Invitrogen

CD74 Monoclonal Antibody (VIC-Y1), eBioscience™

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4 Published Figures
4 References
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Datasheet
Protocols
Questions & Answers
Datasheet
Protocols
Questions & Answers

Product Details

14-0747-82

Applications
Tested Dilution
Publications

Western Blot (WB)

0.5 µg/mL
View 2 publications 2 publications

Immunohistochemistry (Paraffin) (IHC (P))

5 µg/mL
-

Immunocytochemistry (ICC/IF)

1:100
-

Flow Cytometry (Flow)

-
View 1 publication 1 publication

Immunoprecipitation (IP)

-
View 1 publication 1 publication
Product Specifications

Species Reactivity

Human

Published species

Human

Host/Isotype

Mouse / IgG1

Class

Monoclonal

Type

Antibody

Clone

VIC-Y1

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.5 mg/mL

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2

Contains

0.09% sodium azide

Storage conditions

4°C

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_10669165

Product Specific Information

Description: This VIC-Y1 monoclonal antibody recognizes human CD74, also known as the MHC Class II-associated invariant chain. A 33-43 kDa nonpolymorphic type II membrane protein, CD74 is highly expressed on B cells and subsets of activated T cells, Langerhans cells, dendritic cells, and epithelial cells. Monocytes and macrophages also express CD74, but at lower levels. CD74 acts as a chaperone of MHC Class II (HLA-DR) proteins, promoting their translocation from the ER to endocytic compartments during antigen presentation. Activation of NFkB and ERK has been shown following CD74 interaction with CD44 and binding to the proinflammatory cytokine macrophage migration-inhibitory factor (MIF). CD74 also plays a role in the maturation of follicular B-cells and accumulation of marginal zone B-cells. CD74 has also been demonstrated to interact with CXCR2 and CXCR4.

The VIC-Y1 monoclonal antibody binds to a cytoplasmic region of human CD74 and thus cannot be used to detect cell surface expression of this molecule.

Applications Reported: This VIC-Y1 antibody has been reported for use in immunohistochemical staining of formalin-fixed paraffin embedded tissue sections.

Applications Tested: This VIC-Y1 antibody has been tested by immunohistochemistry on formalin-fixed paraffin embedded human tonsil tissue using low pH antigen retrieval. This antibody can be used at less than or equal to 5 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

Purity: Greater than 90%, as determined by SDS-PAGE.

Aggregation: Less than 10%, as determined by HPLC.

Filtration: 0.2 µm post-manufacturing filtered.

Target Information

HLA-DR, like other MHC class II molecules, is a transmembrane glycoprotein composed of a 36 kDa alpha chain (DRA) and 27 kDa beta chain (DRB). The alpha chain gene contains 5 exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, and exon 4 encodes the transmembrane domain and the cytoplasmic tail. DRA does not have polymorphisms in the peptide binding part and acts as the sole alpha chain for DRB1, DRB3, DRB4 and DRB5. Within the DR molecule the beta chain contains all the polymorphisms specifying the peptide binding specificities. Hundreds of DRB1 alleles have been described and typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. HLA-DR is expressed primarily on antigen presenting cells such as B lymphocytes, monocytes, macrophages, thymic epithelial cells and activated T lymphocytes. Three loci, DR, DQ and DP, encode the major expressed products of the human class II region. The human MHC class II molecules bind intracellularly processed peptides, present them to T-helper cells, and have a critical role in the initiation of the immune response.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

Bioinformatics

Protein Aliases: CD74; CD74 antigen; CD74 antigen (invariant polypeptide of major histocompatibility complex, class II antigen-associated); CD74 molecule, major histocompatibility complex, class II invariant chain; gamma chain of class II antigens; HLA class II histocompatibility antigen gamma chain; HLA-DR antigens-associated invariant chain; HLA-DR-gamma; Ia antigen-associated invariant chain; Ia-associated invariant chain; Ii; MHC HLA-DR gamma chain; p33

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Gene Aliases: CD74; DHLAG; HLADG; Ia-GAMMA; II

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UniProt ID: (Human) P04233

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Entrez Gene ID: (Human) 972

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Function(s)
beta-amyloid binding cytokine receptor activity protein binding cytokine binding MHC class II protein complex binding macrophage migration inhibitory factor binding MHC class II protein binding MHC class II protein binding, via antigen binding groove identical protein binding protein binding involved in protein folding nitric-oxide synthase binding
Process(es)
activation of MAPK activity prostaglandin biosynthetic process positive regulation of cytokine-mediated signaling pathway positive regulation of dendritic cell antigen processing and presentation negative regulation of peptide secretion positive regulation of type 2 immune response negative regulation of mature B cell apoptotic process protein complex assembly intracellular protein transport defense response signal transduction cell proliferation immunoglobulin mediated immune response antigen processing and presentation of endogenous antigen antigen processing and presentation of exogenous peptide antigen via MHC class II positive regulation of B cell proliferation macrophage migration inhibitory factor signaling pathway regulation of macrophage activation negative regulation of apoptotic process negative regulation of DNA damage response, signal transduction by p53 class mediator T cell selection positive thymic T cell selection negative thymic T cell selection negative regulation of T cell differentiation positive regulation of T cell differentiation positive regulation of fibroblast proliferation positive regulation of peptidyl-tyrosine phosphorylation leukocyte migration chaperone mediated protein folding requiring cofactor positive regulation of macrophage cytokine production positive regulation of ERK1 and ERK2 cascade positive regulation of neutrophil chemotaxis negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator positive regulation of chemokine (C-X-C motif) ligand 2 production
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