CD74 Antibody (YA4699)

Cat. No.: HY-P85007: Data Sheet User Guide for Antibodies
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CD74 Antibody (YA4699) is a Mouse-derived and non-conjugated monoclonal antibody, targeting to CD74.

For research use only. We do not sell to patients.

Size		Stock
50 μL		Get quote
100 μL		Get quote

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WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Background
Documentation

Description

CD74 Antibody (YA4699) is a Mouse-derived and non-conjugated monoclonal antibody, targeting to CD74.

Host

Mouse

Clonality

Monoclonal

Species Reactivity

Human

SwissProt ID

P04233

Gene ID

972 [NCBI]

Immunogen

Purified recombinant Human CD74

Application &
Dilution Ratio

Application	Dilution Ratio
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-100000
FC FC: Flow Cytometry	1-2μg/Test

Purity	affinity purified.	Conjugation	Non-conjugated
Modification	Unmodified

Appearance

Liquid

Formulation

Supplied in Phosphate-buffered solution.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Background

Function：Plays a critical role in MHC class II antigen processing by stabilizing peptide-free class II alpha/beta heterodimers in a complex soon after their synthesis and directing transport of the complex from the endoplasmic reticulum to the endosomal/lysosomal system where the antigen processing and binding of antigenic peptides to MHC class II takes place. Serves as cell surface receptor for the cytokine MIF; Binds to the peptide-binding site of MHC class II alpha/beta heterodimers forming an alpha-beta-CLIP complex, thereby preventing the loading of antigenic peptides to the MHC class II complex until its release by HLA-DM in the endosome; Stabilizes the conformation of mature CTSL by binding to its active site and serving as a chaperone to help maintain a pool of mature enzyme in endocytic compartments and extracellular space of antigen-presenting cells (APCs). Has antiviral activity by stymieing the endosomal entry of Ebola virus and coronaviruses, including SARS-CoV-2 (PubMed:32855215). Disrupts cathepsin-mediated Ebola virus glycoprotein processing, which prevents viral fusion and entry. This antiviral activity is specific to p41 isoform (PubMed:32855215)

Subcellular Localization：Cell membrane; Single-pass type II membrane protein; Endoplasmic reticulum membrane; Golgi apparatus, trans-Golgi network; Endosome; Lysosome; Secreted; Late endosome; Lysosome

Expression：
Tissue_specificity:Protein levels are detectable in urine; it accounts for 10% of total CD74 expression in B cells and 70% of total CD74 expression in other B cells.

Isoforms & Post-Translational Modification：P04233 has 5 isomers: P04233-1: 33516 Da (predicted); P04233-2: 26399 Da (predicted); P04233-3: 18328 Da (predicted); P04233-4: 31492 Da (predicted); P04233-5: 24375 Da (predicted).
O-glycosylated with core 1 or possibly core 8 glycans (PubMed:22171320, PubMed:23234360). Contains chondroitin sulfate (PubMed:25326458)

Subunit：Homotrimer. In the endoplasmic reticulum (ER) it forms a heterononameric MHC II-Ii complex: 3 MHC class II molecules (heterodimers of an alpha and a beta subunit) bind to the CD74 homotrimer (also known as invariant chain or HLA class II histocompatibility antigen gamma chain). In the endosomal/lysosomal system, the CD74 component undergoes sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide) attached to the MHC class II molecule (alpha-beta-CLIP complex). This processed complex interacts with HLA_DM and HLA_DO heterodimers in order to release CLIP and facilitate the binding of antigenic peptides to the MHC class II molecules. Interacts with CD44; this complex is essential for the MIF-induced signaling cascade that results in B cell survival

Synonyms

HLA class II histocompatibility antigen gamma chain; HLA-DR antigens-associated invariant chain; Ia antigen-associated invariant chain; Ii; p33; CD antigen CD74; CD74 nanobody;

Documentation

User Guide for Antibodies (1077 KB)