Additional info: |
eNOS catalyzes the formation of NO from L-arginine in many cell types including vascular endothelium, bronchiolar epithelium, cardiac myocytes, spleen, and kidney. Although eNOS was initially characterized as a constitutive enzyme, expression of eNOS mRNA is altered by many factors including shear stress, fibroblast growth factor, hypoxia, and LPS. eNOS is myristoylated and palmitoylated at the N-terminus, modifications which are required for localization to the plasmalalemmal caveolae of endothelial cells. Additionally, eNOS is phosphorylated on Ser1179 by protein kinase Akt resulting in an increase in NOS activity. |