Search Results - "GUILES, R. D."

Direct Voltammetric Investigation of the Electrochemical Properties of Human Hemoglobin:  Relevance to Physiological Redox Chemistry by Blankman, Jeffrey I, Shahzad, Nazim, Miller, Cary J, Guiles, R. D

“…Voltammetric measurements on solutions of human hemoglobin using gold electrodes modified with ω-hydroxyalkanethiols have yielded the first direct measure of…”
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Sulfur K-Edge X-Ray Absorption Spectroscopy: A Spectroscopic Tool to Examine the Redox State of S-Containing Metabolites in vivo by Rompel, Annette, Cinco, Roehl M., Latimer, Mathew J., McDermott, Ann E., Guiles, R. D., Quintanlha, Alexandre, Krauss, Ronald M., Sauer, Kenneth, Yachandra, Vittal K., Klein, Melvin P.

“…The sulfur K-edge x-ray absorption spectra for the amino acids cysteine and methionine and their corresponding oxidized forms cystine and methionine sulfoxide…”
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Voltammetric Probes of Cytochrome Electroreactivity:  The Effect of the Protein Matrix on Outer-Sphere Reorganization Energy and Electronic Coupling Probed through Comparisons with the Behavior of Porphyrin Complexes by Blankman, Jeffrey I, Shahzad, Nazim, Dangi, Bindi, Miller, Cary J, Guiles, R. D

“…Using surface-modified electrodes composed of ω-hydroxyalkanethiols, an experimentally based value for the inner-sphere reorganization energy of the…”
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The S3 state of photosystem II: differences between the structure of the manganese complex in the S2 and S3 states determined by x-ray absorption spectroscopy by Guiles, R. D, Zimmermann, J. L, McDermott, Ann E, Yachandra, Vittal K, Cole, James L, Dexheimer, S. L, Britt, R. D, Wieghardt, Karl, Bossek, Ursula

“…O2-evolving photosystem II (PSII) membranes from spinach have been cryogenically stabilized in the S3 state of the oxygen-evolving complex. The cryogenic…”
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Effect of Axial Ligand Plane Reorientation on Electronic and Electrochemical Properties Observed in the A67V Mutant of Rat Cytochrome b5 by SARMA, Siddhartha, DIGATE, Russell J., GOODIN, David B., MILLER, Cary J., GUILES, R. D.

“…Mutational studies directed at evaluating the effect of the axial ligand plane orientation on electrochemical properties of cytochrome b5 have been performed…”
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The S0 state of photosystem II induced by hydroxylamine: differences between the structure of the manganese complex in the S0 and S1 states determined by x-ray absorption spectroscopy by Guiles, R. D, Yachandra, Vittal K, McDermott, Ann E, Cole, James L, Dexheimer, S. L, Britt, R. D, Sauer, Kenneth, Klein, Melvin P

“…Hydroxylamine at low concentrations causes a two-flash delay in the first maximum flash yield of oxygen evolved from spinach photosystem II (PSII)…”
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Characterization of a Site-Directed Mutant of Cytochrome b5 Designed To Alter Axial Imidazole Ligand Plane Orientation by SARMA, Siddhartha, DANGI, Bindi, YAN, ChunHua, DIGATE, Russell J., BANVILLE, D. L., GUILES, R. D.

“…Mutants of cytochrome b5 were designed to achieve reorientation of individual axial imidazole ligands. The orientation of the axial ligand planes is thought to…”
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Pseudocontact shifts used in the restraint of the solution structures of electron transfer complexes by Guiles, R.D, Sarma, Siddhartha, DiGate, Russell J, Banville, Debra, Basus, Vladimir J, Kuntz, Irwin D, Waskell, Lucy

“…The geometry of the ferricytochrome b5-ferricytochrome c complex has been analysed using long-range interprotein paramagnetic dipolar shifts. Heteronuclear…”
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Novel heteronuclear methods of assignment transfer from a diamagnetic to a paramagnetic protein: application to rat cytochrome b5 by Guiles, R. D, Basus, Vladimir J, Sarma, Siddhartha, Malpure, Swati, Fox, Kristine M, Kuntz, Irwin D, Waskell, Lucy

“…15N and 1H resonance assignments for backbone and side-chain resonances of both equilibrium forms of rat ferricytochrome b5 have been obtained, using a…”
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NMR studies of the structure and dynamics of peptide E, an endogenous opioid peptide that binds with high affinity to multiple opioid receptor subtypes by Yan, Chunhua, Digate, Russell J., Guiles, R. D.

“…Structural and dynamic properties of opioid peptide E have been examined in an sodium dodecyl sulfate (SDS) micelle. Structural and dynamic studies both…”
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Structural studies of cytochrome b5: complete sequence-specific resonance assignments for the trypsin-solubilized microsomal ferrocytochrome b5 obtained from pig and calf by Guiles, R. D, Altman, John, Kuntz, Irwin D, Waskell, Lucy

“…We report complete sequence-specific proton resonance assignments for the trypsin-solubilized microsomal ferrocytochrome b5 obtained from calf liver. In…”
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Kinetic Parameters for Cytochrome c via Insulated Electrode Voltammetry by Terrettaz, Samuel, Cheng, Jun, Miller, Cary J, Guiles, R. D

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The Origin of Differences in the Physical Properties of the Equilibrium Forms of Cytochrome b5 Revealed through High-Resolution NMR Structures and Backbone Dynamic Analyses by DANGI, Bindi, SARMA, Siddhartha, YAN, Chunhua, BANVILLE, Debra L., GUILES, R. D.

“…On the basis of a comparison of high-resolution solution structures calculated for both equilibrium forms of rat ferrocytochrome b5, differences in reduction…”
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Structure of the manganese complex of photosystem II upon removal of the 33-kilodalton extrinsic protein: an x-ray absorption spectroscopy study by Cole, James L, Yachandra, Vittal K, McDermott, Ann E, Guiles, R. D, Britt, R. D, Dexheimer, S. L, Sauer, Kenneth, Klein, Melvin P

“…The structure of the Mn complex of photosystem II (PSII) was studied by X-ray absorption spectroscopy. Oxygen-evolving spinach PSII membranes containing 4-5…”
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Low-potential iron-sulfur centers in photosystem I: an x-ray absorption spectroscopy study by McDermott, Ann E, Yachandra, Vittal K, Guiles, R. D, Britt, R. D, Dexheimer, S. L, Sauer, Kenneth, Klein, Melvin P

“…We have measured the X-ray absorption spectra of Fe in photosystem I (PS I) preparations from spinach and a thermophilic cyanobacterium, Synechococcus sp., to…”
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Characterization of the manganese oxygen-evolving complex and the iron-quinone acceptor complex in photosystem II from a thermophilic cyanobacterium by electron paramagnetic resonance and x-ray absorption spectroscopy by McDermott, Ann E, Yachandra, Vittal K, Guiles, R. D, Cole, James L, Dexheimer, S. L, Britt, R. D, Sauer, Kenneth, Klein, Melvin P

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The Origin of Differences in the Physical Properties of the Equilibrium Forms of Cytochrome b 5 Revealed through High-Resolution NMR Structures and Backbone Dynamic Analyses by Dangi, Bindi, Sarma, Siddhartha, Yan, Chunhua, Banville, Debra L, Guiles, R. D

“…On the basis of a comparison of high-resolution solution structures calculated for both equilibrium forms of rat ferrocytochrome b 5, differences in reduction…”
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Comparison of the structure of the manganese complex in the S1 and S2 states of the photosynthetic oxygen-evolving complex: an x-ray absorption spectroscopy study by Yachandra, Vittal K, Guiles, R. D, McDermott, Ann E, Cole, James L, Britt, R. David, Dexheimer, S. L, Sauer, Kenneth, Klein, Melvin P

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Contribution of Backbone Dynamics to Entropy Changes Occurring on Oxidation of Cytochrome b 5. Can Redox Linked Changes in Hydrogen Bond Networks Modulate Reduction Potentials? by Dangi, Bindi, Blankman, Jeffrey I, Miller, Cary J, Volkman, Brian F, Guiles, R. D

“…Changes in backbone dynamics occurring upon oxidation of rat cytochrome b 5 have been examined through model free analyses of 15N-relaxation rates of both…”
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Effect of Axial Ligand Plane Reorientation on Electronic and Electrochemical Properties Observed in the A67V Mutant of Rat Cytochrome b 5 by Sarma, Siddhartha, DiGate, Russell J, Goodin, David B, Miller, Cary J, Guiles, R. D

“…Mutational studies directed at evaluating the effect of the axial ligand plane orientation on electrochemical properties of cytochrome b 5 have been performed…”
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