Source:http://linkedlifedata.com/resource/umls/id/C1517299
NCI: Neutrophils respond to bacterial infection by releasing reactive oxygen species that kill bacteria and by expressing chemokines that attract other immune cells to the site of infection. The multisubunit enzyme NADPH oxidase, expressed by neutrophils, produces reactive oxygen species that are rapidly released in what is known as the respiratory burst. Activity of the NADPH oxidase is induced by fMLP receptor ligands, formylated peptides from bacteria. The fMLP receptor is a G-protein coupled receptor, FPR-1, that activates Map kinase pathways and phospholipase C. Phospholipase C activation releases IP3 and calcium, activating protein kinase C and also activating the transcription factor NFAT, which contributes to activation of chemokine genes. One of the components of the NADPH oxidase is p47phox. PKC activation phosphorylates p47phox to activate NADPH oxidase activity. Activation of Map kinase cascades leads to Erk1/Erk2 dependent p47phox phosphorylation as well as activation of the Elk-1 transcription f