Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Boris K, Semin"'
Autor:
Boris K. Semin, E.R. Lovyagina
Publikováno v:
Journal of Plant Biochemistry and Biotechnology. 31:440-445
In the presented work, a comparative study of the photosystem II (PSII) preparations resistance to elevated temperatures at pH 6.5 and 5.7 was carried out. The native and Ca-depleted PSII are completely inactivated (oxygen evolution and 2,6-dichlorop
Autor:
Boris K. Semin, E. R. Lovyagina
Publikováno v:
Biophysics. 66:65-69
The temperature stability of electron transfer to the artificial electron acceptor 2,6-dichlorophenolindophenol in preparations of native photosystem II and photosystem II without the calcium cation in an oxygen-evolving complex was studied. The ther
Publikováno v:
JBIC Journal of Biological Inorganic Chemistry. 26:1-11
The interaction of Tb3+ and La3+ cations with different photosystem II (PSII) membranes (intact PSII, Ca-depleted PSII (PSII[-Ca]) and Mn-depleted PSII (PSII[-Mn]) membranes) was studied. Although both lanthanide cations (Ln3+) interact only with Ca2
Autor:
L. N. Davletshina, Boris K. Semin
Publikováno v:
Photosynthesis Research. 145:135-143
Ca-depleted photosystem II membranes (PSII[-Ca]) do not contain PsbP and PsbQ proteins protecting the Mn4CaO5 cluster of the PSII oxygen-evolving complex (OEC). Therefore, the Mn ions in the PSII(-Ca) membranes can be reduced by exogenous bulky reduc
Publikováno v:
Moscow University Biological Sciences Bulletin. 74:81-85
Photosystem II (PSII) of higher plants provides photoinduced water oxidation and produces molecular oxygen as a by-product of this reaction followed by its release into the atmosphere. The oxygen-evolving complex (OEC) is located on the donor side of
Publikováno v:
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry. 26(1)
The interaction of Tb
Autor:
L. N. Davletshina, Boris K. Semin
Publikováno v:
Moscow University Biological Sciences Bulletin. 73:113-117
Transport of electrons in spinach photosystem II (PSII) whose oxygen-evolving complex (OEC) contains heterogeneous metal clusters 2Mn2Fe and 3Mn1Fe was studied by measuring the fluorescence induction kinetics (FIK). PSII(2Mn,2Fe) and PSII(3Mn,1Fe) pr
Publikováno v:
Journal of Photochemistry and Photobiology B: Biology. 178:192-200
Extraction of Mn cations from the oxygen-evolving complex (OEC) of Ca-depleted PSII membranes (PSII[-Ca,4Mn]) by reductants like hydroquinone (H2Q) occurs with lower efficiency at acidic pH (2Mn/reaction center [RC] are extracted at pH5.7) than at ne
Publikováno v:
Photosynthesis Research. 136:83-91
Lumenal extrinsic proteins PsbO, PsbP, and PsbQ of photosystem II (PSII) protect the catalytic cluster Mn4CaO5 of oxygen-evolving complex (OEC) from the bulk solution and from soluble compounds in the surrounding medium. Extraction of PsbP and PsbQ p
Autor:
Michael Seibert, Boris K. Semin
Publikováno v:
Journal of Bioenergetics and Biomembranes. 48:227-240
We have investigated the interaction of Fe(II) cations with Ca-depleted PSII membranes (PSII[-Ca,4Mn]) in the dark and found that Fe(II) incubation removes 2 of 4 Mn ions from the tetranuclear Mn cluster of the photosynthetic O2-evolving complex (OEC