Light-Stimulated Generation of Free Radicals by Quinones-Chelators

2017 ◽  
Vol 231 (2) ◽  
Author(s):  
Irina D. Markova ◽  
Nikolay E. Polyakov ◽  
Olga Yu. Selyutina ◽  
Lidia G. Fedenok ◽  
Kirill Yu. Fedotov ◽  
...  
Keyword(s):  
Metal Ions ◽  
Nuclear Polarization ◽  
Anticancer Agent ◽  
Reduction Potential ◽  
Redox Activity ◽  
Optical Absorption Spectroscopy ◽  
Synthetic Analog ◽  
Divalent Metal Ions ◽  
Chemically Induced

AbstractThe role of metal ions in the mechanism of light-stimulated redox activity of potential anticancer agent 2-phenyl-4-(butylamino)naphtha[2,3-h]quinoline-7,12-dione (Qc) has been studied by CIDNP (chemically induced dynamic nuclear polarization) and EPR methods. The photo-induced oxidation of NADH and its synthetic analog – substituted dihydropyridine (DHP) – by quinone Qc was used as a model. The Qc capability of producing chelating complexes with divalent metal ions of Fe, Zn and Ca was studied quantitatively by optical absorption spectroscopy. A significant decrease of electrochemical reduction potential of Qc (Δ

scholarly journals Rhizosphere Acidification by Iron Deficient Bean Plants: The Role of Trace Amounts of Divalent Metal Ions

1989 ◽  
Vol 90 (1) ◽  
pp. 359-364 ◽  
Author(s):  
H. Frits Bienfait ◽  
Henk J. Lubberding ◽  
Peter Heutink ◽  
L. Lindner ◽  
Jacques Visser ◽  
...  
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Rhizosphere Acidification ◽  
Bean Plants ◽  
Iron Deficient

scholarly journals A dual role of divalent metal ions in catalysis and folding of RNase H1 from extreme halophilic archaeonHalobacteriumsp. NRC-1

FEBS Open Bio ◽  
2012 ◽  
Vol 2 (1) ◽  
pp. 345-352 ◽  
Author(s):  
Elias Tannous ◽  
Koji Yokoyama ◽  
Dong-Ju You ◽  
Yuichi Koga ◽  
Shigenori Kanaya
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Dual Role ◽  
Divalent Metal Ions

Role of divalent metal ions in the hammerhead RNA cleavage reaction

Biochemistry ◽  
1991 ◽  
Vol 30 (39) ◽  
pp. 9464-9469 ◽  
Author(s):  
SueAnn C. Dahm ◽  
Olke C. Uhlenbeck
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Rna Cleavage ◽  
Divalent Metal Ions ◽  
Cleavage Reaction ◽  
Hammerhead Rna

scholarly journals Role of Divalent Metal Ions on the Basic Properties and Molecular Chains of Natural Rubber

2018 ◽  
Vol 452 ◽  
pp. 022057
Author(s):  
Fuchun Zhao ◽  
Jie Guan ◽  
Wanna Bai ◽  
Tingting Gu ◽  
Huan Liu ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Basic Properties
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