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EPR evidence for a fast-relaxing iron center in Na+-translocating NADH : quinone-oxidoreductase. / Kulik, Leonid V.; Bertsova, Yulia V.; Bogachev, Alexander V.
в: Journal of Inorganic Biochemistry, Том 184, 01.07.2018, стр. 15-18.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - EPR evidence for a fast-relaxing iron center in Na+-translocating NADH
T2 - quinone-oxidoreductase
AU - Kulik, Leonid V.
AU - Bertsova, Yulia V.
AU - Bogachev, Alexander V.
N1 - Publisher Copyright: © 2018 Elsevier Inc.
PY - 2018/7/1
Y1 - 2018/7/1
N2 - A paramagnetic Cys4[Fe] center was detected by pulse EPR in Na+-translocating NADH:quinone-oxidoreductase (Na+-NQR) by influence of this center on transverse and longitudinal spin relaxation of Na+-NQR flavin radicals. The oxidation state of the Cys4[Fe] center was Fe3+ in the oxidized and Fe2+ in the reduced Na+-NQR, as deduced from the temperature dependence of spin relaxation rates of different flavin radicals. A high-spin state of iron in the Cys4[Fe] center was assigned to both forms of Na+-NQR.
AB - A paramagnetic Cys4[Fe] center was detected by pulse EPR in Na+-translocating NADH:quinone-oxidoreductase (Na+-NQR) by influence of this center on transverse and longitudinal spin relaxation of Na+-NQR flavin radicals. The oxidation state of the Cys4[Fe] center was Fe3+ in the oxidized and Fe2+ in the reduced Na+-NQR, as deduced from the temperature dependence of spin relaxation rates of different flavin radicals. A high-spin state of iron in the Cys4[Fe] center was assigned to both forms of Na+-NQR.
KW - Electron paramagnetic resonance
KW - Flavin radicals
KW - Mononuclear iron center
KW - NADH:quinone oxidoreductase
KW - Spin relaxation
KW - Electron Spin Resonance Spectroscopy/methods
KW - Temperature
KW - Oxidation-Reduction
KW - Bacterial Proteins/chemistry
KW - NAD(P)H Dehydrogenase (Quinone)/chemistry
KW - Iron/chemistry
UR - http://www.scopus.com/inward/record.url?scp=85056461409&partnerID=8YFLogxK
U2 - 10.1016/j.jinorgbio.2018.04.004
DO - 10.1016/j.jinorgbio.2018.04.004
M3 - Article
C2 - 29635097
AN - SCOPUS:85056461409
VL - 184
SP - 15
EP - 18
JO - Journal of Inorganic Biochemistry
JF - Journal of Inorganic Biochemistry
SN - 0162-0134
ER -
ID: 17471511