Published in FEBS Lett on October 15, 1973
Lithium phthalocyanine: a probe for electron paramagnetic resonance oximetry in viable biological systems. Proc Natl Acad Sci U S A (1993) 2.50
Protocol for emergency EPR dosimetry in fingernails. Radiat Meas (2007) 2.41
EPR dosimetry in chemically treated fingernails. Radiat Meas (2007) 2.33
Effects of charged amino acid mutations on the bimolecular kinetics of reduction of yeast iso-1-ferricytochrome c by bovine ferrocytochrome b5. Biochemistry (1993) 2.14
Identification of the Cu2+ binding sites in the N-terminal domain of the prion protein by EPR and CD spectroscopy. Biochemistry (2000) 2.02
Bacterial expression of a mitochondrial cytochrome c. Trimethylation of lys72 in yeast iso-1-cytochrome c and the alkaline conformational transition. Biochemistry (1998) 2.01
A standardized test for the identification and characterization of melanins using electron paramagnetic resonance (EPR) spectroscopy. Pigment Cell Res (1993) 1.80
Inhibition of leukemic HL60 cell growth by transferrin-gallium: effects on ribonucleotide reductase and demonstration of drug synergy with hydroxyurea. Blood (1988) 1.78
Applications of magnetic resonance in model systems: cancer therapeutics. Neoplasia (2000) 1.72
Stimulation of reactive oxygen, but not reactive nitrogen species, in vascular endothelial cells exposed to low levels of arsenite. Free Radic Biol Med (1999) 1.72
Chromium(VI) reductase activity is associated with the cytoplasmic membrane of anaerobically grown Shewanella putrefaciens MR-1. J Appl Microbiol (2000) 1.68
An EPR investigation of the products of the reaction of cytosolic and mitochondrial aconitases with nitric oxide. J Biol Chem (1997) 1.59
Electron paramagnetic resonance in human fingernails: the sponge model implication. Radiat Environ Biophys (2008) 1.55
Determinants of cytochrome c pro-apoptotic activity. The role of lysine 72 trimethylation. J Biol Chem (2000) 1.50
In vivo dosimetry by electron spin resonance spectroscopy. Health Phys (1968) 1.43
Site-directed mutagenesis of cytochrome c shows that an invariant Phe is not essential for function. Nature (1985) 1.41
Studies on human uterine cervix and rat uterus using S-, X- and Q-band electron-spin-resonance spectroscopy. Biochem J (1984) 1.38
Evidence that an iron-nickel-carbon complex is formed by reaction of CO with the CO dehydrogenase from Clostridium thermoaceticum. Proc Natl Acad Sci U S A (1985) 1.37
Reduction of horse heart ferricytochrome c by bovine liver ferrocytochrome b5. Experimental and theoretical analysis. Biochemistry (1991) 1.37
Replacement of cysteine-107 of Saccharomyces cerevisiae iso-1-cytochrome c with threonine: improved stability of the mutant protein. Protein Eng (1989) 1.35
Development and evaluation of biocompatible films of polytetrafluoroethylene polymers holding lithium phthalocyanine crystals for their use in EPR oximetry. Biosens Bioelectron (2005) 1.30
The effects of ketamine-xylazine anesthesia on cerebral blood flow and oxygenation observed using nuclear magnetic resonance perfusion imaging and electron paramagnetic resonance oximetry. Brain Res (2001) 1.29
Replacement of the proximal histidine iron ligand by a cysteine or tyrosine converts heme oxygenase to an oxidase. Biochemistry (1999) 1.29
Simultaneous multi-site EPR spectroscopy in vivo. Magn Reson Med (1993) 1.28
Electronically tunable surface-coil-type resonator for L-band EPR spectroscopy. J Magn Reson (2000) 1.26
Transmutation of a heme protein. Proc Natl Acad Sci U S A (1993) 1.25
A myoglobin variant with a polar substitution in a conserved hydrophobic cluster in the heme binding pocket. Biochim Biophys Acta (1997) 1.25
Radiation dose reconstruction from L-band in vivo EPR spectroscopy of intact teeth: Comparison of methods. Radiat Meas (2007) 1.25
Binding of iron to neuromelanin of human substantia nigra and synthetic melanin: an electron paramagnetic resonance spectroscopy study. Free Radic Biol Med (1997) 1.23
Critical oxygen tension in rat brain: a combined (31)P-NMR and EPR oximetry study. Am J Physiol Regul Integr Comp Physiol (2000) 1.22
Microimmiscibility and three-dimensional dynamic structures of phosphatidylcholine-cholesterol membranes: translational diffusion of a copper complex in the membrane. Biochemistry (1990) 1.20
Modulation of the activities of catalase-peroxidase HPI of Escherichia coli by site-directed mutagenesis. Biochemistry (2000) 1.19
Multiquantum EPR of the mixed valence copper site in nitrous oxide reductase. Biophys J (1993) 1.19
EPR spectrometer for clinical applications. Magn Reson Med (2005) 1.16
Intraphagosomal oxygen in stimulated macrophages. J Cell Physiol (1995) 1.16
Hypoxia-sensitive NMR contrast agents. Magn Reson Med (1986) 1.14
Assessment of cerebral pO2 by EPR oximetry in rodents: effects of anesthesia, ischemia, and breathing gas. Brain Res (1995) 1.13
Noninvasive measurement of the pH inside the gut by using pH-sensitive nitroxides. An in vivo EPR study. Magn Reson Med (1996) 1.13
High spatial resolution multi-site EPR oximetry. The use of convolution-based fitting method. J Magn Reson (2001) 1.12
Proton linkage in formation of the cytochrome c-cytochrome c peroxidase complex: electrostatic properties of the high- and low-affinity cytochrome binding sites on the peroxidase. Biochemistry (1994) 1.12
Multifrequency EPR evidence for a bimetallic center at the CuA site in cytochrome c oxidase. FEBS Lett (1990) 1.11
Non-invasive in vivo characterization of release processes in biodegradable polymers by low-frequency electron paramagnetic resonance spectroscopy. Biomaterials (1996) 1.11
Binding of 2-formylpyridine monothiosemicarbazonato copper II to cat and normal human hemoglobins. J Inorg Biochem (1982) 1.11
Free radical increases in cancer: evidence that there is not a real increase. Science (1977) 1.11
Paramagnetic changes during development of a transplanted AKR-J leukemia in mice as measured by electron spin resonance. Cancer Res (1973) 1.10
Dissociation of heme from myoglobin and cytochrome b5: comparison of behavior in solution and the gas phase. Biochemistry (1997) 1.09
In vivo oximetry using EPR and India ink. Magn Reson Med (1995) 1.09
The effects of endotoxin on oxygen consumption of various cell types in vitro: an EPR oximetry study. Free Radic Biol Med (1995) 1.08
Electron spin resonance studies of changes in membrane fluidity of Chinese hamster ovary cells during the cell cycle. Biochim Biophys Acta (1980) 1.08
Role of arginine-38 in regulation of the cytochrome c oxidation-reduction equilibrium. Biochemistry (1989) 1.08
Use of nitroxides for assessing perfusion, oxygenation, and viability of tissues: in vivo EPR and MRI studies. Magn Reson Med (1996) 1.08
Type 2-depleted fungal laccase. Biochem J (1988) 1.08
Estimation of oxygen distribution in RIF-1 tumors by diffusion model-based interpretation of pimonidazole hypoxia and eppendorf measurements. Radiat Res (2001) 1.07
In vivo EPR dosimetry of accidental exposures to radiation: experimental results indicating the feasibility of practical use in human subjects. Appl Radiat Isot (2000) 1.05
Interaction of neuromelanin and iron in substantia nigra and other areas of human brain. Neuroscience (1996) 1.05
Oxygen gradients in CHO cells: measurement and characterization by electron spin resonance. J Cell Physiol (1989) 1.04
The peroxidase activity of a hemin--DNA oligonucleotide complex: free radical damage to specific guanine bases of the DNA. J Am Chem Soc (2001) 1.04
Spectrophotometric analysis of the interaction between cytochrome b5 and cytochrome c. Biochemistry (1982) 1.02
The effect of melanin on iron associated decomposition of hydrogen peroxide. Free Radic Biol Med (1988) 1.02
Comparison of EPR-visible Cu(2+) sites in pMMO from Methylococcus capsulatus (Bath) and Methylomicrobium album BG8. Biophys J (2000) 1.01
Reduced blood flow and oxygenation in SA-1 tumours after electrochemotherapy with cisplatin. Br J Cancer (2002) 1.01
Kinetics of enzyme-mediated reduction of lipid soluble nitroxide spin labels by living cells. Biochim Biophys Acta (1988) 1.01
Mutagenic, electrochemical, and crystallographic investigation of the cytochrome b5 oxidation-reduction equilibrium: involvement of asparagine-57, serine-64, and heme propionate-7. Biochemistry (1990) 1.01
Measurement of intracellular oxygen concentration using the spin label TEMPOL. Magn Reson Med (1985) 1.00
Redesign of the interior hydrophilic region of mitochondrial cytochrome c by site-directed mutagenesis. Biochemistry (1993) 1.00
Effects of oxygen on the metabolism of nitroxide spin labels in cells. Biochemistry (1989) 0.99
Ion-exchange in melanin: an electron spin resonance study with lanthanide probes. Science (1976) 0.99
Changes of oxygen tension in experimental tumors after a single dose of X-ray irradiation. Cancer Res (1995) 0.99
Inhibition of malignant cell growth by 311, a novel iron chelator of the pyridoxal isonicotinoyl hydrazone class: effect on the R2 subunit of ribonucleotide reductase. Clin Cancer Res (2001) 0.99
Concentration of Cu, EPR-detectable Cu, and formation of cupric-ferrocyanide in membranes with pMMO. J Inorg Biochem (1998) 0.99
The role of redox-active metals in the mechanism of action of bleomycin. Chem Biol Interact (1990) 0.99
Radiation effects on plasma electron-spin-resonance (ESR) spectra of cancer patients. Radiology (1972) 0.99
Assignment of proximal histidyl imidazole exchangeable proton NMR resonances to individual subunits in hemoglobins A, Boston, Iwate and Milwaukee. Biochem Biophys Res Commun (1980) 0.99
Novel free radicals in synthetic and natural pheomelanins: distinction between dopa melanins and cysteinyldopa melanins by ESR spectroscopy. Proc Natl Acad Sci U S A (1982) 0.98
Type 2 Cu2+ in pMMO from Methylomicrobium album BG8. Biophys J (1999) 0.98
Effect on regrowth delay in a murine tumor of scheduling split-dose irradiation based on direct pO2 measurements by electron paramagnetic resonance oximetry. Radiat Res (1998) 0.98
Amino acid substitutions at tryptophan-51 of cytochrome c peroxidase: effects on coordination, species preference for cytochrome c, and electron transfer. Biochemistry (1991) 0.98
The roles of neuromelanin, binding of metal ions, and oxidative cytotoxicity in the pathogenesis of Parkinson's disease: a hypothesis. J Neural Transm Park Dis Dement Sect (1994) 0.98
Mutation-induced perturbation of the cytochrome c alkaline transition. Biochemistry (1989) 0.97
Recombinant human erythrocyte cytochrome b5. Biochemistry (1994) 0.97
Biochemical and biophysical applications of electron spin resonance. Methods Biochem Anal (1983) 0.97
Paramagnetic changes in cancer: DMBA-induced tumours studied in non-lyophilized and lyophilized tissues. Br J Cancer (1979) 0.96
Electrochemical, kinetic, and circular dichroic consequences of mutations at position 82 of yeast iso-1-cytochrome c. Biochemistry (1990) 0.96
Monooxygenase activity of cytochrome c peroxidase. J Biol Chem (1992) 0.96
Chemical and electrochemical reduction rates of cyclic nitroxides (nitroxyls). J Pharm Sci (1991) 0.96
Nonperturbing test for cytotoxicity in isolated cells and spheroids, using electron paramagnetic resonance. Magn Reson Med (1991) 0.96
The proximal ligand variant His93Tyr of horse heart myoglobin. Biochemistry (1995) 0.96
Structural and spectroscopic studies of azide complexes of horse heart myoglobin and the His-64-->Thr variant. Biochem J (1998) 0.95
Direct evidence of nitrogen coupling in the copper(II) complex of bovine serum albumin by S-band electron spin resonance technique. J Inorg Biochem (1985) 0.95
Increased tumor oxygenation and drug uptake during anti-angiogenic weekly low dose cyclophosphamide enhances the anti-tumor effect of weekly tirapazamine. Curr Cancer Drug Targets (2009) 0.94
Characterization of BphF, a Rieske-type ferredoxin with a low reduction potential. Biochemistry (2001) 0.94
Effect of oxygen on freezing damage. 3. Modification by -mercaptoethylamine. Cryobiology (1971) 0.93
Hazards of radiation exposure for pregnant women. JAMA (1978) 0.93
EPR method for the measurement of cellular sulfhydryl groups. FEBS Lett (1991) 0.93
In vivo oximetry using a nitroxide-liposome system. Magn Reson Med (1991) 0.93
Electron spin resonance studies of carcinogenesis. Adv Cancer Res (1972) 0.93
Dextran magnetite as a liver contrast agent. Magn Reson Med (1991) 0.93
Crosslinking of cytochrome c and cytochrome b5 with a water-soluble carbodiimide. Reaction conditions, product analysis and critique of the technique. Eur J Biochem (1989) 0.93
Noninvasive assessment of cerebral oxygenation during acclimation to hypobaric hypoxia. J Cereb Blood Flow Metab (2000) 0.92