Summary
Specificity
Human, Mouse, Rat
Application
WB, IF, IP, IHC-P, ELISA
Basic Information
Immunogen
Amino acids 17-296 mapping at the C-terminus of CD74 of human origin.
Specificity
Human, Mouse, Rat
Clonality
Monoclonal Antibody
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.
Application | Note |
WB | 1:100-1:1,000 |
IP | 1-2 µg per 100-500 µg of total
protein (1 ml of cell lysate) |
IF(ICC) | 1:50-1:500 |
IHC-P | 1:50-1:500 |
ELISA | 1:100-1:1,000 |
Formulations & Storage [For reference only, actual COA shall prevail!]
Preservative
< 0.1% sodium azide
Storage
Store at +4°C short term (1-2 weeks). Aliquot and store at-20°C long term. Avoid repeated freeze/thaw cycles.
Target
Introduction
CD74 (CD74 Molecule) is a Protein Coding gene. Diseases associated with CD74 include Undifferentiated Pleomorphic Sarcoma and Mantle Cell Lymphoma. Among its related pathways are Response to elevated platelet cytosolic Ca2+ and Innate Immune System. Gene Ontology (GO) annotations related to this gene include identical protein binding and amyloid-beta binding.
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.
Class-II-associated invariant chain peptide: 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.
Isoform p41: 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).
Biological Process
Activation of MAPK activity Source: Ensembl
Antigen processing and presentation Source: GO_Central
Antigen processing and presentation of endogenous antigen Source: UniProtKB
Antigen processing and presentation of exogenous peptide antigen via MHC class II Source: Reactome
Cell population proliferation Source: Ensembl
Chaperone cofactor-dependent protein refolding Source: Ensembl
Immunoglobulin mediated immune response Source: UniProtKB
Intracellular protein transport Source: UniProtKB
Leukocyte migration Source: Reactome
Macrophage migration inhibitory factor signaling pathway Source: Ensembl
Negative regulation of apoptotic process Source: UniProtKB
Negative regulation of cell migration Source: ARUK-UCL
Negative regulation of DNA damage response, signal transduction by p53 class mediator Source: BHF-UCL
Negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator Source: BHF-UCL
Negative regulation of mature B cell apoptotic process Source: Ensembl
Negative regulation of peptide secretion Source: BHF-UCL
Negative regulation of T cell differentiation Source: Ensembl
Negative regulation of viral entry into host cell Source: UniProtKB
Negative thymic T cell selection Source: Ensembl
Positive regulation of B cell proliferation Source: BHF-UCL
Positive regulation of chemokine (C-X-C motif) ligand 2 production Source: BHF-UCL
Positive regulation of chemokine production Source: ARUK-UCL
Positive regulation of cytokine-mediated signaling pathway Source: BHF-UCL
Positive regulation of dendritic cell antigen processing and presentation Source: Ensembl
Positive regulation of ERK1 and ERK2 cascade Source: BHF-UCL
Positive regulation of fibroblast proliferation Source: BHF-UCL
Positive regulation of gene expression Source: ARUK-UCL
Positive regulation of I-kappaB kinase/NF-kappaB signaling Source: CAFA
Positive regulation of interleukin-6 production Source: ARUK-UCL
Positive regulation of interleukin-8 production Source: ARUK-UCL
Positive regulation of kinase activity Source: CAFA
Positive regulation of macrophage cytokine production Source: BHF-UCL
Positive regulation of macrophage migration inhibitory factor signaling pathway Source: ARUK-UCL
Positive regulation of MAPK cascade Source: CAFA
Positive regulation of monocyte differentiation Source: CAFA
Positive regulation of neutrophil chemotaxis Source: BHF-UCL
Positive regulation of peptidyl-tyrosine phosphorylation Source: BHF-UCL
Positive regulation of prostaglandin biosynthetic process Source: ARUK-UCL
Positive regulation of protein phosphorylation Source: CAFA
Positive regulation of T cell differentiation Source: Ensembl
Positive regulation of transcription, DNA-templated Source: CAFA
Positive regulation of type 2 immune response Source: GO_Central
Positive regulation of viral entry into host cell Source: CAFA
Positive thymic T cell selection Source: Ensembl
Prostaglandin biosynthetic process Source: UniProtKB
Protein-containing complex assembly Source: UniProtKB
Protein stabilization Source: UniProtKB
Protein trimerization Source: InterPro
Regulation of macrophage activation Source: UniProtKB
Response to interferon-gamma Source: UniProtKB
T cell activation involved in immune response Source: GO_Central
T cell selection Source: UniProtKB
Cellular Location
Endosome; Trans-Golgi network; Endoplasmic reticulum membrane; Lysosome; Cell membrane. Transits through a number of intracellular compartments in the endocytic pathway. It can either undergo proteolysis or reach the cell membrane.
Isoform p41: Late endosome; Lysosome
Involvement in disease
A chromosomal aberration involving CD74 is found in a non-small cell lung tumor. Results in the formation of a CD74-ROS1 chimeric protein.
Topology
Cytoplasmic: 1-46
Helical: 47-72
Extracellular: 73-296
PTM
N- and O-glycosylated. O-glycosylated with core 1 or possibly core 8 glycans.