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Ca(2+)-dependent Inactivation of Ca(V)1.2 Channels Prevents Gd(3+) Block: Does Ca(2+) Block the Pore of Inactivated Channels?

Lanthanide gadolinium (Gd(3+)) blocks Ca(V)1.2 channels at the selectivity filter. Here we investigated whether Gd(3+) block interferes with Ca(2+)-dependent inactivation, which requires Ca(2+) entry through the same site. Using brief pulses to 200 mV that relieve Gd(3+) block but not inactivation,...

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Detalles Bibliográficos
Autores principales: Babich, Olga, Matveev, Victor, Harris, Andrew L., Shirokov, Roman
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2151623/
https://www.ncbi.nlm.nih.gov/pubmed/17535960
http://dx.doi.org/10.1085/jgp.200709734