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neutrophil cytosolic factor 4, 40a

Cat：P06159

Summary:

【Derived From】： E.coli

【Endotoxin】： Not measured

【Amino Acid】： 1-349aa

【Purity】： ≥85% by SDS-PAGE.

【Name】： NCF4

【Full Name】： neutrophil cytosolic factor 4，40a

【Uniprot】： Q15080

【Gene ID】： 4689

【Species Reactivity】： Human Mouse

【Mol Mass】： 39kDa

【Application】： Immunology research

【Purification】： NI-NTA affinity purification

【Bioactive】： N0

【Tag】： With a 6×His tag at the N/C-terminus.

【Concentration】： 1mg/ml by SDS-PAGE.

Store:

【Reconstitution】： Reconstituted protein solution can be diluted with distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. (It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water.)

【Storage】： Reconstituted protein solution can be stored at 4-7℃ for 1-2 weeks， stored at < -20℃ for 1 year.

【Formulation】： Powder: Lyophilized from a 0.2 μm filtered solution of 2-8M Urea, 20mM Tris-HCl, 150mM NaCl, 1mM DTT, PH7.2-8.0.

Background:

The protein encoded by this gene is a cytosolic regulatory component of the superoxide-producing phagocyte NADPH-oxidase, a multicomponent enzyme system important for host defense. This protein is preferentially expressed in cells of myeloid lineage. It interacts primarily with neutrophil cytosolic factor 2 (NCF2/p67-phox) to form a complex with neutrophil cytosolic factor 1 (NCF1/p47-phox), which further interacts with the small G protein RAC1 and translocates to the membrane upon cell stimulation. This complex then activates flavocytochrome b, the membrane-integrated catalytic core of the enzyme system. The PX domain of this protein can bind phospholipid products of the PI(3) kinase, which suggests its role in PI(3) kinase-mediated signaling events. The phosphorylation of this protein was found to negatively regulate the enzyme activity. Alternatively spliced transcript variants encoding distinct isoforms have been observed.

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