Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Parag R. Chitnis"'
Autor:
Wu Xu, Yingchun Wang, Eric Taylor, Amelie Laujac, Liyan Gao, Sergei Savikhin, Parag R Chitnis
Publikováno v:
PLoS ONE, Vol 6, Iss 9, p e24625 (2011)
Photosystem I is the light-driven plastocyanin-ferredoxin oxidoreductase in the photosynthetic electron transfer of cyanobacteria and plants. Two histidyl residues in the symmetric transmembrane helices A-j and B-j provide ligands for the P700 chloro
Externí odkaz:
https://doaj.org/article/85c1ad5df85a404d85b0b937a2d20193
Publikováno v:
Biochemistry. 44:5402-5408
P700, the primary electron donor of photosystem I, is an asymmetric dimer made of one molecule of chlorophyll a' (P(A)) and one of chlorophyll a (P(B)) that are bound to the homologous PsaA and PsaB polypeptides. While the carbonyl groups of P(A) are
Publikováno v:
Biochemistry. 43:8380-8390
P700, the primary electron donor of photosystem I is an asymmetric dimer made of one molecule of chlorophyll a' (P(A)) and one of chlorophyll a (P(B)). While the carbonyl groups of P(A) are involved in hydrogen-bonding interactions with several surro
Autor:
Gaozhong Shen, Stephan G. Zech, Robert Bittl, Parag R. Chitnis, Dietmar Stehlik, Yulia Pushkar, Maciej Krzystyniak, Alfia I. Valieva, Boris Zybailov, Art van der Est, John H. Golbeck, Wu Xu, Christian Teutloff
Publikováno v:
Journal of Biological Chemistry. 278:27864-27875
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 structure it is known that Trp697PsaA and Trp677PsaB are π-stacked with the head group of the
Autor:
Klaus Brettel, Stephan G. Zech, Yulia Pushkar, Art van der Est, Alfia I. Valieva, Boris Zybailov, Dietmar Stehlik, Gaozhong Shen, Parag R. Chitnis, John H. Golbeck, Wu Xu, Mariana Guergova-Kuras
Publikováno v:
Journal of Biological Chemistry. 278:27876-27887
The directionality of electron transfer in Photosystem I (PS I) is investigated using site-directed mutations in the phylloquinone (QK) and FX binding regions of Synnechocystis sp. PCC 6803. The kinetics of forward electron transfer from the secondar
Autor:
Georgia Shearer, Ching-Nen Chen, James L. Dover, Daniel H. Kohl, Parag R. Chitnis, Lauren G. Holden, Maja Svrakic, Larysa Porubleva, Mark Johnston
Publikováno v:
Yeast. 20:545-554
Methylglyoxal is associated with a broad spectrum of biological effects, including cytostatic and cytotoxic activities. It is detoxified by the glyoxylase system or by its reduction to lactaldehyde by methylglyoxal reductase. We show that methylglyox
Publikováno v:
Biochemistry. 41:11200-11210
The extent of delocalization of the positive charge in the oxidized dimer of chlorophyll (Chl) constituting P700, the primary electron donor of photosystem I (PSI), has been investigated by analyzing the perturbation uponP700 + formation of infrared
Publikováno v:
Chemical Physics. 275:47-59
The existence of at least three low-energy chlorophyll a (Chl a ) antenna states is shown for photosystem I (PS I) of Synechococcus elongatus by the use of nonphotochemical hole burning (NPHB) spectroscopy. In addition to the previously reported stat
Autor:
Robert Bittl, Parag R. Chitnis, T. Wade Johnson, Stephan G. Zech, Dietmar Stehlik, John H. Golbeck, Boris Zybailov, A. Daniel Jones
Publikováno v:
Journal of Biological Chemistry. 276:39512-39521
Interruption of the phylloquinone (PhQ) biosynthetic pathway by interposon mutagenesis of themenA and menB genes inSynechocystis sp. PCC 6803 results in plastoquinone-9 (PQ-9) occupying the A1 site and functioning in electron transfer from A0 to the
Autor:
Parag R. Chitnis
Publikováno v:
Annual Review of Plant Physiology and Plant Molecular Biology. 52:593-626
▪ Abstract Photosystem I is the light-driven plastocyanin-ferredoxin oxidoreductase in the thylakoid membranes of cyanobacteria and chloroplasts. In recent years, sophisticated spectroscopy, molecular genetics, and biochemistry have been used to un