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Caged derivatives of Ca²⁺-mobilizing messengers, such as nicotinic acid adenine dinucleotide phosphate (NAADP), are particularly useful for establishing the effects of these messengers on Ca²⁺ signaling. Caged NAADP is no longer commercially available but can be synthesized in house, as described here. In brief, a stable precursor of the caging reagent is made and converted to an unstable reactive reagent immediately before addition to the compound to be caged.

Original publication




Journal article


Cold Spring Harb Protoc

Publication Date





Animals, Calcium, Calcium Signaling, NADP, Photochemistry, Photolysis