The CD39 protein is an important regulator in the nervous system, coordinating purinergic neurotransmission by hydrolyzing ATP and other nucleotides. Its enzymatic ability can hydrolyze platelet-activated ADP into AMP, thereby effectively preventing platelet aggregation. CD39 Protein, Human (HEK293, mFc) is the recombinant human-derived CD39 protein, expressed by HEK293, with C-mFc labeled tag.