CD38 protein performs diverse functions, synthesizing cyclic ADP-ribose (cADPR) for glucose-induced insulin secretion. It produces nicotinate-adenine dinucleotide phosphate (NAADP+), mobilizing calcium ions through 2'-phospho-cADPR and nicotinic acid, along with NADP+ and nicotinic acid. Additionally, CD38 acts as a cADPR hydrolase. CD38 Protein, Rabbit (HEK293, His) is the recombinant Rabbit-derived CD38 protein, expressed by HEK293 , with C-His labeled tag. The total length of CD38 Protein, Rabbit (HEK293, His) is 256 a.a., with molecular weight of 33-49 kDa.