RT Journal Article SR Electronic T1 Ca2+ Regulation of Inositol 1,4,5-trisphosphate Receptors: Can Ca2+ Function without Calmodulin? JF Molecular Pharmacology JO Mol Pharmacol FD American Society for Pharmacology and Experimental Therapeutics SP 199 OP 203 DO 10.1124/mol.104.002592 VO 66 IS 2 A1 Ana M. Rossi A1 Colin W. Taylor YR 2004 UL http://molpharm.aspetjournals.org/content/66/2/199.abstract AB All Ca2+ channels are regulated by Ca2+, a feature that allows them to respond to their own activity and to the activities of neighboring Ca2+ channels. Inhibition by Ca2+ protects cells from potentially hazardous increases in cytosolic [Ca2+], and stimulation can mediate facilitation and regenerative propagation of Ca2+ signals. Calmodulin is emerging as a key player in regulation of Ca2+ channels by Ca2+, but its role is more complex and more beautiful than might have been imagined.