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Cardiovasc Res. 2007 Jul 15;75(2):247-60. Epub 2007 Apr 3.

Life history of eNOS: partners and pathways.

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  • 1Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.

Abstract

The complex regulation of eNOS (endothelial nitric oxide synthase) in cardiovascular physiology occurs at multiple stages. eNOS mRNA levels are controlled both at the transcriptional and post-transcriptional phases, and epigenetic mechanisms appear to modulate tissue-specific eNOS expression. The eNOS enzyme reversibly associates with a diverse family of protein partners that regulate eNOS sub-cellular localization, catalytic function, and biological activity. eNOS enzyme activity and sub-cellular localization are intimately controlled by post-translational modifications including phosphorylation, nitrosylation, and acylation. The multiple extra-cellular stimuli affecting eNOS function coordinate their efforts through these key modifications to dynamically control eNOS and NO bioactivity in the vessel wall. This review will focus on the biochemical partners and perturbations of the eNOS protein as this vital enzyme undergoes modulation by diverse signal transduction pathways in the vascular endothelium.

PMID:
17466957
[PubMed - indexed for MEDLINE]
PMCID:
PMC2682334
Free PMC Article
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