The gene DUOX1 (dual oxidase 1) encodes a protein belonging to the family of NADPH oxidase/heme peroxidase proteins, Duox, and shares upto 85% amino acid similarity with another Duox isoform, Duox2. It contains an NAD(P)H oxidase domain and a heme peroxidase domain. The NAD(P)H oxidase domain of this protein is involved in H2O2 production and the heme peroxidase domain is similar to several peroxidases, but its function is yet to be characterized. The expression of Duox1 is stimulated by Th2 (T helper) cytokines, IL-4 (interleukin-4) and IL-13 (interleukin-13). The gene is mapped to human chromosome 15q15.3.
Immunogen
Recombinant fragment corresponding to a region within amino acids 257 and 566 of DUOX1 according to AAI14939
Application
Suggested starting dilutions are as follows: IHC-P: 1:100-1:1000, WB: 1:500-1:3000. Not yet tested in other applications. Optimal working dilutions should be determined experimentally by the end user.
Biochem/physiol Actions
The gene DUOX1 (dual oxidase 1) encodes a dual function NAD(P)H oxidase/peroxidase that serves as an important source for the production of hydrogen peroxide in respiratory tract epithelium. H2O2, thus produced, is involved in the regulation of cellular signaling pathways that participate in the production of inflammatory effectors. ATP-mediated activation of duox1 causes activation of ERK1/2 (extracellular signal-regulated kinase ½) and NFκ-B (nuclear factor κ-light-chain-enhancer of activated B cells) pathways. Duox1 is also involved in the regulation of pathways associated with production of various mucins, matrix metalloproteinase-9, and other inflammatory mediators, in response to environmental or bacterial stimuli.
Features and Benefits
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Physical form
0.1M Tris, 0.1M Glycine, 20% Glycerol (pH7). 0.01% Thimerosal was added as a preservative.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
ATP-mediated activation of the NADPH oxidase DUOX1 mediates airway epithelial responses to bacterial stimuli.
Boots AW
The Journal of Biological Chemistry, 284, 17858-17867 (2009)
Differential regulation of dual NADPH oxidases/peroxidases, Duox1 and Duox2, by Th1 and Th2 cytokines in respiratory tract epithelium.
Harper RW
Febs Letters, 579, 4911-4917 (2005)
Effect of iodide on nicotinamide adenine dinucleotide phosphate oxidase activity and Duox2 protein expression in isolated porcine thyroid follicles.
Morand S
Endocrinology, 144, 1241-1248 (2003)
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