Description: Recognizes proteins of 33, 35 and 41 kDa, which are identified as various isoforms of CD74. Its epitope is localized in the extracellular domain of CD74. CD74 is a type II transmembrane protein which binds to the peptide binding groove of newly synthesized MHC class II alpha/beta heterodimers and prevents their premature association with endogenous polypeptides. The CD74 molecule plays a critical role in the presentation of peptides, by the MHC class II antigens, to CD4 positive lymphocytes. CD74 is expressed on MHC class II positive cells including B cells, a subset of activated T cells, monocytes, and dendritic cells and by various types of carcinomas. CD74 is expressed primarily by antigen presenting cells, such as B-lymphocytes (from before the pre-B cell stage to before the plasma cell stage), macrophages, and monocytes, and many epithelial cells. Anti-CD74 stains predominantly germinal center lymphocytes and B-cell lymphomas, but rarely T-cell lymphomas. Anti-CD74 has been shown to be useful in differentiating atypical fibroxanthoma (-) from malignant fibrous histiocytoma ( ).Primary antibodies are available purified, or with a selection of fluorescent CF® Dyes and other labels. CF® Dyes offer exceptional brightness and photostability. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.
Product origin: Animal - Mus musculus (mouse), Bos taurus (bovine)
Conjugate: CF740
Concentration: 0.1 mg/mL
Storage buffer: PBS, 0.1% rBSA, 0.05% azide
Clone: BU45
Immunogen: B lymphoblastoid cell line HFB1
Antibody Reactivity: CD74
References: Note: References for this clone sold by other suppliers may be listed for expected applications.
Immunology (1995) 84: 177-182. (IP, Flow)
Entrez Gene ID: 972
Expected AB Applications: Flow, surface (published for clone)/IP (published for clone)
Z-Antibody Applications: Flow, surface (published)/IP (published)
Antibody Application Notes: Higher concentration may be required for direct detection using primary antibody conjugates than for indirect detection with secondary antibody/Immunofluorescence: 1-2 ug/mL/Flow Cytometry 0.5-1 ug/million cells/0.1 mL/Western blotting 0.5-1 ug/mL/Optimal dilution for a specific application should be determined by user
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