Human CD27 Antibody (M2177) is a research-grade biosimilar monoclonal antibody targeting CD27L. It is a human IgG1 antibody. Reactivity: Human. Supplied as a liquid in 0.01M PBS pH 7.4. Applications: ELISA, flow cytometry, functional assays and in vivo research. Endotoxin: < 10 EU/mg. Purity: >95% purity as determined by SDS-PAGE. For research use only.
CD27 antigen is a ~29 kDa protein. Costimulatory immune-checkpoint receptor expressed at the surface of T-cells, NK-cells and B-cells which binds to and is activated by its ligand CD70/CD27L expressed by B-cells. The CD70-CD27 signaling pathway mediates antigen-specific T-cell activation and expansion which in turn provides immune surveillance of B-cells. Mechanistically, CD70 ligation activates the TRAF2-PTPN6 axis that subsequently inhibits LCK phosphorylation to promote phenotypic and transcriptional adaptations of T-cell memory. In addition, activation by CD70 on early progenitor cells provides a negative feedback signal to leukocyte differentiation during immune activation and thus modulates hematopoiesis. Negatively regulates the function of Th2 lymphocytes in the adipose tissue.