背景介绍 CD137L (4-1BBL; TNLG5A), a part of the tumor necrosis factor (ligand) superfamily (TNFSF9), is a type II glycoprotein that expresses on various antigen-presenting cells. It interacts with CD137 (4-1BB) on T cells following TCR stimulation to promote T cell expansion and cytokine production. 产品介绍 Recombinant CHO-K1 cell constitutively expressing full-length human CD137L (NP_003802.1). Surface expression is confirmed by flow cytometry.