Application notesPeptide ELISA: Use at an assay dependent dilution. Antibody detection limit dilution 1:32,000.
WB: Preliminary experiments gave an approximate 37 kDa band in mouse and rat spleen lysates after 0.5 7micro;g/ml antibody staining. Please note that currently we cannot find an explanation in the literature for the band we observe given the calculated size of 115 kDa according to NP_612183.1. The 37kDa band was successfully blocked by incubation with the immunizing peptide.
Not yet tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
FunctionMacrophage receptor that binds to the apolipoprotein B48 (APOB) of dietary triglyceride (TG)-rich lipoproteins (TRL) or to a like domain of APOB in hypertriglyceridemic very low density lipoprotein (HTG-VLDL). Binds and internalizes TRL when out of the context of the macrophage. May provide essential lipids to reticuloendothelial cells. Could also be involved in foam cell formation with elevated TRL and remnant lipoprotein (RLP). Mediates the rapid high-affinity uptake of chylomicrons (CM), HTG-VLDL, and trypsinized (tryp) VLDL devoid of APOE in vitro in macrophages.
Tissue specificityExpressed in peripheral blood leukocytes > bone marrow = spleen > lymph node, and only faintly visible in appendix and thymus. Expressed in the brain, heart, kidney, liver, lung, pancreas, and placenta. Expressed primarily by reticuloendothelial cells: monocytes, macrophages, and endothelial cells. Expressed in atherosclerotic lesion foam cells.
Post-translational modificationsThere are 2 forms in macrophages, the membrane-binding proteins 200 kDa (MBP 200) and 235 kDa (MBP 235), that can be reduced into a single active ligand-binding species with intermediate mobility (MBP 200R).
Cellular localizationCell membrane. Binds monocyte-macrophage membrane. Thought to be anchored in the membrane through an interaction with an integral membrane protein.