Cellular damage to lipids, proteins, and nucleic acids by endogenously generated peroxynitrite is associated with a number of neurological diseases. Results of earlier studies in this laboratory demonstrated that the ability of peroxynitrite to damage proteins is strongly dependent upon the hydrogen ion concentration and physiological levels of carbon dioxide and that it probably does not contribute significantly to formation of protein carbonyl derivatives or to the oxidation of methionine residues, both of which are widely used markers of oxidative protein damage. In continuing studies to identify major targets for peroxynitrite-dependent modification of proteins, the ability of peroxynitrite to nitrate tyrosine residues in bovine serum albumin (BSA) and glutamine synthetase (GS) was determined. Although these two proteins contain nearly identical numbers of tyrosine residues per subunit, they exhibit markedly different pH-dependent profiles of peroxynitrite-dependent nitration. It is thus evident that nitration of protein tyrosine residues is strongly dependent upon the molecular distribution of tyrosine residues and protein conformation. - peroxynitrite, protein carbonyls, peroxynitrite-carbon dioxide adducts
| Noda, Yasuko; Berlett, Barbara S; Stadtman, Earl R et al. (2007) Identification of enzymes and regulatory proteins in Escherichia coli that are oxidized under nitrogen, carbon, or phosphate starvation. Proc Natl Acad Sci U S A 104:18456-60 |
| Tanaka, Mikiei; Chock, P Boon; Stadtman, Earl R (2007) Oxidized messenger RNA induces translation errors. Proc Natl Acad Sci U S A 104:66-71 |
| Miyoshi, Noriyuki; Oubrahim, Hammou; Chock, P Boon et al. (2006) Age-dependent cell death and the role of ATP in hydrogen peroxide-induced apoptosis and necrosis. Proc Natl Acad Sci U S A 103:1727-31 |
| Khan, Mohammed A S; Chock, P Boon; Stadtman, Earl R (2005) Knockout of caspase-like gene, YCA1, abrogates apoptosis and elevates oxidized proteins in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A 102:17326-31 |
| Stadtman, Earl R; Van Remmen, Holly; Richardson, Arlan et al. (2005) Methionine oxidation and aging. Biochim Biophys Acta 1703:135-40 |
| Lee, Byung Cheon; Lee, Yong Kwon; Lee, Ho-Joung et al. (2005) Cloning and characterization of antioxidant enzyme methionine sulfoxide-S-reductase from Caenorhabditis elegans. Arch Biochem Biophys 434:275-81 |
| Stadtman, Earl R; Arai, Hirofumi; Berlett, Barbara S (2005) Protein oxidation by the cytochrome P450 mixed-function oxidation system. Biochem Biophys Res Commun 338:432-6 |
| Oubrahim, Hammou; Wang, Jun; Stadtman, Earl R et al. (2005) Molecular cloning and characterization of murine caspase-12 gene promoter. Proc Natl Acad Sci U S A 102:2322-7 |
| Arai, Hirofumi; Berlett, Barbara S; Chock, P Boon et al. (2005) Effect of bicarbonate on iron-mediated oxidation of low-density lipoprotein. Proc Natl Acad Sci U S A 102:10472-7 |
| Williams, W M; Stadtman, E R; Moskovitz, J (2004) Ageing and exposure to oxidative stress in vivo differentially affect cellular levels of PrP in mouse cerebral microvessels and brain parenchyma. Neuropathol Appl Neurobiol 30:161-8 |
Showing the most recent 10 out of 34 publications
