BD, 555709, Biotin Mouse Anti-Human CD23 M-L233

The M-L233 antibody specifically binds to human CD23, the low affinity receptor for human IgE (FcεRII). CD23 is a type II membrane glycoprotein that is expressed by B cells, monocytes, macrophages, eosinophils, platelets and dendritic cells. CD23 mediates IgE-dependent cytotoxicity and phagocytosis by macrophages and eosinophils. Soluble CD23 (sCD23) can be released by CD23-positive cells as a result of proteolytic cleavage of membrane CD23. Larger fragments of sCD23 (e.g., 25-37 kDa) retain their IgE-binding capacity whereas smaller fragments (ie, ≤ 12 kDa) do not. Soluble CD23 may have immunoregulatory effects on the growth and differentiation of B cells and other cell types.
ELISA Detection: This biotinylated M-L233 antibody is useful as a detection antibody in ELISA for measuring soluble human CD23 protein levels in combination with the purified mouse anti-human sCD23, clone M-L234 as the capture antibody. This biotinylated detection antibody should be pretitrated in the range of 0.5 to 5 µg/ml to determine its optimal concentration for ELISA. IF/Flow: This antibody can be used for immunofluorescent staining and flow cytometric analysis in conjunction with streptavidin (or avidin)-fluorochrome second step reagent.
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with biotin under optimum conditions, and unreacted biotin was removed. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
2. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.