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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
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Disease relevance of Photophosphorylation


High impact information on Photophosphorylation

  • We conclude that deglycosylated CF1 was unaffected in its ability to bind to the membrane sector of the chloroplast proton-pumping ATPase (CF0) but was altered in some property essential for photophosphorylation but not ATPase activity [6].
  • The quantum efficiency of photosynthetic energy conversion was investigated in isolated spinach chloroplasts by measurements of the quantum requirements of ATP formation by cyclic and noncyclic photophosphorylation catalyzed by ferredoxin [7].
  • When cyclic and noncyclic photophosphorylation were operating concurrently at 554 nm, a total of about 12 quanta was required to generate the two NADPH and three ATP needed for the assimilation of one CO2 to the level of glucose [7].
  • An enrichment for potential photophosphorylation mutants was performed on medium containing arsenate, and acetate-requiring auxotrophs were then identified by replica plating [8].
  • In vitro, phenazine methosulfate-dependent photophosphorylation assays revealed that wild-type CF1 exhibits a 2-fold stimulation in the presence of 25 mM DTT, whereas each of the mutant enzymes has activities that are DTT-independent [9].

Biological context of Photophosphorylation


Anatomical context of Photophosphorylation


Associations of Photophosphorylation with chemical compounds


Gene context of Photophosphorylation

  • Two types of kinetic regulation of the activated ATPase in the chloroplast photophosphorylation system [21].
  • N-(1-Anilinonaphthyl-4)maleimide (ANM) has been used to modify coupling factor 1 (CF1), the terminal coupling factor of photophosphorylation in chloroplasts [22].
  • If the rate of photophosphorylation is partially restricted with the covalent H+-translocating ATP synthase inhibitor dicyclohexylcarbodi-imide, the titre of uncoupler necessary to effect complete inhibition of photophosphorylation is also decreased relative to that in which the covalent H+-ATP synthase inhibitor is absent [23].
  • The formation of [beta-32P]ADP during net photophosphorylation is attributable to adenylate kinase action on the [32P]ATP formed since hexokinase and glucose effectively block its production [24].
  • Low levels of G6PDH and IDH activities in Het(-) Fix(-) mutant strain further confirmed the lack of heterocyst differentiation and nitrogenase activity in the Het(-) Fix(-) mutant strain.NR, NiR, and GS activities in both the strains were energy-dependent and the energy required is mainly derived from photophosphorylation [25].


  1. The stimulation of photophosphorylation and ATPase by artificial redox mediators in chromatophores of Rhodopseudomonas capsulata at different redox potentials. Baccarini-Melandri, A., Melandri, B.A., Hauska, G. J. Bioenerg. Biomembr. (1979) [Pubmed]
  2. Cross-reconstitution of the F0F1-ATP synthases of chloroplasts and Escherichia coli with special emphasis on subunit delta. Engelbrecht, S., Deckers-Hebestreit, G., Altendorf, K., Junge, W. Eur. J. Biochem. (1989) [Pubmed]
  3. Acute toxicity of (chloro-)catechols and (chloro-)catechol-copper combinations in Escherichia coli corresponds to their membrane toxicity in vitro. Schweigert, N., Hunziker, R.W., Escher, B.I., Eggen, R.I. Environ. Toxicol. Chem. (2001) [Pubmed]
  4. Cytochrome b and photosynthetic sulfur bacteria. Knaff, D.B., Buchanan, B.B. Biochim. Biophys. Acta (1975) [Pubmed]
  5. Photoinactivation of photophosphorylation and dark ATPase in Rhodospirillum rubrum chromatophores. Slooten, L., Sybesma, C. Biochim. Biophys. Acta (1976) [Pubmed]
  6. Partial deglycosylation of chloroplast coupling factor 1 (CF1) prevents the reconstitution of photophosphorylation. Maione, T.E., Jagendorf, A.T. Proc. Natl. Acad. Sci. U.S.A. (1984) [Pubmed]
  7. Quantum efficiency of photosynthetic energy conversion. Chain, R.K., Arnon, D.I. Proc. Natl. Acad. Sci. U.S.A. (1977) [Pubmed]
  8. Isolation and characterization of a Chlamydomonas reinhardtii mutant lacking the gamma-subunit of chloroplast coupling factor 1 (CF1). Smart, E.J., Selman, B.R. Mol. Cell. Biol. (1991) [Pubmed]
  9. Role of the Chlamydomonas reinhardtii coupling factor 1 gamma-subunit cysteine bridge in the regulation of ATP synthase. Ross, S.A., Zhang, M.X., Selman, B.R. J. Biol. Chem. (1995) [Pubmed]
  10. The synthesis of enzyme-bound ATP by soluble chloroplast coupling factor 1. Feldman, R.I., Sigman, D.S. J. Biol. Chem. (1982) [Pubmed]
  11. Quercetin, an energy transfer inhibitor in photophosphorylation. Mukohata, Y., Nakabayashi, S., Higashida, M. FEBS Lett. (1978) [Pubmed]
  12. Effect of pyridine homologues on proton flux through the CF0 . CF1 complex and photophosphorylation in chloroplasts. Ho, Y.K., Wang, J.H. J. Bioenerg. Biomembr. (1982) [Pubmed]
  13. Initial events of light-dependent ATP synthesis in spinach subchloroplast particles. Beyeler, W., Bachofen, R. Eur. J. Biochem. (1978) [Pubmed]
  14. Inhibition of photophosphorylation by ATP and the role of magnesium in photophosphorylation. Komatsu, M., Murakami, S. Biochim. Biophys. Acta (1976) [Pubmed]
  15. Regulation of ferredoxin-catalyzed photosynthetic phosphorylations. Arnon, D.I., Chain, R.K. Proc. Natl. Acad. Sci. U.S.A. (1975) [Pubmed]
  16. Role of the gamma subunit of chloroplast coupling factor 1 in the light-dependent activation of photophosphorylation and ATPase activity by dithiothreitol. Ketcham, S.R., Davenport, J.W., Warncke, K., McCarty, R.E. J. Biol. Chem. (1984) [Pubmed]
  17. The effect of permeant buffers on initial ATP synthesis by chloroplasts using rapid mix-quench techniques. Horner, R.D., Moudrianakis, E.N. J. Biol. Chem. (1983) [Pubmed]
  18. Reversible uncoupling of photophosphorylation by a new bifunctional maleimide. Moroney, J.V., McCarty, R.E. J. Biol. Chem. (1979) [Pubmed]
  19. Partial resolution of the enzymes catalyzing photophosphorylation. XV. Approaches to the active site of coupling factor I. Deters, D.W., Racker, E., Nelson, N., Nelson, H. J. Biol. Chem. (1975) [Pubmed]
  20. Influence of adenine nucleotides on the inhibition of photophosphorylation in spinach chloroplasts by N-ethylmaleimide. Magnusson, R.P., McCarty, R.E. J. Biol. Chem. (1975) [Pubmed]
  21. Two types of kinetic regulation of the activated ATPase in the chloroplast photophosphorylation system. Sherman, P.A., Wimmer, M.J. J. Biol. Chem. (1982) [Pubmed]
  22. Selective modification of coupling factor 1 in spinach chloroplast thylakoids by a fluorescent maleimide. Nalin, C.M., Béliveau, R., McCarty, R.E. J. Biol. Chem. (1983) [Pubmed]
  23. Uncouplers can shuttle between localized energy-coupling sites during photophosphorylation by chromatophores of Rhodopseudomonas capsulata N22. Hitchens, G.D., Kell, D.B. Biochem. J. (1983) [Pubmed]
  24. Enzymatic activities in thylakoid membranes, which form medium [32P]NDP and [32P]ATP from 32Pi. Polynucleotide phosphorylase and adenylate kinase. Feldman, R.I., Sigman, D.S. Eur. J. Biochem. (1984) [Pubmed]
  25. Physiological alterations and regulation of heterocyst and nitrogenase formation in Het(-) Fix(-) mutant strain of Anabaena variabilis. Singh, B., Chauhan, V.S., Singh, S., Bisen, P.S. Curr. Microbiol. (2002) [Pubmed]
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