Mitochondria-derived oxygen-free radical(s) are important mediators of oxidative cellular injury. It is widely hypothesized that excess NO enhances O(2)(center dot-) generated by mitochondria under certain pathological conditions. In the…
To probe the binding of a peptide agonist to a G-protein coupled receptor in native membranes, the spin-labeled amino acid analogue 4-amino-4-carboxy-2,2,6,6-tetramethyl-piperidino-1-oxyl (TOAC) was substituted at either position 4 or 9 within the…