Search Results - "Haddy, Alice"

EPR spectroscopy of the manganese cluster of photosystem II by Haddy, Alice

“…Electron paramagnetic resonance (EPR) spectroscopy is a valuable tool for understanding the oxidation state and chemical environment of the Mn₄Ca cluster of…”
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An enzyme kinetics study of the pH dependence of chloride activation of oxygen evolution in photosystem II by Baranov, Sergei, Haddy, Alice

“…Oxygen evolution by photosystem II (PSII) involves activation by Cl − ion, which is regulated by extrinsic subunits PsbQ and PsbP. In this study, the kinetics…”
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An Alternative Method for Calcium Depletion of the Oxygen Evolving Complex of Photosystem II As Revealed by the Dark-Stable Multiline EPR Signal by Haddy, Alice, Ore, Brandon M

“…The dark-stable multiline EPR signal of photosystem II (PSII) is associated with a slow-decaying S2 state that is due to Ca2+ loss from the oxygen evolving…”
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Converting a Maltose Receptor into a Nascent Binuclear Copper Oxygenase by Computational Design by Benson, David E, Haddy, Alice E, Hellinga, Homme W

“…Computational protein design methods were used to identify mutations that are predicted to introduce a binuclear copper center coordinated by six histidines,…”
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Characteristics of Iodide Activation and Inhibition of Oxygen Evolution by Photosystem II by Bryson, David I, Doctor, Ninad, Johnson, Rachelle, Baranov, Sergei, Haddy, Alice

“…Oxygen evolution by photosystem II (PSII) is activated by chloride and other monovalent anions. In this study, the effects of iodide on oxygen evolution…”
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Exploring the interdependence of calcium and chloride activation of O2 evolution in photosystem II by Haddy, Alice, Beravolu, Shilpa, Johnston, Jeremiah, Kern, Hannah, McDaniel, Monica, Ore, Brandon, Reed, Rachel, Tai, Henry

“…Calcium and chloride are activators of oxygen evolution in photosystem II (PSII), the light-absorbing water oxidase of higher plants, algae, and cyanobacteria…”
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Regioselective Peroxo-Dependent Heme Alkylation in P450BM3-F87G by Aromatic Aldehydes:  Effects of Alkylation on Catalysis by Raner, Gregory M, Hatchell, James A, Dixon, Montegue U, Joy, Teresa L, Haddy, Alice E, Johnston, Eric R

“…Cytochrome P450BM3-F87G reacts with aromatic aldehydes and hydrogen peroxide to generate covalent heme adducts in a reaction that may involve the formation of…”
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Characterization of fluoride inhibition in photosystem II lacking extrinsic PsbP and PsbQ subunits by Haddy, Alice, Lee, Ia, Shin, Karen, Tai, Henry

“…Photosynthetic oxygen evolution occurs through the oxidation of water at a catalytic Mn4CaO5 cluster in photosystem II and is promoted by chloride, which binds…”
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Electrochemical and Structural Study of the Buried Tryptophan in Azurin: Effects of Hydration and Polarity on the Redox Potential of W48 by Tyson, Kristin, Tangtartharakul, Chanin B., Zeug, Matthias, Findling, Nathan, Haddy, Alice, Hvastkovs, Eli, Choe, Jun-yong, Kim, Judy E., Offenbacher, Adam R.

“…Tryptophan serves as an important redox-active amino acid in mediating electron transfer and mitigating oxidative damage in proteins. We previously showed a…”
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Exploring the interdependence of calcium and chloride activation of O 2 evolution in photosystem II by Haddy, Alice, Beravolu, Shilpa, Johnston, Jeremiah, Kern, Hannah, McDaniel, Monica, Ore, Brandon, Reed, Rachel, Tai, Henry

“…Calcium and chloride are activators of oxygen evolution in photosystem II (PSII), the light-absorbing water oxidase of higher plants, algae, and cyanobacteria…”
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Fluoride inhibition of photosystem II and the effect of removal of the PsbQ subunit by Kuntzleman, Thomas S, Haddy, Alice

“…Photosystem II (PSII), the light-absorbing complex of photosynthesis that evolves oxygen, requires chloride for activation of the oxygen evolving complex…”
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Q-band EPR of the S2 state of photosystem II confirms an S = 5/2 origin of the X-band g = 4.1 signal by Haddy, Alice, Lakshmi, K V, Brudvig, Gary W, Frank, Harry A

“…Disagreement has remained about the spin state origin of the g = 4.1 EPR signal observed at X-band (9 GHz) from the S2 oxidation state of the Mn cluster of…”
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Characteristics of the Dark-Stable Multiline EPR Signal of Ca2+-Depleted Photosystem II by Haddy, Alice, Ore, Brandon M., Kuntzleman, Thomas S.

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Q-Band EPR of the S 2 State of Photosystem II Confirms an S = 5/2 Origin of the X-Band g = 4.1 Signal by Haddy, Alice, Lakshmi, K.V., Brudvig, Gary W., Frank, Harry A.

“…Disagreement has remained about the spin state origin of the g = 4.1 EPR signal observed at X-band (9 GHz) from the S 2 oxidation state of the Mn cluster of…”
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Field dependence of solvent proton and deuteron NMR relaxation rates of the manganese(II) binding site of chloroplast coupling factor 1 by Haddy, Alice E, Sharp, Robert R

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Properties of the manganese(II) binding site in ternary complexes of manganese.cntdot.ADP and manganese.cntdot.ATP with chloroplast coupling factor 1: magnetic field dependence of solvent proton and deuterium NMR relaxation rates by Haddy, Alice E, Frasch, Wayne D, Sharp, Robert R

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Spectroscopic investigations of intermediates in the reaction of cytochrome P450BM3–F87G with surrogate oxygen atom donors by Raner, Gregory M., Thompson, Jonathan I., Haddy, Alice, Tangham, Valary, Bynum, Nicole, Ramachandra Reddy, G., Ballou, David P., Dawson, John H.

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Cooperative binding of manganese(II) to chloroplast coupling factor 1 detected by NMR proton relaxation enhancement by Haddy, Alice E, Frasch, Wayne D, Sharp, Robert R

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Using a Molecular Modeling Program to Calculate Electron Paramagnetic Resonance Hyperfine Couplings in Semiquinone Anion Radicals by Haddy, Alice

“…This paper presents a laboratory exercise in computational chemistry in which molecular orbital theory is used to calculate hyperfine couplings in semiquinone…”
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Q-Band EPR of the S^sub 2^ State of Photosystem II Confirms an S = 5/2 Origin of the X-Band g = 4.1 Signal by Haddy, Alice, Lakshmi, K V, Brudvig, Gary W, Frank, Harry A

“…Disagreement has remained about the spin state origin of the g = 4.1 EPR signal observed at X-band (9 GHz) from the S^sub 2^ oxidation state of the Mn cluster…”
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