Recombinant human IRAK-1 protein (Tagged)
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Recombinant human IRAK-1 protein (Tagged) is a Human Full Length protein, expressed in Sf9 cells, with >85%, suitable for SDS-PAGE, FuncS.
View Alternative Names
IRAK, IRAK1, Interleukin-1 receptor-associated kinase 1, IRAK-1
- FuncS
Supplier Data
Functional Studies - Recombinant human IRAK-1 protein (Tagged) (AB268680)
Recombinant full-length Human IRAK1 protein activity determined to be 36.5 nmol/min/mg in functional studies.
- SDS-PAGE
Supplier Data
SDS-PAGE - Recombinant human IRAK-1 protein (Tagged) (AB268680)
Recombinant Human IRAK1 protein purity determined using SDS-PAGE analysis.
Reactivity data
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
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
IRAK-1 mediates the inflammatory response by promoting the production of cytokines and other inflammatory mediators. It is a component of the Myddosome a multi-protein complex that assembles upon receptor activation and includes MyD88 an adaptor protein needed for signal transduction. IRAK-1 phosphorylates other targets and itself leading to its own degradation which is an important step for turning off the signaling and preventing prolonged activation. Its precise activity modulation ensures balanced immune responses and prevents overreaction that could cause tissue damage.
Pathways
IRAK-1 functions in the IL-1 and Toll-like receptor signaling pathways both of which are important for innate immunity. In these pathways IRAK-1 interacts with key proteins such as TRAF6 which transduces signals leading to NF-κB and MAPK activation critical for inflammatory gene expression. Its role in these pathways highlights the importance of proper function and regulation as deficiencies or dysregulation can result in inappropriate immune responses.
Specifications
Form
Liquid
Additional notes
Affinity purified.
General info
Function
Serine/threonine-protein kinase that plays a critical role in initiating innate immune response against foreign pathogens. Involved in Toll-like receptor (TLR) and IL-1R signaling pathways. Is rapidly recruited by MYD88 to the receptor-signaling complex upon TLR activation. Association with MYD88 leads to IRAK1 phosphorylation by IRAK4 and subsequent autophosphorylation and kinase activation. Phosphorylates E3 ubiquitin ligases Pellino proteins (PELI1, PELI2 and PELI3) to promote pellino-mediated polyubiquitination of IRAK1. Then, the ubiquitin-binding domain of IKBKG/NEMO binds to polyubiquitinated IRAK1 bringing together the IRAK1-MAP3K7/TAK1-TRAF6 complex and the NEMO-IKKA-IKKB complex. In turn, MAP3K7/TAK1 activates IKKs (CHUK/IKKA and IKBKB/IKKB) leading to NF-kappa-B nuclear translocation and activation. Alternatively, phosphorylates TIRAP to promote its ubiquitination and subsequent degradation. Phosphorylates the interferon regulatory factor 7 (IRF7) to induce its activation and translocation to the nucleus, resulting in transcriptional activation of type I IFN genes, which drive the cell in an antiviral state. When sumoylated, translocates to the nucleus and phosphorylates STAT3.
Sequence similarities
Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family. Pelle subfamily.
Post-translational modifications
Following recruitment on the activated receptor complex, phosphorylated on Thr-209, probably by IRAK4, resulting in a conformational change of the kinase domain, allowing further phosphorylations to take place. Thr-387 phosphorylation in the activation loop is required to achieve full enzymatic activity.. Polyubiquitinated by TRAF6 after cell stimulation with IL-1-beta by PELI1, PELI2 and PELI3. Polyubiquitination occurs with polyubiquitin chains linked through 'Lys-63'. Ubiquitination promotes interaction with NEMO/IKBKG. Also sumoylated; leading to nuclear translocation.
Subcellular localisation
Nucleus
Target data
Complementary Products
Product promise
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