Human IRF4 Antibody

Catalog #: AF5525
1 Citation Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
AF5525
AF5525-SP

Detection of Human IRF4 by Western Blot.

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All IRF4 Antibodies

Product Details

Citations (1)

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human IRF4 Antibody Summary

Species Reactivity

Human

Specificity

Detects human IRF4 in direct ELISAs. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) IRF3, rhIRF5, and rhIRF6 is observed.

Source

Polyclonal Sheep IgG

Purification

Antigen Affinity-purified

Immunogen

E. coli-derived recombinant human IRF4
Glu130-Glu451
Accession # Q15306

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Purity

Immunogen affinity purified

Applications

Recommended Concentration

Sample

Western Blot

0.5 µg/mL

See below

Immunohistochemistry

5-15 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human IRF4 by Western Blot. Western blot shows lysates of Ramos human Burkitt's lymphoma cell line, Raji human Burkitt's lymphoma cell line, and RPMI 8226 human multiple myeloma cell line. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human IRF4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5525) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for IRF4 at approximately 53 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunohistochemistry

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IRF4 in Human Tonsil. IRF4 was detected in immersion fixed paraffin-embedded sections of human tonsil using Sheep Anti-Human IRF4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5525) at 3 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm of lymphocytes. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Sterile PBS to a final concentration of 0.2 mg/mL.

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IRF4

Interferon regulatory factor 4 (IRF4), also known as MUM1 and LSIRF, is a 51 kDa lymphocyte-restricted transcription factor. It is required for immunoglobulin class switching and terminal differentiation of B cells. IRF4 is overexpressed in multiple myeloma and cooperates with Myc in an autoregulatory loop. In T cells, IRF4 is required for the production of IL-4. IRF4 contains an N-terminal DNA binding domain that is homologous to that in other IRF proteins. Within the C-terminal domain (aa 130‑451), human IRF4 shares 90% aa sequence identity with mouse and rat IRF4. Alternate splicing may generate isoforms with N-terminal, C-terminal, or internal deletions.

Long Name

Interferon Regulatory Factor 4

Entrez Gene IDs

3662 (Human); 16364 (Mouse); 291100 (Rat)

Alternate Names

interferon regulatory factor 4; IRF4; IRF-4; LSIRF; LSIRFMUM1; Lymphocyte-specific interferon regulatory factor; Multiple myeloma oncogene 1; MUM1; NF-EM5

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

Citation for Human IRF4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

Activin-A co-opts IRF4 and AhR signaling to induce human regulatory T cells that restrain asthmatic responses
Authors: S Tousa, M Semitekolo, I Morianos, A Banos, AI Trochoutso, TM Brodie, N Poulos, K Samitas, M Kapasa, D Konstantop, G Paraskevop, M Gaga, CM Hawrylowic, F Sallusto, G Xanthou
Proc. Natl. Acad. Sci. U.S.A, 2017-03-20;0(0):.
Species: Human
Sample Types: Whole Cells
Applications: ICC