CD74 Antibody (LN-2 + CLIP/813)

Images

 
Immunocytochemistry/ Immunofluorescence: CD74 Antibody (LN-2 + CLIP/813) [NBP2-44992] - Immunofluorescence Analysis of Raji cells labeling CD74 with CD74 Antibody (LN-2 + CLIP/813) followed by Goat anti-Mouse IgG-CF488 ...read more
Immunohistochemistry-Paraffin: CD74 Antibody (LN-2 + CLIP/813) [NBP2-44992] - Human Tonsil stained with CD74 Monoclonal Antibody (LN-2 + CLIP/813).
Flow Cytometry: CD74 Antibody (LN-2 + CLIP/813) [NBP2-44992] - Flow Cytometric Analysis of Raji cells. CD74 Antibody (LN-2 + CLIP/813) followed by goat anti-Mouse IgG-CF488. Orange: cells are not permeabilized. Blue: ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow, ICC/IF, IHC, IHC-P
Clone
LN-2 + CLIP/813
Clonality
Monoclonal
Host
Mouse
Conjugate
Unconjugated
Concentration
0.2 mg/ml

Order Details

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Catalog# & Formulation Size Price

CD74 Antibody (LN-2 + CLIP/813) Summary

Immunogen
SU-DHL-4 lymphoma cells (LN-2); Recombinant full-length human CD74 protein (CLIP/813)
Localization
Cell surface and paranuclear globular
Marker
B-Cell Marker
Specificity
It recognizes a protein of ~35kDa, identified as CD74. It 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. 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 (+).
Isotype
IgG1 Kappa/IgG1 Kappa
Clonality
Monoclonal
Host
Mouse
Gene
CD74
Purity
Protein A or G purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Flow Cytometry 1-2 ug/million cells
  • Immunocytochemistry/Immunofluorescence 1-2 ug/ml
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin 1-2 ug/ml
Application Notes
Immunohistochemistry (Formalin-fixed): 1-2ug/ml for 30 minutes at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95C followed by cooling at RT for 20 minutes.
Optimal dilution for a specific application should be determined.

Packaging, Storage & Formulations

Storage
Store at 4C.
Buffer
10 mM PBS with 0.05% BSA
Preservative
0.05% Sodium Azide
Concentration
0.2 mg/ml
Purity
Protein A or G purified

Notes

200ug/ml of antibody purified from Bioreactor Concentrate by Protein A or G. Prepared in 10 mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0 mg/ml. (NBP3-11423)

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C. Antibody is stable for 24 months. Non-hazardous.

Alternate Names for CD74 Antibody (LN-2 + CLIP/813)

  • CD74 antigen (invariant polypeptide of major histocompatibility complex, classII antigen-associated)
  • CD74 antigen
  • CD74 molecule, major histocompatibility complex, class II invariant chain
  • CD74
  • CLIP
  • DHLAG
  • DHLAGgamma chain of class II antigens
  • HLA class II histocompatibility antigen gamma chain
  • HLADG
  • HLA-DR antigens-associated invariant chain
  • HLA-DR-gamma
  • Ia antigen-associated invariant chain
  • Ia-associated invariant chain
  • Ia-gamma
  • Ii
  • INVG34
  • MHC HLA-DR gamma chain
  • p33

Background

CD74, also known as the MHC class II associated invariant chain (Ii), 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. CD74 is produced in molar excess over MHC class II and some of this is expressed by an unknown pathway on the cell surface independent of, or in association with, MHC class II molecules. The half life of CD74 on the cell surface is only 3 to 4 min after which it is internalized. It has been proposed that cell surface CD74 binds MHC class II molecules which have lost their antigenic peptide leading to internalization and reloading with antigenic peptide. The transport route of class II alpha/beta/Ii complexes is regulated selectively by two forms of CD74 (p33 and p35) which are generated by the use of alternative translation initiation sites. 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 together, with many epithelial cells. CD74 may exist in different isoforms ranging in size from 33 to 41 kDa, depending on genetic splicing.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

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Video Protocols

ICC/IF Video Protocol

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Secondary Antibodies

 

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Blogs on CD74.

CD74 - a central player in antigen presentation by MHC class II
Cluster of differentiation 74 (CD74) is an important integral membrane protein that serves as a chaperone for MHC class II molecules. CD74, also known as the invariant chain or Ii, is needed for the proper folding and trafficking of MHC class II in...  Read full blog post.

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Bioinformatics

Gene Symbol CD74