4-1BB/TNFRSF9, Human (CHO, Fc)

4-1BB (CD137; TNFRSF9), a receptor of TNFSF9/4-1BBL, belongs to the tumor necrosis factor (TNF) receptor superfamily[1]. 4-1BB is helpful for T cell activation and development, and also induces peripheral mononuclear cell proliferation and migration to the tumor microenvironment[2]. 4-1BB is also involved in enhancing Nrf2 and NF-κB pathway mediated apoptosis of endothelial cells[3]. Human 4-1BB protein is a surface glycoprotein with a transmembrane domain (187-213 a.a.). 4-1BB/TNFRSF9 Protein, Human (CHO, Fc) is the extracellular part (L24-Q186) of 4-1BB protein, produced by HEK293 cells with C-terminal hFc-tag.

LQDPCSNCPA GTFCDNNRNQ ICSPCPPNSF SSAGGQRTCD ICRQCKGVFR TRKECSSTSN AECDCTPGFH CLGAGCSMCE QDCKQGQELT KKGCKDCCFG TFNDQKRGIC RPWTNCSLDG KSVLVNGTKE RDVVCGPSPA DLSPGASSVT PPAPAREPGH SPQ

[1]Cheuk AT, et al. Role of 4-1BB:4-1BB ligand in cancer immunotherapy. Cancer Gene Ther. 2004 Mar;11(3):215-26.|[2]Ye L, et al. CD137, an attractive candidate for the immunotherapy of lung cancer. Cancer Sci. 2020 May;111(5):1461-1467.|[3]Jiang P, et al. CD137 promotes bone metastasis of breast cancer by enhancing the migration and osteoclast differentiation of monocytes/macrophages. Theranostics. 2019 May 9;9(10):2950-2966.|[4]Geng T, et al. CD137 Signaling Promotes Endothelial Apoptosis by Inhibiting Nrf2 Pathway, and Upregulating NF-κB Pathway. Mediators Inflamm. 2020 Jun 6;2020:4321912.|[5]Langstein J, et al. Comparative analysis of CD137 and LPS effects on monocyte activation, survival, and proliferation. Biochem Biophys Res Commun. 2000 Jun 24;273(1):117-22.|[6]Langstein J, et al. Identification of CD137 as a potent monocyte survival factor. J Leukoc Biol. 1999 Jun;65(6):829-33.|[7]Jiang D, et al. CD137 induces proliferation of murine hematopoietic progenitor cells and differentiation to macrophages. J Immunol. 2008 Sep 15;181(6):3923-32.