HTRF Human and Mouse Total IRAK4 Detection Kit, 500 Assay Points

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HTRF Human and Mouse Total IRAK4 Detection Kit, 500 Assay Points

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This kit enables the detection of IRAK4 in lysates.

Product information

For research use only. Not for use in diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption & disposal requirements under European REACH regulations (EC 1907/2006).

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Product Variants

partnumber

Part number: 63ADK108PEG

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Unit Size: 500 Assay Points

List price: USD 2,044.00

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USD 2,044.00

USD 2,044.00 /each

partnumber

Part number: 63ADK108PEH

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Unit Size: 10,000 Assay Points

List price: USD 11,860.00

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USD 11,860.00 /each

Product information

Overview

IRAK4 (IL-1R-associated kinase 4) is a serine-threonine kinase essential in the signaling cascade associated with Toll-Like Receptors. IRAK4 is involved in the production of proinflammatory cytokines through NF-κB-mediated and mitogen-activated protein kinase (MAPK) activation, as well as IFNα/β secretion through interferon response factors 3 and 7 (IRF3/7).

This cell-based assay measures the modulation of IRAK4 protein levels.

Specifications

Other Specifications

Assay Points	500
Assay Target Type	Kit
Assay Technology	HTRF
Brand	HTRF
Quantity	1
Shipping Conditions	Shipped in Dry Ice
Therapeutic Area	Inflammation Oncology & Inflammation
Unit Size	500 Assay Points

Video gallery

How it works

Total IRAK4 assay principle

This total IRAK4 assay quantifies the expression level of IRAK4 in a cell lysate. Unlike Western Blot, the assay is entirely plate-based and does not require gels, electrophoresis, or transfer. The Total-IRAK4 assay uses two labeled antibodies: one coupled to a donor fluorophore, the other to an acceptor. Both antibodies are highly specific for a distinct epitope on the protein. In presence of IRAK4 in a cell extract, the addition of these conjugates brings the donor fluorophore into close proximity with the acceptor and thereby generates a FRET signal. Its intensity is directly proportional to the concentration of the protein present in the sample, and provides a means of assessing the protein’s expression under a no-wash assay format.

Total IRAK4 2-plate Assay protocol

The 2 plate protocol involves culturing cells in a 96-well plate before lysis, then transferring lysates into a 384-well low volume detection plate before adding Total IRAK4 HTRF detection reagents. This protocol enables the cells' viability and confluence to be monitored.

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Total IRAK4 1-plate assay protocol

Detection of total IRAK4 with HTRF reagents can be performed in a single plate used for culturing, stimulation, and lysis. No washing steps are required. This HTS designed protocol enables miniaturization while maintaining robust HTRF quality

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Assay validation

Endogenous level of IRAK4 on THP-1 cells

THP-1 cells were plated in a 96-well plate (50 µL per well) and incubated for 15 min at 37°C, 5% CO2. Cells were then lysed with 50 µL of supplemented lysis buffer #1 at 2X for 30 minutes at RT under gentle shaking. 16 µL of lysate were transferred into a 384-well low volume white microplate, and 4 µL of the HTRF Total IRAK4 detection reagents were added. The HTRF signal was recorded after 4h of incubation.

Simplified pathway

IRAK4 is a master regulator of TLR/IL1R signaling

IRAK4 is a protein Kinase belonging to the interleukin-1 receptor-associated kinases (IRAKs), which are involved in signaling pathways tranduced by the Toll/Interleukin-1 receptor superfamily upon PAMPS recognition. Like IRAK2 and IRAK1, IRAK4 signals through TRAF6, leading to the activation of the NFκB and MAPK pathways, and resulting in the transcription of pro-inflammatory cytokines. Unlike other IRAK proteins, the suppression of IRAK4 activity completely impairs TLR receptor signaling, making it a pivotal component in the IL-1/TLR signaling pathway.