221 research outputs found
The binding of copper ions to copper-free bovine superoxide dismutase. Copper distribution in protein samples recombined with less than stoicheiometric copper ion/protein ratios
The binding of copper ions to copper-free bovine superoxide dismutase. Kinetic aspects
Pathways of Superoxide (O2-) decay in the Eastern Tropical North Atlantic
Superoxide (O2-: IUPAC name dioxide (•1−)) is an important transient reactive oxygen species (ROS) in the ocean formed as an intermediate in the redox transformation of oxygen (O2) into hydrogen peroxide (H2O2) and vice versa. This highly reactive and very short-lived radical anion can be produced both via photochemical and biological processes in the ocean. In this paper we examine the decomposition rate of O2- throughout the water column, using new data collected in the Eastern Tropical North Atlantic (ETNA) Ocean. For this approach we applied a semi factorial experimental design, to identify and quantify the pathways of the major identified sinks in the ocean. In this work we occupied 6 stations, 2 on the West African continental shelf and 4 open ocean stations, including the CVOO time series site adjacent to Cape Verde. Our results indicate that in the surface ocean, impacted by Saharan aerosols and sediment resuspension, the main decay pathways for superoxide is via reactions with Mn(II) and organic matter
Chemometric Analysis for Pollution Source Assessment of Harbour Sediments in Arctic Locations
Bluues: a program for the analysis of the electrostatic properties of proteins based on generalized Born radii
19F- nuclear magnetic relaxation by superoxide dismutase as an enzymic method for the detection of superoxide ion
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