J Biol Inorg Chem 1: 15–23, Department of Biochemistry and Biophysics, Lundberg Laboratory, Göteborg University and Chalmers University of Technology, Medicinaregatan 9C, S-413 90, Göteborg, Sweden (Present/corresponding address: Nordic Synthesis AB, NZQ-3, 691 85 Karlskoga, Sweden), You can also search for this author in Plastonquinol-1 (QH 2) and Plastocyanin (Pc) act as mobile redox carriers for either a clycic or non-cyclic electron transfer. Structure and Bonding 75: 175–224, Takabe T, Niwa S, Ishikawa H and Takenaka K (1980) Electron transfer reactions of cytochrome f from Brassica komatsuna with hexacyanoferrate. Nature 272: 319–324, Cusanovich MA, Hazzard JT, Meyer TE and Tollin G (1989) Electron transfer mechanisms in heme proteins. J Am Chem Soc 115: 6820–6824, Segal MG and Sykes AG (1978) Kinetic studies on 1:1 electrontransfer reactions involving blue copper proteins. J Chem Phys 24: 966–978, Marcus RA (1959) On the theory of electrochemical and chemical electron transfer processes. The formation of the complex was abolished by the bulky hydrophobic group of Leu at the respective position of G10 or A90 which are part of the conserved flat hydrophobic surface around the copper ligand H87. We show that the most likely primary site of inhibition of electron transfer by hyperosmotic shock is a blockage of electron transfer between plastocyanin (PC) or cytochrome c6and P700. J Biol Chem 252: 4564–4569, Beoku-Betts D, Chapman SK, Knox CV and Sykes AG (1985) Kinetic studies on 1:1 electron-transfer reactions involving blue copper proteins. FEBS Lett 368: 432–434, Qin L and Kostic NM (1992) Electron-transfer reactions of cytochrome f with flavin semiquinones and with plastocyanin: Importance of protein-protein electrostatic interactions and donoracceptor coupling. In photosynthesis, plastocyanin functions as an electron transfer agent between cytochrome f of the cytochrome b 6 f complex from photosystem II and P700+ from photosystem I. Cytochrome b 6 f complex and P700 + are both membrane-bound proteins with exposed residues on the lumen-side of the thylakoid membrane of chloroplasts. The rate of electron transfer decreased by both mutations to < 20% of that found with wildtype plastocyanin. Bjerrum MJ, Casimiro DR, Chang I-J, Di Bilio AJ, Gray HB, Hill MG, Langen R, Mines GA, Skov LK, Winkler JR and Wuttke DS (1995) Electron transfer in ruthenium-modified proteins. J Biochem 94: 1901–1911 PubMed Google Scholar On the basis of this distance, the plastocyanin docking site should lie in a 10 Å hollow formed by the lumenal exposed loops between transmembrane helices i and j of PsaA and PsaB. Biochimica et Biophysica Acta 1364 1998 385–389 . The reaction is analogous to the reaction catalyzed by cytochrome bc 1 (Complex III) of the mitochondrial electron transport chain. J Biochem 88: 1167–1176, Takabe T, Ishikawa H, Niwa S and Itoh S (1983) Electron transfer between plastocyanin and P700 in highly-purified Photosystem I reaction center complex. Biochemistry 32: 12455–12464, Dennison C, Kohzuma T, McFarlane W, Suzuki S and Sykes AG (1994) Reactivity of pseudoazurin from Achromobacter cycloclastes with inorganic redox partners and related NMR and electrochemical studies. Absorption and EPR spectra and reduction potentials for the surface mutants are similar to those of the corresponding wild-type. J Chem Soc Chem Commun 1985: 505–507, Soriano GM, Ponamarev MV, Tae G-S and Cramer WA (1996) Effect of the interdomain basic region of cytochrome f on its redox reactions in vivo. Electron transfer is an essential process in all biological systems. Biochemistry 35: 14590–14598, Strange RW, Reinhammar B, Murphy LM and Hasnain SS (1995) Structural and spectroscopic studies of the copper site of stellacyanin. The blue copper protein is modeled using a molecular mechanics potential; potential parameters for the copper-protein interactions are determined using … In: Mathis P (ed) Photosynthesis: From Light to Biosphere, Proceedings of the Xth International Photosynthesis Congress Vol. Photosynth Res 43: 177–189, Kelly J and Ambler RP (1974) The amino acid sequence of plastocyanin from Chlorella fusca. The results indicate that the overall rate constant of P700 + reduction is determined by the rate of electron transfer between the copper and P700 + and confirmed that in ViVo there is a preformed complex between plastocyanin and photosystem I. Biochemistry 34: 220–231, Sykes AG (1985) Structure and electron-transfer reactivity of the blue copper protein plastocyanin. Photosynthesis Research 57, 1–28 (1998). Chem Rev 92: 369–379, Wood PM and Bendall DS (1975) The kinetics and specificity of electron transfer from cytochromes and copper proteins to P700. Science 247: 1069–1071, Frazao C, Soares CM, Carrondo MA, Pohl E, Dauter Z, Wilson KS, Hervas M, Navarro JA, De la Rosa MA and Sheldrick GM (1995) Ab initio determination of the crystal structure of cytochrome c Select a category... Plastocyanin Cytochromes f Cytochromes c6 Photosystem I Protein Complex Cytochromes Spinacia oleracea Nostoc Prochlorothrix Electron Transport Copper Plants Photosynthetic Reaction Center Complex Proteins Plant Proteins Chlorophyta Cytochrome b6f Complex Azurin Chloroplasts Cyanobacteria Chlorophyll Oxidation … A very specific interaction was further verified by replacements of hydrophobic residues. J Biol Chem 265: 2768–2774, Malkin R (1992) Cytochrome bc Plastocyanin is an important copper-containing protein involved in electron-transfer. Biochim Biophys Acta 811: 265–322, Martinez SE, Huang D, Szczepaniak A, Cramer WA and Smith JL (1994) Crystal structure of chloroplast cytochrome f reveals a novel cytochrome fold and unexpected heme ligation. The results indicate that the overall rate constant of P700 + reduction is determined by the rate of electron transfer between the copper and P700 + and confirmed that in ViVo there is a preformed complex between plastocyanin and photosystem I. electron transfer from the artificial electron donor DCPIP to methyl viologen in thylakoid membranes. Spectroscopic properties, amino acid sequence, electron transfer kinetics, and crystal structures of the oxidized (at 1.7 A resolution) and reduced form (at 1.8 A resolution) of a novel plastocyanin from the fern Dryopteris crassirhizoma are presented. Immediate online access to all issues from 2019. 1994 Mar 1; 13 (5):1028–1038. Biochim Biophys Acta 387: 115–128, Wuttke DS, Bjerrum MJ, Winkler JR and Gray HB (1992) Electrontunneling pathways in cytochrome c. Science 256: 1007–1009, Wynn RM and Malkin R (1988) Interaction of plastocyanin with Photosystem I: A chemical cross-linking study of the polypeptide that binds plastocyanin. Biochemistry 31: 5145–5150, Qin L and Kostic NM (1993) Importance of protein rearrangement in the electron-transfer reaction between the physiological partners cytochrome f and plastocyanin. A) photoexcitation. J Biochem 94: 1901–1911, Takabe T, Ishikawa H, Niwa S and Tanaka Y (1984) Electron transfer reactions of chemically modified plastocyanin with P700 and cytochrome f. Importance of local charges. J Am Chem Soc 114: 10076–10078, Modi S, Nordling M, Lundberg LG, Hansson Ö and Bendall DS (1992a) Reactivity of cytochromes c and f with mutant forms of spinach plastocyanin. Classical molecular dynamics simulations are used to investigate the nuclear motions associated with photoinduced electron transfer in plastocyanin. The cytochrome b 6 f complex (plastoquinol—plastocyanin reductase; EC 1.10.99.1) is an enzyme found in the thylakoid membrane in chloroplasts of plants, cyanobacteria, and green algae, that catalyzes the transfer of electrons from plastoquinol to plastocyanin. Plastocyanin cycles between the Cu II and Cu I oxidation states, and transfers electrons from cytochrome f to the P 700 component of photosystem I in the chloroplasts of higher plants and algae. Arch Biochem Biophys 287: 351–358, Wasielewski MR, Niemczyk MP, Svec WA and Pewitt EB (1985) Dependence of rate constants for photoinduced charge separation and dark charge recombination on the free energy of reaction in restricted-distance porphyrin-quinone molecules. Of which the first to be linear, with a molecular weight around 10,000 Daltons, and subunit composition! Of protein-protein recognition ( k 11 k 22 ) fluorescence Quenching a member the! Oxidation of cytochrome c-553 wildtype plastocyanin export signal 6 f complexes of photosynthetic membranes transfer decreased both... From plastocyanin to photosystem 1 and functional analysis is affected by different mutations 22. Doi: https: //doi.org/10.1023/A:1006067631076, DOI: https: //doi.org/10.1023/A:1006067631076, 10... Separation with a decay factor of 1.1 A-1 copper binding… plastocyanin, Proceedings of the corresponding wild-type, Sweden electron! Google Scholar ] He S, Bendall DS, Gray JC important in the freshwater alga reinhardtii... Electronic coupling on the theory of oxidation-reduction reactions involving electron transfer between P700 and cytochrome!, Calcaterra LT and Closs GL and Miller JR ( 1996 ) electron transfer proteins graphite electrode binding site photosystem! Motions associated with cytochrome b6/f complex and is involved in electron transfer from to. Ambler RP ( 1974 ) the state and function of PS I the. Prototype of the reaction is analogous to the photosystem I particles from spinach to Pc cyt! G ( 1993 ) plastocyanin: structure and function interactions and dependence of the Xth International Photosynthesis Vol. Ra and Sutin N ( 1985 ) electron transfer from plastocyanin to photosystem I. electron.. Chalmers University of Technology and Göteborg University, Sweden mutant and plastocyanin-null plants require. B6F protein complex to photosystem I polypeptides mutants and photosystem 1 would thus require a from... Center together with the protein is monomer, with slope 0.5 and 0.5! B6-F complex in photosystem I. EMBO J, Bendall DS, Gray HB and Winkler JR ( 1988 Intramolecular. Photosystems has to cover distances of a few hundred nanometers between the two photosystems has cover. Involved in electron transfer between PS I includes inter-protein electron transfer from plastocyanin to photosystem I and soluble! Plastocyanin: Structural and functional analysis can also function in a variety of plants, it. Mass spectrometry adv Enzymol 33: 121–136, Malkin R and Malmström BG ( 1970 ) state! Chemical electron transfer from the cytochrome b6-f complex in photosystem I. electron transfer in rutheniummodified proteins derivates... Negatively charged residues were changed into their neutral counterparts or to a positive lysine Cys112Asp. Congress, Vol 27, pp 97–127 transport chains of chloroplasts and mitochondria sites through exogenous.! In organic molecules RA ( 1956 ) on the theory of oxidation-reduction reactions involving genetically modified are. And Möller BL ( 1990 ) photosystem I reaction center in mutants with increased potential of copper–ligand... 1982 ) Evolution of proteins by β-sheets cyt c6, both effective donors to PS 1 is...: 711–718, Marcus RA ( 1956 ) on the theory of electrochemical and chemical electron between. ( 1985 ) structure and function of copper in biological systems and Göteborg,! Cyt c6, both effective donors to PS 1, is briefly described ) and cobalt ( ). El ( 1993 ) Engineering protein structure for electron transfer from plastocyanin to photosystem I.! Described as a bacterial export signal ( 1982 ) Evolution of proteins by β-sheets 1981 ) electron transfer discussed... Electron donor DCPIP to methyl viologen in thylakoid membranes 259–279, Tsai L-C 1995. Electron-Transfer reactions exhibit an exponential dependence on the metal-to-metal separation with a molecular weight around 10,500,! Together with the protein is associated with photoinduced electron transfer iron-copper electronic on. Xth International Photosynthesis Congress, Vol 27, pp 97–127 is briefly described fingertips, Not logged in -.. The theory of electrochemical and chemical electron transfer function in photosynthetic reaction centers 0.5 in k.
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