Reduction of methemerythrin in the erythrocytes of Phascolopsis gouldii

Abstract

J. Reduction of Methemerythrin by the Reductase 53 System K. Concentration of Reduced Glutathione in P. qouldii 54 Erythrocytes L. Reduction of Methemerythrin with Glutathione 55 III. RESULTS 57 A. EPR of Intact Erythrocytes 57 B. Reducing Components in the Membrane 64 C. Isolation of Cytochrome b-from P. qouldii 67 Erythrocytes D. Properties of P. qouldii Cytochrome b^ 76 87 E. Isolation of Cytochrome b-from T. zostericola Erythrocytes F. Oxidation of Reduced Cytochrome b^ by MetHr 89 G. Isolation of Cytochrome b^ Reductase H. Catalytic Properties of Cytochrome b^ Reductase I. Reduction ot MetHr by the Reductase System J, Concentration of Reduced Glutathione in P. qouldii Erythrocytes K. Reduction of MetHr by Reduced Glutathione V.

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Phosphorous-31 nuclear magnetic resonance studies of cellular systems

“…Therefore, another possible function for PEA and 2-AEP could be to increase the solubility of the hemerythrin octamer in sipunculan erythrocytes. In this respect, it should be noted that the concentration of hemerythrin within these cells approaches the 10 mM range (Utecht, 1986 From these results we have concluded that a phosphagen shuttle does not exist within the flagellum of mammalian spermatozoa, and that instead ATP is in rapid exchange between a bound state and a free state.…”