Human CD66a/CEACAM1 Antibody (MK-6018) is a research-grade biosimilar monoclonal antibody targeting CD66. It is a human IgG4 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.
Cell adhesion molecule CEACAM1 (CD66a) is a ~57 kDa protein. Cell adhesion protein that mediates homophilic cell adhesion in a calcium-independent manner. Plays a role as coinhibitory receptor in immune response, insulin action and also functions as an activator during angiogenesis. Its coinhibitory receptor function is phosphorylation- and PTPN6 -dependent, which in turn, suppress signal transduction of associated receptors by dephosphorylation of their downstream effectors. Plays a role in immune response, of T cells, natural killer (NK) and neutrophils. Upon TCR/CD3 complex stimulation, inhibits TCR-mediated cytotoxicity by blocking granule exocytosis by mediating homophilic binding to adjacent cells, allowing interaction with and phosphorylation by LCK and interaction with the TCR/CD3 complex which recruits PTPN6 resulting in dephosphorylation of CD247 and ZAP70.