The mouse monoclonal antibody mAb#33 (also known as mAb 33 or 33) recognizes extracellular portion of CD158d / KIR2DL4, a 45 kDa NK cell marker. Cell surface expression and function of CD158d / KIR2DL4 depends on genotype of particular individuals.
Purification
Purified by protein-A affinity chromatography.
Endotoxin Level
Endotoxin level is less than 0.01 EU/µg of the protein, as determined by the LAL test.
KIR2DL4/CD158d (KIR2DL4)
(Killer Cell Immunoglobulin-Like Receptor, Two Domains, Long Cytoplasmic Tail, 4 (KIR2DL4))
Alternative Name
CD158d
Background
Killer cell immunoglobulin like receptor, two Ig d,CD158d / KIR2DL4 is a KIR family member that shares structural features with both activating and inhibitory receptors and may mediate different functions under different circumstances. It contains cytoplasmic ITIM, suggesting inhibitory function, but also transmembrane domain similar to those of activating KIRs. It has been reported that CD158d serves as an inhibitory receptor for peripheral and uterine NK cells, but its ligation with soluble mAbs (unlike immobilized mAbs) results in activation of IFN-γ, secretion. CD158d also binds both membrane form and soluble form of its ligand HLA-G.,KIR2DL4, KIR103AS, 103AS, 15.212