The Inhibitory Effect of New Antimony(III)-Based Organometallic Complexes on the Photochemical Activity of Photosystem II and the Activity of Chloroplast Carbonic Anhydrase and Glutathione Reductase

2020 ◽  
Vol 15 (1) ◽  
pp. 90-95
Author(s):  
L. Khalilova ◽  
M. V. Rodionova ◽  
M. S. Karacan ◽  
N. Karacan ◽  
S. Alwasel ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Carbonic Anhydrase ◽  
Glutathione Reductase ◽  
Inhibitory Effect ◽  
Photochemical Activity ◽  
Organometallic Complexes

Evaluation of new Cu(II) complexes as a novel class of inhibitors against plant carbonic anhydrase, glutathione reductase, and photosynthetic activity in photosystem II

2017 ◽  
Vol 133 (1-3) ◽  
pp. 139-153 ◽  
Author(s):  
Margarita V. Rodionova ◽  
Sergei K. Zharmukhamedov ◽  
Mehmet Sayım Karacan ◽  
Kubra Begum Venedik ◽  
Alexandr V. Shitov ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Carbonic Anhydrase ◽  
Glutathione Reductase ◽  
Photosynthetic Activity

Characterization of nineteen antimony(III) complexes as potent inhibitors of photosystem II, carbonic anhydrase, and glutathione reductase

2016 ◽  
Vol 130 (1-3) ◽  
pp. 167-182 ◽  
Author(s):  
Mehmet Sayım Karacan ◽  
Margarita V. Rodionova ◽  
Turgay Tunç ◽  
Kübra Begüm Venedik ◽  
Serhat Mamaş ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Carbonic Anhydrase ◽  
Glutathione Reductase

scholarly journals Subunit composition of CP43-less photosystem II complexes of Synechocystis sp. PCC 6803: implications for the assembly and repair of photosystem II

2012 ◽  
Vol 367 (1608) ◽  
pp. 3444-3454 ◽  
Author(s):  
M. Boehm ◽  
J. Yu ◽  
V. Reisinger ◽  
M. Beckova ◽  
L. A. Eichacker ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Gel Electrophoresis ◽  
Photochemical Activity ◽  
Subunit Composition ◽  
Null Mutant ◽  
Trap Potential ◽  
Native Gel ◽  
Oxygen Evolving ◽  
Pcc 6803

Photosystem II (PSII) mutants are useful experimental tools to trap potential intermediates involved in the assembly of the oxygen-evolving PSII complex. Here, we focus on the subunit composition of the RC47 assembly complex that accumulates in a psbC null mutant of the cyanobacterium Synechocystis sp. PCC 6803 unable to make the CP43 apopolypeptide. By using native gel electrophoresis, we showed that RC47 is heterogeneous and mainly found as a monomer of 220 kDa. RC47 complexes co-purify with small Cab-like proteins (ScpC and/or ScpD) and with Psb28 and its homologue Psb28-2. Analysis of isolated His-tagged RC47 indicated the presence of D1, D2, the CP47 apopolypeptide, plus nine of the 13 low-molecular-mass (LMM) subunits found in the PSII holoenzyme, including PsbL, PsbM and PsbT, which lie at the interface between the two momomers in the dimeric holoenzyme. Not detected were the LMM subunits (PsbK, PsbZ, Psb30 and PsbJ) located in the vicinity of CP43 in the holoenzyme. The photochemical activity of isolated RC47-His complexes, including the rate of reduction of P680 + , was similar to that of PSII complexes lacking the Mn 4 CaO 5 cluster. The implications of our results for the assembly and repair of PSII in vivo are discussed.

A Herbicide Resistant Euglena Mutant Carrying a Ser to Thr Substitution at Position 265 in the D1 Protein of Photosystem II

1992 ◽  
Vol 47 (3-4) ◽  
pp. 245-248 ◽  
Author(s):  
A. Aiach ◽  
E. Ohmann ◽  
U. Bodner ◽  
U. Johanningmeier
Keyword(s):  
Amino Acids ◽  
Sequence Analysis ◽  
Photosystem Ii ◽  
D1 Protein ◽  
Inhibitory Effect ◽  
Wild Type ◽  
Rna Sequence ◽  
Herbicide Resistant ◽  
Lower Resistance ◽  
Chlamydomonas Mutants

A herbicide resistant Euglena mutant (MSI) has been obtained by adapting wild type cells to increasing concentrations of DCMU (3-(3′,4′-dichlorophenyl)-1,1-dimethylurea). Lower resistance levels towards DCMU and metribuzin were observed in MSI when compared with Euglena or Chlamydomonas mutants with Ser 264 to Ala substitutions. RNA-sequence analysis identified a Ser to Thr change at position 265 (equivalent to position 264 in other organisms), thus making it possible to compare the influence of amino acids Ser, Ala and Thr at identical positions on the inhibitory effect of structurally different herbicides in the same species.

scholarly journals Inhibitory effect of novel pyrazole carboxamide derivatives on human carbonic anhydrase enzyme

2012 ◽  
Vol 28 (2) ◽  
pp. 328-336 ◽  
Author(s):  
Elvan Şen ◽  
Zuhal Alım ◽  
Hatice Duran ◽  
Mehmet Mustafa İşgör ◽  
Şükrü Beydemir ◽  
...  
Keyword(s):  
Carbonic Anhydrase ◽  
Inhibitory Effect ◽  
Human Carbonic Anhydrase ◽  
Carbonic Anhydrase Enzyme
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