AB316403

Recombinant Human IRF5 Protein Standard

Name: Recombinant Human IRF5 Protein Standard (ab316403) | Abcam
Brand: Abcam Limited
SKU: AB316403
Price: 200 USD
Availability: InStock

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Recombinant Human IRF5 Protein Standard is a Human Fragment protein, expressed in Escherichia coli, with >80%, suitable for SDS-PAGE, sELISA.

View Alternative Names

Interferon regulatory factor 5, IRF-5, IRF5

2 Images

Sandwich ELISA - Recombinant Human IRF5 Protein Standard (AB316403)

sELISA

Supplier Data

Sandwich ELISA - Recombinant Human IRF5 Protein Standard (AB316403)

Sandwich ELISA with the capture antibody dilution at 2 ug/mL and detector antibody dilution at 0.5 ug/mL.

SDS-PAGE - Recombinant Human IRF5 Protein Standard (AB316403)

SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human IRF5 Protein Standard (AB316403)

SDS-PAGE analysis of ab316403 under reducing conditions for 2ug protein.

Key facts

Purity

>80% SDS-PAGE

Expression system

Escherichia coli

Applications

SDS-PAGE, sELISA

applications

Biologically active

Accession

Q13568

Animal free

Yes

Carrier free

Species

Human

Storage buffer

pH: 7.3 - 7.5 Constituents: 2.922% Sodium chloride, 0.64107% disodium;hydrogen phosphate;dodecahydrate, 0.02858% Potassium phosphate monobasic

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

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Product details

While the standard is the same as the one provided in the corresponding SimpleStep ELISA Kit, it cannot be treated as the consumable provided with our SimpleStep ELISA Kit due to differences in its concentration calibration.

Abcam guarantee that this protein standard is suitable for use in a sandwich ELISA. Individual results may vary due to differences in technique, laboratory equipment, buffers, and other experimental factors. The detection range provided for this protein standard is based on initial sandwich ELISA validation data.

The protein concentration is the concentration after validation on our sandwich ELISA platform. This Standard protein is guaranteed to work with our Capture and Detector antibodies in sELISA. Please contact our Scientific Support team to know which antibody pair is suitable for this protein.

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Sequence info

[{"sequence":null,"proteinLength":"Fragment","predictedMolecularWeight":"28.6 kDa","actualMolecularWeight":null,"aminoAcidEnd":0,"aminoAcidStart":0,"nature":"Recombinant","expressionSystem":null,"accessionNumber":"Q13568","tags":[]}]

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Properties and storage information

Shipped at conditions

Dry Ice

Appropriate short-term storage conditions

-80°C

Appropriate long-term storage conditions

-80°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

False

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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

IRF5 or Interferon Regulatory Factor 5 is a member of the IRF family of transcription factors. This protein weighs approximately 56 kDa and is expressed in cells of the immune system including B cells dendritic cells and macrophages. IRF5 plays an important role in regulating the transcription of interferon-stimulated genes following a viral infection. It acts by binding to specific DNA sequences initiating transcription processes that are important for the antiviral response.

Biological function summary

IRF5 influences the immune response through the regulation of cytokine production. It activates genes involved in producing pro-inflammatory cytokines such as TNF-α and IL-6 which are important for clearing viral infections and activating immune cells. IRF5 does not usually form part of a protein complex but it interacts closely with TRAF6 and MyD88 for its activation. Its pivotal role in cytokine production highlights its importance in controlling inflammation.

Pathways

IRF5 is an important component of the Toll-like receptor (TLR) signaling pathway and plays a role in the MyD88-dependent pathway. In this context IRF5 gets activated by TLRs interacting with MyD88 and TAK1 to enhance the transcription of important genes for immune response. It is also closely connected to the IRF3 protein which shares similar activation pathways and can similarly initiate an antiviral state.

Defects or dysregulation in IRF5 function are linked to autoimmune diseases such as systemic lupus erythematosus (SLE) and rheumatoid arthritis. In SLE IRF5 influences autoantibody production contributing to disease development. It works alongside other regulatory proteins involved in autoimmunity including IFN-α and STAT4 which also play significant roles in modulating immune responses. Understanding IRF5's role in these conditions could present new opportunities for therapeutic interventions using IRF5 inhibitors.

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Specifications

Form

Liquid

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General info

Function

Transcription factor that plays a critical role in innate immunity by activating expression of type I interferon (IFN) IFNA and INFB and inflammatory cytokines downstream of endolysosomal toll-like receptors TLR7, TLR8 and TLR9 (PubMed : 11303025, PubMed : 15695821, PubMed : 22412986, PubMed : 25326418, PubMed : 32433612). Regulates the transcription of type I IFN genes (IFN-alpha and IFN-beta) and IFN-stimulated genes (ISG) by binding to an interferon-stimulated response element (ISRE) in their promoters (By similarity). Can efficiently activate both the IFN-beta (IFNB) and the IFN-alpha (IFNA) genes and mediate their induction downstream of the TLR-activated, MyD88-dependent pathway (By similarity). Key transcription factor regulating the IFN response during SARS-CoV-2 infection (PubMed : 33440148).

Sequence similarities

Belongs to the IRF family.

Post-translational modifications

Phosphorylation of serine and threonine residues by IKBKB in a C-terminal autoinhibitory region, stimulates dimerization, transport into the nucleus, assembly with the coactivator CBP/EP300 and initiation of transcription.. 'Lys-63'-linked polyubiquitination by TRAF6 is required for activation.

Subcellular localisation

Nucleus

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Product protocols

Visit the General protocols
Visit the Troubleshooting

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Target data

See full target information IRF5

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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.

For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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Recombinant Human IRF5 Protein Standard

Sandwich ELISA - Recombinant Human IRF5 Protein Standard (AB316403)

SDS-PAGE - Recombinant Human IRF5 Protein Standard (AB316403)

Key facts

Purity

Expression system

Tags

Applications

Biologically active

Accession

Animal free

Carrier free

Species

Storage buffer

Reactivity data

Product details

Sequence info

Properties and storage information

Shipped at conditions

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Specifications

Form

General info

Function

Sequence similarities

Post-translational modifications

Subcellular localisation

Product protocols

Target data

Complementary Products

Primary Antibodies

Assay Kits

Secondary Antibodies

Proteins & Peptides

Product promise