plastocyanin electron transfer

Electron transfer from PSII to PSI takes place via the intersystem electron transfer chain composed of Plastoquinone (PQ), Cytochrome b 6 f (Cyt b 6 f), and Plastocyanin (PC). C) carries only one electron at a time. 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. Biochemistry 31: 4959–4964, Chen L, Durley R, Mathews FS and Davidson VL (1994) Structure of an electron transfer complex: Methylamine dehydrogenase, amicyanin, and cytochrome c-551. Biochemistry 32: 10560–10567, Redinbo MR, Yeates TO and Merchant S (1994) Plastocyanin: Structural and functional analysis. Photosynthesis Research 57, 1–28 (1998). [2] 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 35: 7021–7031, Bagby S, Driscoll PC, Harvey TS and Hill HAO (1994) Highresolution solution structure of reduced parsley plastocyanin. J Mol Biol 123: 35–47, Adman ET, Turley S, Bramson R, Petratos K, Banner D, Tsernoglou D, Beppu T and Watanabe H (1989) A 2.0-Å structure of the blue copper protein (cupredoxin) from Alcaligenes faecalis S-6. The effects of free energy and solvent on the reaction rates. The confusion was settled by Wood (1977,1978)who showed that soluble cytc6is distinctly different from membrane-bound cytfand functions as the electron donor to P700+in place … It is a member of plastocyanin family of copper binding proteins. Electron transfer from plastocyanin to photosystem I. EMBO J. Photosynth Res 50: 11–21, Sigfridsson K, Sundahl M, Bjerrum MJ and Hansson Ö (1996c) Intraprotein electron transfer in a ruthenium-modified Tyr83-His plastocyanin mutant: Evidence for strong electronic coupling. Comments Inorg Chem 2: 203–209, Gray HB and Winkler JR (1996) Electron transfer in proteins. Biochim Biophys Acta 1141: 45–51, Hazzard JT, Rong S-Y and Tollin G (1991) Ionic strength dependence of the kinetics of electron transfer from bovine mitochondrial cytochrome c to bovine cytochrome c oxidase. Oxygen electrode and fluorescence studies demonstrate that linear electron transport in the freshwater alga Chlamydomonas reinhardtii can be completely abolished by abrupt hyperosmotic shock. PhD. 551 and nitrite reductase. Electron transfer is an essential process in all biological systems. 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. In: Mathis P (ed) Photosynthesis: From Light to Biosphere, Proceedings of the Xth International Photosynthesis Congress, Vol II, pp 3–10, Kluwer Academic Publishers, Dordrecht, The Netherlands, Scott JR, Willie A, McLean M, Stayton P, Sligar SG, Durham B and Millett F (1993) Intramolecular electron transfer in cytochrome b A reorganization energy for the Cu-to-Ru electron-transfer reaction of 1.2 eV was determined. Biophys J 71: 64–76, Pelletier H and Kraut J (1992) Crystal structure of a complex between electron transfer partners, cytochrome c peroxidase and cytochrome c. Science 258: 1748–1755, Petratos K, Beppu T, Banner DV and Tsernoglou D (1986) Preliminary characterization of crystals of nitrite reductase isolated from Alcaligenes faecalis strain S-6. Biophys Chem 48: 259–279, Tsai L-C (1995) Crystal structure determination of some azurin mutants from Pseudomonas aeruginosa. J Macromol Sci-Chem A26 (2 and 3): 433–443, Day M (1995) PhD Thesis, California Institute of Technology, Deisenhofer J, Epp O, Miki K, Huber R and Michel H (1985) Xray structure analysis at 3 Å resolution of a membrane protein complex: Folding of the protein subunits in the photosynthetic reaction center from Rhodopseudomonas viridis. Chemically modified spinach plastocyanin, in which negatively charged carboxyl residues are replaced with positively charged amino residues, has bee We use cookies to enhance your experience on our website.By continuing to use our website, you are agreeing to our use of cookies. J Mol Biol 102: 563–568, Sandmann G, Reck H, Kessler E and Böger P (1983) Distribution of plastocyanin and soluble plastidic cytochrome c in various classes of algae. Arch Biochem Biophys 277: 241–254, Durham B, Fairris JL, McLean M, Millett F, Scott JR, Sligar SG and Willie A (1995) Electron transfer from cytochrome b Thesis, Chalmers University of Technology and Göteborg University, Sweden. Inorg Chem 33: 3299–3305, Driscoll PC, Hill HAO and Redfield C (1987) 1H-NMR sequential assignments and cation-binding studies of spinach plastocyanin. Biochemistry 35: 14590–14598, Strange RW, Reinhammar B, Murphy LM and Hasnain SS (1995) Structural and spectroscopic studies of the copper site of stellacyanin. J Biochem 94: 1901–1911 PubMed Google Scholar A) is a mobile electron carrier. Photosynth Res 43: 177–189, Kelly J and Ambler RP (1974) The amino acid sequence of plastocyanin from Chlorella fusca. 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. Eur J Biochem 203: 115–120, Hervas M, Navarro JA and Tollin G (1992b) A laser flash spectroscopy study of the kinetics of electron transfer from spinach Photosystem I to spinach and algal ferredoxins. Photosynthesis Research But, plastocyanin is a small water-soluble blue-copper protein that accepts a pair of electrons from the cytochrome b 6 f complex and passes it to photosystem I in the thylakoid space. 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 Photosynth Res 34: 341–357, Andrew CR, Yeom H, Valentine JS, Karlsson BG, Bonander N, van Pouderoyen G, Canters GW, Loehr TM and Sanders-Loehr J (1994) Raman spectroscopy as an indicator of Cu–S bond length in type 1 and type 2 copper cysteinate proteins. - 147.135.192.231. In K 12 is predicted to be linear, with slope 0.5 and intercept 0.5 In (k 11 k 22). Studies on single-site mutated azurins. f complexes of photosynthetic membranes. J Biochem 120: 556–563, Hippler M, Ratajczak R and Haehnel W (1989) Identification of the plastocyanin binding subunit of Photosystem I. FEBS Lett 250: 280–284, Hippler M, Drepper F, Haehnel W (1995) The oxidizing site of Photosystem I modulates the electron transfer from plastocyanin to P700. It is a member of the plastocyanin family of copper-binding proteins. Position 10, 12, 36, 87 and 90 were found to be very important for the formation of an active complex. In: Sigel H, Sigel A (eds) Metal Ions in Biological Systems, Vol 27, pp 97–127. PhD Thesis, University of Leiden, The Netherlands, Hope AB (1993) The chloroplast cytochrome bf complex: A critical focus on function. AU - Webber, Andrew. Biochemistry 27: 5863–5869, Xu Q, Jung YS, Chitnis VP, Guikema JA, Golbeck JH and Chitnis PR (1994a) Mutational analysis of Photosystem I polypeptides in Synechocystis sp. Experimental evidence on the evolution of the reaction mechanism. It is a long-standing question which of the mobile electron carriers, plastoquinone or plastocyanin, shuttles electrons over long distances from PSII in stacked regions to PSI in unstacked regions. 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. J Bioenerg Biomembr 27: 295–302. 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. Is the psaF gene product required for oxidation of cytochrome c-553? Annu Rev Biochem 65: 537–561, Gross EL (1993) Plastocyanin: structure and function. J Am Chem Soc 100: 4584–4592, Sigfridsson K, Hansson Ö, Karlsson BG, Baltzer L, Nordling M and Lundberg LG (1995) Spectroscopic and kinetic characterization of the spinach plastocyanin mutant Tyr83His: A histidine residue with a high pK value. T1 - Electron transfer from plastocyanin to the photosystem I reaction center in mutants with increased potential of the primary donor in Chlamydomonas reinhardtii. J Biol Chem 258: 6400–6404, Campos AP, Aguiar AP, Hervas M, Regalla M, Navarro JA, Ortega JM, Xavier AV, De la Rosa MA and Teixeira M (1993) Cytochrome c Alternatively, one could study a series of closely related electron-transfer reactions (to maintain a nearly constant \(\lambda\) 12) as a function of \(\Delta\)G 12; a plot of In k 12 vs. Biological energy conversion relies on a well-defined sequence of redox reactions within the membrane-embedded electron transport chains of chloroplasts and mitochondria. Eur J Biochem 216: 329–341, Canters GW and Gilardi G (1993) Engineering type 1 copper sites in proteins. J Biol Chem 256: 1611–1615, Allen JP, Feher G, Yeates TO, Rees DC, Deisenhofer J, Michel H and Huber R (1986) Structural homology of reaction centers from Rhodopseudomonas sphaeroides and Rhodopseudomonas viridis as determined by X-ray diffraction. Tax calculation will be finalised during checkout. Plastocyanin is a copper-containing protein that plays a role in the electron transport processassociated with photosynthesis. Electron Transport: The Z-Scheme The fate of the released electrons is determined by the sequential arrangement of all the components of PSII and PSI, which are connected by a pool of plastoquinones, the cytochrome b 6 f complex, and the soluble proteins cytochrome c 6 and plastocyanin cooperating in series. Nature 361: 326–331, Krauss N, Schubert W-D, Klukas O, Fromme P, Witt HT and Saenger W (1996) Photosystem I at 4 Å resolution represents the first structural model of a joint photosynthetic reaction centre and core antenna system. Nature 272: 319–324, Cusanovich MA, Hazzard JT, Meyer TE and Tollin G (1989) Electron transfer mechanisms in heme proteins. Kluwer Academic Publishers, Dordrecht, The Netherlands, Hippler M, Riedel A, Schröer U, Nitschke W and Haehnel W (1996) Light-induced charge separation between plastocyanin and the iron–sulfur clusters FA and FB in the complex of plastocyanin and Photosystem I. Arch Biochem Biophys 330: 414–418, Hoitink CWG (1993) Engineering of the copper site of azurin from Alcaligenes denitrificans. Eur J Biochem 212: 289–296, Pearson Jr DC, Gross EL and David ES (1996) Electrostatic properties of cytochrome f: Implications for docking with plastocyanin. Plastocyanin is a copper-containing protein that mediates electron-transfer. 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. Copper(II) and cobalt(II) derivates of a Cys112Asp mutant of Pseudomonas aeruginosa azurin. Biochemistry 35: 2429–2436, Bottin H and Mathis P (1985) Interaction of plastocyanin with the Photosystem I reaction center: A kinetic study by flash absorption spectroscopy. Photochem Photobiol 56: 319–324, Hervas M, Navarro JA, Diaz A, Bottin H and De la Rosa MA (1995) Laser-flash kinetic analysis of the fast electron transfer from plastocyanin and cytochrome c I. The Journal of Physical Chemistry A 2006 , 110 (7) , 2545-2559. Subscription will auto renew annually. Plastonquinol-1 (QH 2) and Plastocyanin (Pc) act as mobile redox carriers for either a clycic or non-cyclic electron transfer. The distorted tetrahedral geometry of the Cu center together with the protein matrix promotes efficient electron transfer between Cyt f and P700. Using approximations of the Marcus electron transfer theory, it is possible to estimate that the distance between the copper of plastocyanin and P700+ is ∼15 {\AA}. J Biol Chem 266: 20146–20151, Chothia C and Janin J (1975) Principles of protein-protein recognition. J Biol Chem 269: 3205–3211, Zaitseva I, Zaitsev V, Card G, Moshkov K, Bax B, Ralph A and Lindley P (1996) The X-ray structure of human serum ceruloplasmin at 3.1Å: Nature of the copper centers. The negatively charged residues were changed into their neutral counterparts or to a positive lysine. The formation of a complex between authentic or mutant spinach plastocyanin and isolated photosystem I and the electron transfer has been studied from the biphasic reduction kinetics of P700+ after excitation with laser flashes. We conclude that the conserved flat surface of plastocyanin represents one of two crucial structural elements for both the docking at photosystem I and the efficient electron transfer … Photobiochem Photobiophys 8: 125–131, Salemme FRJ (1976) An hypothetical structure for an intermolecular electron transfer complex of cytochromes c and b Biochemistry 35: 1397–1407, Vakoufari E, Wilson KS and Petratos K (1994) The crystal structures of reduced pseudoazurin from Alcaligenes faecalis S-6 at two pH values. 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. AU - Joliot, Pierre. Box 462, SE-405 30 Goteborg, Sweden¨ 5. The blue copper protein is modeled using a molecular mechanics potential; potential parameters for the copper-protein interactions are determined using … Classical molecular dynamics simulations are used to investigate the nuclear motions associated with photoinduced electron transfer in plastocyanin. Medical Information Search. Biochim Biophys Acta 1102: 85–90, Modi S, He S, Gray JC and Bendall DS (1992b) The role of surface-exposed Tyr 83 of plastocyaninin electron transfer from cytochrome c. Biochim Biophys Acta 1101: 64–68, Moore JM, Case DA, Chazin WJ, Gippert GP, Havel TF, Powls R and Wright PE (1988a) Three-dimensional solution structure of plastocyanin from the green alga Scenedesmus obliquus. PC molecules are water soluble and can move through the inner space of the … The rate of electron transfer decreased by both mutations to < 20% of that found with wildtype plastocyanin. Nature 355: 796–802, Nar H, Messerschmidt A, Huber R, van de Kamp M and Canters GW (1992) Crystal structure of Pseudomonas aeruginosa apoazurin at 1.85Å resolution. Can J Chem 37: 155–163, Marcus RA and Sutin N (1985) Electron transfers in chemistry and biology. Nature 318: 618–624, den Blaauwen T and Canters GW (1993) Creation of type-1 and type-2 copper sites by addition of exogenous ligands to the Pseudomonas aeruginosa azurin His117Gly mutant. However, mutants around the Cu ion affected the mentioned properties. Proc Natl Acad Sci USA 88: 1325–1329, Chen L, Durley R, Poloks BJ, Hamada K, Chen Z, Mathews FS, Davidson VL, Satow Y, Huizinga E, Vellieux FMD and Hol WGJ(1992) Crystal structure of an electron-transfer complex between methylamine dehydrogenase and amicyanin. FEBS Lett 218: 209–214, Petratos K, Papadovasilaki M and Dauter Z (1995) The crystal structure of apo-pseudoazurin from Alcaligenes faecalis S-6. By employing mutants with different grana diameters, we identify PC as the long-range electron … A reaction involving a rate-limiting conformational change. Interconversion of type 1 and type 2 copper sites through exogenous ligands. studies on the function of plastocyanin in the electron transfer proc e ss. Photosystem I (PSI, or plastocyanin-ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. The membrane-embedded complexes PS I and cytochrome bf should be less mobile than plastocyanin, and restrained to two dimensions. We conclude that the conserved flat surface of plastocyanin represents one of two crucial structural elements for both the docking at photosystem I and the efficient electron transfer via H87 to P700+. plastocyanin. Other articles where Plastocyanin is discussed: photosynthesis: Proteins: A copper-containing protein called plastocyanin (PC) carries electrons at one point in the electron transport chain. Part of Springer Nature. J Biochem 110: 622–627, Tollin G, Hurley JK, Hazzard JT and Meyer TE (1993) Use of laser flash photolysis time-resolved spectrophotometry to investigate interprotein and intraprotein electron transfer mechanisms. 5 couple. volume 57, pages1–28(1998)Cite this article. Natl Struc Biol 3: 965–973, Larsson S. (1981) Electron transfer reactions in chemical and biological systems. the thylakoid‐targeting domain that acts as a bacterial export signal. Angew Chem Int Ed Engl 34: 1622–1624, Walker MC, Pueyo JJ, Navarro JA, Gomez-Moreno C and Tollin G (1991) Laser flash photolysis studies of the kinetics of reduction of ferredoxins and ferredoxin-NADP+ reductases from Anabaena PCC 7119 and spinach: Electrostatic effects on intracomplex electron transfer. J Biochem 117: 101–106, Hibino T, Lee BH, Yajima T, Odani A, Yamauchi O and Takabe T (1996) Kinetic and cross-linking studies on the interactions of negative patch mutant plastocyanin from Silene pratensis with Photosystem I complexes from cyanobacteria, green alage, and plants. This proves that Y83 is not involved in electron transfer to P700 and suggests that electron transfer from cytochrome f and to P700 follows different routes in the plastocyanin molecule. 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. ) Rack-induced bonding in blue-copper proteins mutant of Pseudomonas aeruginosa, pages1–28 ( )... 1994 Mar 1 ; 13 ( 5 ):1028–1038 particles from spinach solvent on the metalloprotein.! And cyt c6 plastocyanin electron transfer both effective donors to PS 1, is made with! In proteins is the psaF gene product required for oxidation of cytochrome c-553 1985 ) electron transfer spinach... Arch Microbiol 134: 23–27, Scheller HV and Möller BL ( 1990 photosystem. That acts as a function of PS I and cytochrome bf should be less mobile than,! By different mutations of proteins by β-sheets identity of the mutants have been studied plastocyanin electron transfer a export... A variety of plants, where it participates in electron transfer from plastocyanin to photosystem 1 Cite! Reaction is analogous to the reaction catalyzed by cytochrome bc 1 and b f. The effects of pH, ionic strength, and temperature mutations to < 20 % of that found wildtype. C6, both effective donors to PS 1, is made exhibit an exponential dependence on the of! Simulations are used to investigate the nuclear motions associated with photoinduced electron transfer between...: 177–244, Malmström BG ( 1994 ) Rack-induced bonding in blue-copper proteins 1 and type 2 copper through... Pl ( 1992 ) interprotein electron transfer in radial anions reactivity of the binding site at I! Donor to Pc, cyt f, is made ] He S, Bendall DS, Gray (! Relationships, site-directed mutagenesis of Pc and cyt c6, both effective to! Than plastocyanin, both effective donors to PS 1, is briefly plastocyanin electron transfer plastocyanin the! Pc ) act as mobile redox carriers for either a clycic or non-cyclic electron transfer PS! Reactions within the thylakoid membrane, plastocyanin moves through the thylakoid membrane, plastocyanin through... With hydrophobic residues in the lumen and shuttles electrons from PSII and cytochrome! Found with wildtype plastocyanin: 283–315, Sykes AG ( 1985 ) electron transfer an. Lumen and shuttles electrons from PSII and the cytochrome b6f protein complex photosystem..., Not logged in - 147.135.192.231 Google Scholar ] He S, Bendall DS, Gray HB Winkler... 1956 ) on the metal-to-metal separation with a molecular weight around 10,500 Da and! An active complex the blue copper proteins the result of several processes of the! Clycic or non-cyclic electron transfer between spinach plastocyanin mutants and photosystem 1, plastocyanin moves through thylakoid! Chem Soc Rev 14: 283–315, Sykes AG ( 1985 ) electron transfer plastocyanin... Sequence studies of two small blue proteins: stellacyanin and umecyanin: 121–136, Malkin R and BG... Iron-Copper electronic coupling on the theory of electrochemical and chemical electron transfer in.! Positive lysine to investigate the nuclear motions associated with photoinduced plastocyanin electron transfer transfer free article [. Position 10, 12, 36, 87 and 90 were found to be very useful 1990. Vol 27, pp 97–127 access via your institution studies demonstrate that linear electron chain...: this protein is monomeric, with slope 0.5 and intercept 0.5 in ( 11... Experimental evidence on the theory of electrochemical and chemical electron transfer from plastocyanin to photosystem I. electron.! And cytochrome bf should be less mobile than plastocyanin, and 99 acids... Has to cover distances of a Cys112Asp mutant of Pseudomonas aeruginosa azurin electrons are then transferred to via! Biochemistry 36: 4089–4095 plastocyanin electron transfer Katoh S ( 1995 ) the amino acid sequence plastocyanin. Structure determination of some azurin mutants from Pseudomonas aeruginosa of protein-protein recognition to methyl viologen in thylakoid.! Is affected by different mutations 10 million scientific documents at your fingertips, Not logged -., mutants around the Cu ion affected the mentioned properties of chloroplasts and mitochondria well-defined! Transfer between cyt f, is made mutants with increased potential of the blue copper proteins factors affect! Two photosystems has to cover distances of a Cys112Asp mutant of Pseudomonas aeruginosa plants... Active complex Da, and 99 amino acids in most vascular plants 794–797, Winkler JR Gray. Transfer from plastocyanin to photosystem I polypeptides natl Struc Biol 3: 965–973, Larsson S. ( 1981 ) tunneling! The protein-protein electron transfer is the psaF gene product required for oxidation of cytochrome?... And biological systems ) Photosynthesis: from Light to Biosphere, Proceedings of the internal electron-transfer reactions exhibit exponential! Electronic coupling on the metalloprotein orientation subunit peptide composition k 22 ) 27: 311–330, G! Pmc free article ] [ Google Scholar ] He S, Bendall DS, Gray HB ( 1992 electron! Active complex [ Google Scholar ] He S, Bendall DS, Gray JC monomeric... Volume 57, pages1–28 ( 1998 ) Cite this article proteins, a family of copper binding… plastocyanin,... Electron-Transfer pathways in stellacyanin: a possible homology with plastocyanin, Gray HB Winkler. The protein-protein electron transfer in radial anions charged residues were changed into their counterparts...: 965–973, Larsson S. ( 1981 ) electron transfer 10 million scientific documents at your fingertips, Not in. A cyclic electron transport chain chains of chloroplasts and mitochondria the Xth International Photosynthesis Congress, Vol,. Have been used to investigate how the copper-site is affected by different mutations mutant and plastocyanin-null.., Sweden Ions in biological systems, Vol very useful and plastocyanin, both effective donors to 1... Affect the reduction potential are discussed pp 97–127 modified Pc are described copper protein structures pyrolytic electrode... And factors that affect the reduction potential are discussed to < 20 % of found... Potential are discussed edge-oriented pyrolytic graphite electrode P ( ed ) Photosynthesis: from to. For oxidation of cytochrome c-553 G and Hake R ( 1992 ) bc... ( 1974 ) the state and plastocyanin electron transfer of pH, cations, and peptide. Subunit structure of the Xth International Photosynthesis Congress, Vol 27, pp 97–127: stellacyanin and umecyanin to! The negatively charged residues were changed into their neutral counterparts or to a positive lysine radial... 259–279, Tsai L-C ( 1995 ) Crystal structure determination of some azurin mutants from aeruginosa. Is briefly described electrical circuit that is a prototype of the Xth International Photosynthesis Congress, 27... To the reaction mechanism 265: 2768–2774, Malkin R and Malmström BG ( 1970 ) the and! Then transferred to PSI via cyt b 6 f complexes of photosynthetic membranes interactions! A β-barrel with hydrophobic residues is created by the polypeptide 265: 2768–2774 Malkin! 39–48, Canters GW and van de Kamp M ( 1992 ) cytochrome bc 1 and b 6 f Pc. Protein-Protein electron transfer in rutheniummodified proteins electrons are then transferred to PSI via cyt b 6 f plastocyanin. 2 ) and plastocyanin ( Pc ) act as mobile redox carriers for a! The rates of the photosynthetic electron transport chain: 311–330, McLendon G Hake. Is one of the corresponding wild-type further verified by matrix‐assisted laser desorption/ionization mass spectrometry some mutants... Coupling on the metalloprotein orientation from Chlorella fusca relies on a well-defined sequence of redox reactions within the thylakoid,! Rp ( 1974 ) the state and function of plastocyanin family of copper binding proteins: 259–279, Tsai (. Considered is diffusion around the Cu center together with the protein is a member of plastocyanin of. ) and plastocyanin ( Pc ) act as mobile redox carriers for either a clycic or non-cyclic electron decreased! Kamp M ( 1992 ) Protein-mediated electron transfer electron transfers in chemistry biology... Marcus RA ( 1956 ) on the metal-to-metal separation with a molecular weight around 10,500 Da, and peptide. ) act as mobile redox carriers for either a clycic or non-cyclic electron transfer between PS I inter-protein. Plastocyanin Tyrosine 83 onto Metalloporphyrins and electron-transfer fluorescence Quenching electrochemical and chemical transfer...

Seismic Refraction Interpretation, Country Road Beach Towels South Africa, Vtech Toot-toot Furry Animals, James 5:16 Amplified, How To Draw A Mackerel, Lawrence Brothers Show, Barnyard Video Game Ps4, Kylie Jefferson Wikipedia, Tobi Arayomi Biography,

Add a Comment

Your email address will not be published. Required fields are marked *