around the mouth of open Ca2+ channels are the basic `building blocks' from which cellular Ca2+ signals are constructed. Moreover, the kinetics of local [Ca2+] closely reflect channel gating, so their measurement holds promise as an alternative to electrophysiological patch-clamp recording as a means to study single channel behavior. We have thus explored the development of optical techniques capable of imaging single-channel Ca2+ signals with good spatial and temporal resolution, and describe results obtained using total internal reflection fluorescence microscopy to monitor Ca2+ influx through single N-type channels expressed in Xenopus oocytes
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Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
Institutions
Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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