NOX4 Protein, Human (Cell-Free, His)

When NOX4 protein complexes with CYBA/p22phox, superoxide is generated in cells. It regulates signaling cascades and inhibits phosphatases. NOX4 Protein, Human (His) is the recombinant human-derived NOX4, expressed by E. coli Cell-free, with N-10*His labeled tag.

NOX4 protein is a constitutive NADPH oxidase that generates superoxide within cells when it forms a complex with CYBA/p22phox. It is involved in regulating signaling cascades, potentially through inhibiting phosphatases. NOX4 may act as an oxygen sensor, influencing the activity of the KCNK3/TASK-1 potassium channel and HIF1A. It may also play a role in regulating insulin signaling, apoptosis, bone resorption, and lipolysaccharide-induced activation of NFKB. Additionally, NOX4 might produce superoxide in the nucleus, contributing to the regulation of gene expression following cell stimulation. Notably, isoform 3 is non-functional, while isoform 5 and isoform 6 exhibit reduced activity. NOX4 is implicated in redox signaling in vascular cells, generating reactive oxygen species (ROS) constitutively and NADPH-dependently. It modulates the activation of ERK1/2 and the ELK1 transcription factor in the nucleus and can induce nuclear DNA damage. Isoform 4, compared to isoform 1, demonstrates increased activity.

Human

E. coli Cell-free

N-10*His

Q9NPH5-1 (M1-S578)

50507

Full Length of Isoform-1

MAVSWRSWLANEGVKHLCLFIWLSMNVLLFWKTFLLYNQGPEYHYLHQMLGLGLCLSRASASVLNLNCSLILLPMCRTLLAYLRGSQKVPSRRTRRLLDKSRTFHITCGVTICIFSGVHVAAHLVNALNFSVNYSEDFVELNAARYRDEDPRKLLFTTVPGLTGVCMVVVLFLMITASTYAIRVSNYDIFWYTHNLFFVFYMLLTLHVSGGLLKYQTNLDTHPPGCISLNRTSSQNISLPEYFSEHFHEPFPEGFSKPAEFTQHKFVKICMEEPRFQANFPQTWLWISGPLCLYCAERLYRYIRSNKPVTIISVMSHPSDVMEIRMVKENFKARPGQYITLHCPSVSALENHPFTLTMCPTETKATFGVHLKIVGDWTERFRDLLLPPSSQDSEILPFIQSRNYPKLYIDGPFGSPFEESLNYEVSLCVAGGIGVTPFASILNTLLDDWKPYKLRRLYFIWVCRDIQSFRWFADLLCMLHNKFWQENRPDYVNIQLYLSQTDGIQKIIGEKYHALNSRLFIGRPRWKLLFDEIAKYNRGKTVGVFCCGPNSLSKTLHKLSNQNNSYGTRFEYNKESFS

Approximately 66 kDa

≥ 90%, as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a 0.22 μm filtered solution of 20 mM Tris-HCl, 0.15 M NaCl, 0.05% Brij-78, 6% trehalose, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.