Search Results - "Stehlik, Dietmar"
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Evidence for Asymmetric Electron Transfer in Cyanobacterial Photosystem I: Analysis of a Methionine-to-Leucine Mutation of the Ligand to the Primary Electron Acceptor A0
Published in Biochemistry (Easton) (27-04-2004)“…The X-ray crystal structure of photosystem I (PS I) depicts six chlorophyll a molecules (in three pairs), two phylloquinones, and a [4Fe-4S] cluster arranged…”
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Contributions of the Protein Environment to the Midpoint Potentials of the A1 Phylloquinones and the FX Iron−Sulfur Cluster in Photosystem I
Published in Biochemistry (Easton) (25-09-2007)“…Electrostatic calculations have predicted that the partial negative charge associated with D575PsaB plays a significant role in modulating the midpoint…”
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Electrostatic Influence of PsaC Protein Binding to the PsaA/PsaB Heterodimer in Photosystem I
Published in Biophysical journal (01-02-2006)“…The absence of the PsaC subunit in the photosystem I (PSI) complex (native PSI complex) by mutagenesis or chemical manipulation yields a PSI core (P700-FX…”
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Assembly of Protein Subunits within the Stromal Ridge of Photosystem I. Structural Changes between Unbound and Sequentially PS I-bound Polypeptides and Correlated Changes of the Magnetic Properties of the Terminal Iron Sulfur Clusters
Published in Journal of molecular biology (28-03-2003)“…The X-ray structure of Photosystem I (PS I) from Synechococcus elongatus was recently solved at 2.5Å resolution (PDB entry 1JB0). It provides a structural…”
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Intramolecular Energy Transfer in a Covalently Linked Copper(II) Porphyrin−Free Base Porphyrin Dimer: Novel Spin Polarization in the Energy Acceptor
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (26-08-1999)“…The excitation wavelength dependence of time-resolved EPR is used to demonstrate the pathway of intramolecular energy transfer in a covalently linked…”
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Recruitment of a Foreign Quinone into the A1 Site of Photosystem I
Published in The Journal of biological chemistry (01-04-2005)“…In photosystem I (PS I), phylloquinone (PhQ) acts as a low potential electron acceptor during light-induced electron transfer (ET). The origin of the very low…”
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Recruitment of a Foreign Quinone into the A1 Site of Photosystem I
Published in The Journal of biological chemistry (01-04-2005)“…A photosystem I (PS I) complex containing plastoquinone-9 (PQ-9) but devoid of FX, FB, and FA was isolated and characterized from a mutant strain of…”
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Electron Transfer in Cyanobacterial Photosystem I
Published in The Journal of biological chemistry (25-07-2003)“…The Photosystem I (PS I) reaction center contains two branches of nearly symmetric cofactors bound to the PsaA and PsaB heterodimer. From the x-ray crystal…”
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Electron Transfer in Cyanobacterial Photosystem I
Published in The Journal of biological chemistry (25-07-2003)“…The directionality of electron transfer in Photosystem I (PS I) is investigated using site-directed mutations in the phylloquinone (QK) and FX binding regions…”
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Recruitment of a Foreign Quinone into the A1 Site of Photosystem I
Published in The Journal of biological chemistry (26-10-2001)“…Interruption of the phylloquinone (PhQ) biosynthetic pathway by interposon mutagenesis of themenA and menB genes inSynechocystis sp. PCC 6803 results in…”
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Assembly of Photosystem I
Published in The Journal of biological chemistry (07-06-2002)“…The rubA gene was insertionally inactivated in Synechococcus sp. PCC 7002, and the properties of photosystem I complexes were characterized spectroscopically…”
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A Structural Model for the Charge Separated State in Photosystem I from the Orientation of the Magnetic Interaction Tensors
Published in The journal of physical chemistry. B (19-10-2000)“…The charge separated state (P700 = primary electron donor, A1 = phylloquinone electron acceptor) in photosystem I of oxygenic photosynthesis has been…”
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Recruitment of a Foreign Quinone into the A1 Site of Photosystem I
Published in The Journal of biological chemistry (04-08-2000)“…Interruption of the menAor menB gene in Synechocystis sp. PCC 6803 results in the incorporation of a foreign quinone, termed Q, into the A1 site of photosystem…”
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Recruitment of a Foreign Quinone into the A1 Site of Photosystem I
Published in The Journal of biological chemistry (24-03-2000)“…Electron paramagnetic resonance (EPR) and electron-nuclear double resonance studies of the photosystem (PS) I quinone acceptor, A1, in phylloquinone…”
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Low temperature EPR on Photosystem I single crystals: orientation of the iron–sulfur centers FA and FB
Published in Biochimica et biophysica acta. Bioenergetics (01-04-1997)Get full text
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The Radical Pair State in Photosystem I Single Crystals: Orientation Dependence of the Transient Spin-Polarized EPR Spectra
Published in The journal of physical chemistry. B (15-10-1998)“…The light-induced, charge-separated state in single crystals of Photosystem I (PSI) from the cyanobacterium Synechococcus elongatus is investigated with…”
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Paramagnetic 1H NMR spectroscopy of the reduced, unbound photosystem I subunit PsaC: sequence-specific assignment of contact-shifted resonances and identification of mixed- and equal-valence Fe-Fe pairs in [4Fe-4S] centers FA- and FB
Published in Journal of biological inorganic chemistry (01-06-2000)“…The PsaC subunit of Photosystem I (PS I) is a 9.3-kDa protein that binds two important cofactors in photosynthetic electron transfer: the [4Fe-4S] clusters FA…”
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Anisotropic electron spin polarization of correlated spin pairs in photosynthetic reaction centers
Published in Journal of physical chemistry (1952) (01-02-1989)Get full text
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Light Harvesting in Photosystem I: Modeling Based on the 2.5-Å Structure of Photosystem I from Synechococcus elongatus
Published in Biophysical journal (01-07-2002)“…The structure of photosystem I from the thermophilic cyanobacterium Synechococcus elongatus has been recently resolved by x-ray crystallography to 2.5-Å…”
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Decay Kinetics and Quantum Yields of Fluorescence in Photosystem I from Synechococcus elongatus with P700 in the Reduced and Oxidized State: Are the Kinetics of Excited State Decay Trap-Limited or Transfer-Limited?
Published in Biophysical journal (01-08-2000)“…Transfer and trapping of excitation energy in photosystem I (PS I) trimers isolated from Synechococcus elongatus have been studied by an approach combining…”
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