Phospho-NOS3 (Ser615) Antibody is a rabbit-derived polyclonal antibody with high specificity for the phosphorylated form of NOS3 at Ser615. Key properties include:
NOS3 (endothelial nitric oxide synthase) produces NO, a key vasodilator. Phosphorylation at Ser615 modulates enzymatic activity:
Activation Pathways: AMPK phosphorylates Ser615, enhancing NO production under calcium/calmodulin regulation .
Functional Impact: Phosphorylation stabilizes eNOS dimerization, critical for vascular tone and angiogenesis .
Disease Relevance: Dysregulation linked to ischemic stroke, hypertension, and coronary artery disease .
| Application | Dilution Range | Sample Types |
|---|---|---|
| Western Blot | 1:500 – 1:2000 | Human placenta, mouse spleen, rat kidney |
| ELISA | 1:40,000 | Cell lysates, serum |
| IHC/IF | 1:200 – 1:1000 | Paraffin-embedded tissues |
WB: Detects a single band at 133 kDa in human HepG2, THP-1, and mouse tissues .
IHC: Localizes to endothelial cells in lung cancer, spleen, and kidney tissues .
Vascular Studies: Used to confirm eNOS activation in VEGF-induced angiogenesis .
Disease Models: Detects phosphorylated eNOS in endothelial dysfunction linked to diabetes and atherosclerosis .
Mechanistic Insights: Phospho-Ser615 antibodies revealed AMPK’s dual role in activating/inhibiting eNOS via Thr495 phosphorylation under low calcium .