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Home >> Antibodies >> CD74 (B-Cell Marker)

CD74 (B-Cell Marker)

Mouse Monoclonal Antibody [Clone BU45]

Catalog #

Size

20 ug
100 ug
100 ug

Price (USD)

199.00
429.00
429.00

Formulation

Purified Ab with BSA and Azide at 200ug/ml
Purified Ab with BSA and Azide at 200ug/ml
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml

Catalog No

Size

20 ug
100 ug
100 ug

Formulation

Purified Ab with BSA and Azide at 200ug/ml
Purified Ab with BSA and Azide at 200ug/ml
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml

Price (USD)

199.00
429.00
429.00
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SDS-PAGE Analysis Purified CD74 Mouse Monoclonal Antibody (BU45). Confirmation of Purity and Integrity of Antibody.

Product Details

Synonyms

CLIP, DHLAG, Gamma chain of class II antigens, HLA class II histocompatibility antigen gamma chain, HLA-DR antigens-associated invariant chain, HLADR-gamma (HLADG), Ia antigen-associated invariant chain, la-gamma, Major histocompatibility complex class II invariant chain, MHC HLA-DR gamma chain

Positive Control

Daudi cells. Tonsil or lymph node.

Known Applications & Suggested Dilutions

Flow Cyt, IF, Western Blot         More Details

Flow Cytometry (1-2ug/million cells)
Immunofluorescence (1-2ug/ml)
Western Blot (1-2ug/ml)
Optimal dilution for a specific application should be determined.

Immunogen

B lymphoblastoid cell line HFB1

Cellular Localization

Cell surface and paranuclear globular

Species Reactivity

Human.

Host / Ig Isotype

Mouse / IgG1, kappa

Mol. Weight of Antigen

33-41kDa

Specificity & Comments

Recognizes proteins of 33, 35 and 41kDa, 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 (+).

Related Products



200ug/ml of Ab Purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.

Key References

  1. Wraight, C.J. et al. (1990) Human major histocompatibility complex class II invariant chain is expressed on the cell surface. J Biol Chem.265:5787.

Bioinformatics

  •  Entrez Gene ID: 972
  •  Gene Symbol: CD74
  •  SwissProt: P044233
  •  Chromosome Location: 5q33.1
  •  Unigene: 436568
NBT00189