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The Ca2+-mobilizing second messenger, NAADP (nicotinic acid adenine dinucleotide phosphate), has been with us for nearly 20 years and yet we still cannot fully agree on the identity of its target Ca2+-release channel. In spite of some recent robust challenges to the idea that two-pore channels (TPCs) represent the elusive "NAADP receptor", evidence continues to accumulate that TPCs are important for NAADP-mediated responses. This article will briefly outline the background and review more recent work pertaining to the TPC story.

Original publication

DOI

10.1042/BST20140300

Type

Journal article

Journal

Biochem Soc Trans

Publication Date

06/2015

Volume

43

Pages

384 - 389

Keywords

Animals, Calcium, Calcium Channels, Calcium Signaling, Endosomes, Lipid Metabolism, Lysosomes, Membrane Potentials, NADP