Cell Reports volume 5, issue 2, P367-377 2013 DOI: 10.1016/j.celrep.2013.09.006 View full text
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Hojjat Bazzazi, Manu Ben Johny, Paul J. Adams, Tuck Wah Soong, David T. Yue

Abstract: SUMMARY CaV1.3 ion channels are dominant Ca2+ portals into pacemaking neurons, residing at the epicenter of brain rhythmicity and neurodegeneration. Negative Ca2+ feedback regulation of CaV1.3 channels (CDI) is therefore critical for Ca2+ homeostasis. Intriguingly, nearly half the CaV1.3 transcripts in brain are RNA edited to reduce CDI and influence oscillatory activity. It is then mechanistically remarkable that this editing occurs precisely within an IQ domain, whose interaction with Ca2+-bound calmodulin …

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