Recombinant Mouse BTN2A2/Butyrophilin 2A2 Protein, CF
Recombinant Mouse BTN2A2/Butyrophilin 2A2 Protein, CF Summary
Gln30-Trp248, with a C-terminal 6-His tag
|Formulation||Lyophilized from a 0.2 μm filtered solution in PBS and EDTA.|
|Reconstitution||Reconstitute at 200 μg/mL in PBS.|
|Shipping||The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.|
|Stability & Storage:||Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Recombinant Mouse BTN2A2/Butyrophilin 2A2 inhibits IL-2secretion by mouse T cells in the presence of anti-CD3 antibody. The ED50 forthis effect is 1-6 ug/mL.
Background: BTN2A2/Butyrophilin 2A2
Butyrophilin 2A2 (BTN2A2) is a widely expressed 65 kDa type I transmembrane glycoprotein that functions as a negative regulator of immune responses (1). Mature mouse Butyrophilin 2A2 consisits of a 215 amino acid (aa) extracellular domain with two immunoglobulin-like domains, a 21 aa transmembrane segment, and a 249 aa cytoplasmic domain. Within the Ig-like domains, mouse Butyrophilin 2A2 shares 71% and 90% aa sequence identity with human and rat Butyrophilin 2A2, respectively. Alternative splicing generates an additional isoform of mouse Butyrophilin 2A2 with a deletion and substitution in the cytoplasmic region. Within the immune system, Butyrophilin 2A2 is expressed on thymic epithelial cells, naïve B cells, splenic NK cells, dendritic cells, and peritoneal macrophages and is up-regulated with cell activation (2, 3). Butyrophilin 2A2 inhibits T cell proliferation and activation and enhances the development of FoxP3+ regulatory T cells (2, 3). Its up-regulation in the hippocampus is associated with schizophrenia (4).
- Arnett, H.A. and J.L. Viney (2014) Nat. Rev. Immunol. 14:559.
- Smith, I.A. et al. (2010) J. Immunol. 184:3514.
- Ammann, J.U. et al. (2013) J. Immunol. 190:5030.
- Sinkus, M.L. et al. (2013) Brain Behav. Immun. 32:51.
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