α_1E Subunits Form the Pore of Three Cerebellar R-Type Calcium Channels with Different Pharmacological and Permeation Properties

This work was supported by Telethon-Italy Grant 720 to D.P. A.T. was supported by the Lilly Postdoctoral Research Program. We thank Drs. G. Miljanich and L. Nadasdi of Elan Pharmaceuticals Inc. for providing SNX483, and Carlo Berizzi and Francesca Bolcato for help in performing some of the experiments.

Correspondence should be addressed to Daniela Pietrobon, Department of Biomedical Sciences, University of Padova, V.le G. Colombo 3, 35121 Padova, Italy. E-mail: dani{at}civ.bio.unipd.it.