Kinetics and Properties of Cytochrome C Photooxidase of Spinach1
نویسنده
چکیده
4. CRANE, F. L., LESTER, R. L., WIDMER, C. and HATEFI, Y. Studies on the electron transport system XVIII. Isolation of coenzyme Q from beef heart and beef heart mitochondria. Biochim. Biophys. Acta 32: 73-79. 1959. 5. CRANE, F. L., WIDMER, C., LESTER, R. L. and HATEFI, Y. Studies on the electron transport system XV. Coenzyme Q (Q275) and the succinoxidase activity of the electron transport particle. Biochim. Biophys. Acta 31: 476-489. 1959. 6. KOFLER, M. Ueber ein pflanzliches Chinon. In: Festschrift Emil Christoph Barell P. 199. Hoffmann-LaRoche and Co., Basel 1946. 7. LESTER, R. L. and CRANE, F. L. Studies on the electron transport system XIX. The isolation of coenzyme Q from Azotobacter Uinelandii and Torula ittilis. Biochim. Biophys. Acta 32: 492-498. 1959. &. LESTER, R. L., CRANE, F. L. and HATEFI, Y. Coenzyme Q: A new group of quinones, Jour. Amer. Chem. Soc. 80: 4751. 1958. 9. LESTER, R. L., HATEFI, Y., WIDMER, C. and CRANE, F. L. Studies on the electron transport system. XV. Chemical and physical properties of the coenzyme Q family of compounds. Biochim. Biophys. Acta 33: 169-185. 1959. 10. LESTER, R. L. and RAMASARMA, T. Chromatography of the coenzyme Q family of compounds on silicone impregnated paper. Jour. Biol. Chem. 234: 672676. 1959. 11. MORTON, R. A. Ubiquinone. Nature 182: 17641767. 1958. 12. QUAIFE, M. L. and HARRIS, P. L. The chemical estimation of tocopherols in blood plasma. Jour. Biol. Chem. 156: 499-505. 1944. 13. WEBER, F. GLOOR, U. and Wiss, 0. Die reaktivierung der Bernsteinsaure-cytochrom-c Reduktase durch Vitamin K,, 2-methyl-1,4-naphthochinon und Ubichinon. Helv. Chim. Acta 41: 1046-1052. 1958. 14. WOLF, D. E., HOFFMAN, C. H., TRENNER, N. R., ARISON, B. H., SHUNK, C. H., LINN, B. O., McPHERSON, J. F. and FOLKERS, K. Coenzyme Q I. Structure studies on the coenzyme Q group. Jour. Amer. Chem. Soc. 80: 4752-4753. 1958.
منابع مشابه
Photoreduction and Photooxidation of Cytochrome c by Spinach Chloroplast Preparations.
The photoreduction of cytochrome c by spinach chloroplasts has been noted by several investigators (12, 20, 25). In a preliminary report, we have presented evidence that aqueous digitonin extracts of spinach chloroplasts contain a cytochrome c photooxidase (22) which appears to be similar to the photooxidase present in extracts of photosynthetic bacteria studied by Kamen and Vernon (13, 14, 32)...
متن کاملPhotoreduction and Photooxidation of Cytochrome C by Spinach Chloroplast
The photoreduction of cytochrome c by spinach chloroplasts has been noted by several investigators (12, 20, 25). In a preliminary report, we have presented evidence that aqueous digitonin extracts of spinach chloroplasts contain a cytochrome c photooxidase (22) which appears to be similar to the photooxidase present in extracts of photosynthetic bacteria studied by Kamen and Vernon (13, 14, 32)...
متن کاملActivation of Germination in Douglas Fir Seed by Hydrogen Peroxide.
The stimulation of the photooxidase by ammonium sulfate and potassium phosphate was examined in some detail. Maximum stimulation was as much as 10-fold in 1.3 to 1.5 M (NH4)9SO4 in the presence of 0.3 mM KCN. Part of this stimulatory effect was due to the cyanide. Phosphate and citrate also stimulated strongly, and salts of monovalent anions had smaller effects. Many typical inhibitors of photo...
متن کاملReactions of Rhodospirillum rubum extract with cytochrome c and cytochrome c2.
Observations from a number of different experimental approaches have implicated cytochrome pigments in oxidation-reduction reactions resulting from the illumination of photosynthetic tissues (l-6). Possible relationships of these cytochromes to those of the respiratory chain pigments which react with oxygen in the dark have been considered. Vernon (7) isolated a soluble cytochrome in good yield...
متن کاملThe Kinetics of Enzyme Mixtures
Even purified enzyme preparations are often heterogeneous. For example, preparations of aspartate aminotransferase or cytochrome oxidase can consist of several different forms of the enzyme. For this reason we consider how different the kinetics of the reactions catalysed by a mixture of forms of an enzyme must be to provide some indication of the characteristics of the species present. Based...
متن کامل