CD74 Antibody (YA1282)

Cat. No.: HY-P81537: Data Sheet COA
SDS
User Guide for Antibodies
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CD74 Antibody (YA1282) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to CD74.

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

Size	Stock	Quantity
10 μL	In-stock	Estimated Time of Arrival: December 31
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

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CD74 Antibody (YA1282) Featured Recommendations:

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
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Background
Documentation

Description

CD74 Antibody (YA1282) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to CD74.

Host

Rabbit

Clonality

Recombinant, Monoclonal

Molecular Weight

Predicted band size: 34 kDa;

Observed band size: 34 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human

SwissProt ID

P04233

Gene ID

972 [NCBI]

Immunogen

A synthesized peptide derived from human CD74

Application &
Dilution Ratio

Application	Dilution Ratio
IHC-P IHC-P: Immunohistochemistry-Paraffin	1:100-1:200

Sensitivity	Endogenous	Purity	Affinity Purified
Conjugation	Non-conjugated	Modification	Unmodified
Isotype	IgG

Appearance

Liquid

Formulation

Supplied in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide, pH 7.3.

Storage & Stability

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

Shipping

Shipping with blue ice.

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ALL IHC-P mIHC

Immunohistochemical analysis of paraffin-embedded human bladder cancer tissue using CD74 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P81537, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
Immunohistochemical analysis of paraffin-embedded human Liver cancer tissue using CD74 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P81537, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
Immunohistochemical analysis of paraffin-embedded human Breast cancer tissue using CD74 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P81537, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
Immunohistochemical analysis of paraffin-embedded human ovarian carcinoma tissue using CD74 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P81537, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
Immunohistochemical analysis of paraffin-embedded human Kidney cancer‌ tissue using CD74 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P81537, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
Immunohistochemical analysis of paraffin-embedded human Cervical cancer‌ tissue using CD74 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P81537, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human Liver Cancer tissue using CD74 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P81537, 1:200 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with Vari Fluor 532 TSA (200×)（HY-D1832）. The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.
Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human Liver Cancer tissue using CD74 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P81537, 1:200 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with Vari Fluor 532 TSA (200×)（HY-D1832）. The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.
Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human Liver Cancer tissue using CD74 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P81537, 1:200 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with Vari Fluor 532 TSA (200×)（HY-D1832）. The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.
Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human Bladder cancer tissue using CD74 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P81537, 1:200 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with Vari Fluor 532 TSA (200×)（HY-D1832）. The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.
Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human Bladder cancer tissue using CD74 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P81537, 1:200 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with Vari Fluor 532 TSA (200×)（HY-D1832）. The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.
Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human Bladder cancer tissue using CD74 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P81537, 1:200 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with Vari Fluor 532 TSA (200×)（HY-D1832）. The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.

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

RRID

AB_3103128

Database

Entrez Gene: 972 Human

SwissProt: P04233 Human

OMIM: 142790 Human

Research Field

Immunology

Synonyms

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

Documentation

Select Batch:

Data Sheet (234 KB) SDS (252 KB)

COA (205 KB)

User Guide for Antibodies (1077 KB)

CD74 Antibody (YA1282) Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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CD74 Antibody (YA1282)

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