Search Results - "O'Leary, M.H"

Reaction of phosphoenolpyruvate carboxylase with (Z)-3-bromophosphoenolpyruvate and (Z)-3-fluorophosphoenolpyruvate by Diaz, Emilio, O'Laughlin, Janet T, O'Leary, Marion H

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Carbon isotopes in photosynthesis by O'Leary, M.H

“…One of the most useful techniques for investigating the efficiency of carbon dioxide uptake, the fractionation of carbon isotopes that occurs during plant…”
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Diffusional contribution to carbon isotope fractionation during dark CO2 [carbon dioxide] fixation in CAM [Crassulacean acid metabolism] plants [Kalanchoe daigremontiana, Bryophyllum tubiflorum] by O'Leary, M.H, Osmond, C.B

“…A mathematical model is developed which can be used to predict in vivo carbon isotope fractionations associated with carbon fixation in plants in terms of…”
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Effect of varying CO2 [carbon dioxide] partial pressure on photosynthesis and on carbon isotope composition of carbon-4 of malate from the Crassulacean acid metabolism plant Kalanchoe daigremontiana Hamet et Perr by Holtum, J.A.M, O'Leary, M.H, Osmond, C.B

“…Intact leaves of Kalanchoë daigremontiana were exposed to CO2 partial pressures of 100, 300, and 1000 microbars. Malic acid was extracted, purified, and…”
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13C NMR spectroscopy of the vitamin B6 group by Jaworski, R J, O'Leary, M H

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Carbon-13 Isotope Effect Studies of Trypanosoma brucei Ornithine Decarboxylase by Swanson, Todd, Brooks, Harold B, Osterman, Andrei L, O'Leary, Marion H, Phillips, Margaret A

“…Carbon isotope effect studies were undertaken with the wild-type pyridoxal 5‘-phosphate (PLP)-dependent enzyme ornithine decarboxylase (ODC) from Trypanosoma…”
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Spatial and temporal variation in carbon isotope discrimination in prairie graminoids by Mole, S, Joern, A, O'Leary, M.H, Madhavan, S

“…We present the results of a 5-year examination of variation in the stable carbon isotope composition (δ) of three C₃ graminoid species from a Sandhills…”
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Investigation of the enzymatic mechanism of yeast orotidine-5'-monophosphate decarboxylase using sup 13 C kinetic isotope effects by Smiley, J.A., Bell, J.B., Jones, M.E., Paneth, P., O'Leary, M.H.

“…Orotidine-5'-monophosphate decarboxylase (ODCase) from Saccharomyces cerevisiae displays an observed {sup 13}C kinetic isotope effect of 1.0247 {plus minus}…”
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Phosphoenolpyruvate carboxylase: a ubiquitous, highly regulated enzyme in plants by Chollet, R. (University of Nebraska-Lincoln, Lincoln, NE.), Vidal, J, O'Leary, M.H

“…Since plant phosphoenolpyruvate carboxylase (PEPC) was last reviewed in the Annual Review of Plant Physiology over a decade ago (O'Leary 1982), significant…”
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Correction of vitamin E deficiency with fat-soluble versus water-miscible preparations of vitamin E in patients with cystic fibrosis by Nasr, S Z, O'Leary, M H, Hillermeier, C

“…Of 27 patients with cystic fibrosis, 17 had levels of alpha-tocopherol more than 2 SD below the mean. Patients were randomly given either a water-miscible form…”
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Aspartic-acid synthesis in C3 plants by Melzer, E, O'Leary, M.H

“…In a previous study (Melzer and O'Leary, 1987, Plant Physiol. 84, 58-60), we used isotopic methods to show that a substantial fraction of protein-bound…”
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Measurement of the isotope fractionation associated with diffusion of carbon dioxide in aqueous solution by O'Leary, Marion H

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Carbon kinetic isotope effects on the hydration of carbon dioxide and the dehydration of bicarbonate ion by Marlier, John F, O'Leary, Marion H

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In situ localization of NADP-malic enzyme in bundle sheath cells and leaf carbon isotope fractionation in two C4 grasses by Madhavan, S. (University of Nebraska, Lincoln, NE.), Andreo, C.S, Maurino, V.G, O'Leary, M.H

“…Evidence on the subcellular localization of the NADP-dependent malic enzyme in the bundle sheath chloroplasts of some C4 grasses derived using an indirect…”
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Mechanistic studies of phosphoenolpyruvate carboxylase from Zea mays utilizing formate as an alternate substrate for bicarbonate by Janc, James W, Cleland, W. W, O'Leary, Marion H

“…Formate is an alternate substrate for bicarbonate in the reaction with PEP catalyzed by phosphoenolpyruvate carboxylase from Zea mays, producing formyl…”
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Heavy-atom isotope effects on the alkaline hydrolysis and hydrazinolysis of methyl benzoate by O'Leary, Marion H, Marlier, John F

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Solvent dependence of the carbon kinetic isotope effect on the decarboxylation of 4-pyridylacetic acid. A model for enzymatic decarboxylations by Marlier, John F, O'Leary, Marion H

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Isotope effect studies of the pyridoxal 5'-phosphate dependent histidine decarboxylase from Morganella morganii by Abell, Lynn M, O'Leary, Marion H

“…The pyridoxal 5'-phosphate dependent histidine decarboxylase from Morganella morganii shows a nitrogen isotope effect k14/k15 = 0.9770 +/- 0.0021, a carbon…”
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Anapleurotic CO2 fixation by phosphoenolpyruvate carboxylase in C3 plants by MELZER, E, O'LEARY, M. H

“…The role of phosphoenolpyruvate carboxylase in photosynthesis in the C3 plant Nicotiana tabacum has been probed by measurement of the 13C content of various…”
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Regulation of malic-acid metabolism in Crassulacean-acid-metabolism plants in the dark and light: In-vivo evidence from 13 C-labeling patterns after 13 CO 2 fixation by Osmond, C.B., Holtum, J.A.M., O'Leary, M.H., Roeske, C., Wong, O.C., Summons, R.E., Avadhani, P.N.

“…The labeling patterns in malic acid from dark 13CO2 fixation in seven species of succulent plants with Crassulacean acid metabolism were analysed by gas…”
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