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The human lymphocyte antigen CD38 has been shown to share sequence homology with ADP-ribosyl cyclase, the enzyme that catalyzes the conversion of NAD+ to cyclic ADP-ribose (cADPR), a potent Ca(2+)-mobilizing agent. In this study COS1 cells from African Green Monkey kidney were transiently transfected with CD38 cDNA, inducing expression of authentic CD38 on the cell surface. We demonstrate that CD38 expressed in this manner can convert NAD+ to cADPR in the extracellular medium as assessed by Ca2+ release from sea-urchin egg microsomes.

Type

Journal article

Journal

FEBS Lett

Publication Date

06/12/1993

Volume

335

Pages

231 - 233

Keywords

ADP-ribosyl Cyclase, Adenosine Diphosphate Ribose, Animals, Antigens, CD, Antigens, CD38, Antigens, Differentiation, Calcium, Catalysis, Cell Line, Cercopithecus aethiops, Cyclic ADP-Ribose, Humans, Membrane Glycoproteins, NAD, Sea Urchins