نتایج جستجو برای: fe2 complex

تعداد نتایج: 786519  

Journal: :Dalton transactions 2016
C Esmieu G Berggren

An azadithiolate bridged monocyanide derivative [Fe2(adt)(CO)5(CN)]- of [Fe2(adt)(CO)4(CN)2]2- has been prepared and extensively characterized as a model of the [FeFe]-hydrogenase active site, using a combination of FTIR spectroscopy, electrochemical methods and catalytic assays with chemical reductants. The presence of two basic nitrogen sites opens up multiple protonation pathways, enabling c...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1969

Journal: :The Biochemical journal 1958
D S BENDALL

5. A Fe2+ ion-ethylenediaminetetra-acetic acid complex can catalyse the oxidative formation of an inhibitor from schradan. 6. A mechanism for the simultaneous oxidation of schradan and reduced triphosphopyridine nucleotide is suggested. 7. The requirements for the conversion of dimefox to an anti-esterase are the same as those for schradan, but the rate of esterase inhibition is much higher. Di...

Journal: :The Journal of antibiotics 1999
N Tabata H Tomoda S Omura

The structures of ferroverdins B and C, novel inhibitors of cholesteryl ester transfer protein, were elucidated by spectroscopic studies including various NMR measurements. They are the complex between one Fe2+ and three ligands, that is, two common p-vinylphenyl-3-nitroso-4-hydroxybenzoates and one hydroxy p-vinylphenyl-3-nitroso-4-hydroxybenzoate for ferroverdin B and one carboxylic acid p-vi...

2017
Qian Jiang Xican Li Yage Tian Qiaoqi Lin Hong Xie Wenbiao Lu Yuguang Chi Dongfeng Chen

BACKGROUND Mori Fructus and Mori Ramulus are two traditional Chinese herbal medicines from mulberries. The present work explores their beneficial effects on •OH-treated mesenchymal stem cells (MSCs) and discusses possible mechanisms. METHODS Lyophilized aqueous extracts of Mori Fructus (LAMF) and Mori Ramulus (LAMR) were prepared and analyzed using HPLC. LAMF and LAMR (along with morin) were ...

2003
C. RATLEDGE

Mycobacterium smegmatis was grown on trace-metal-free medium in static culture. Throughout the growth phase, the concentration of mycobactin increased continuously, reaching a maximum of about 30 to 40 ,ug of mycobactin/mg of cell dry weight after 6 days; the concentration of salicylic acid remained approximately constant at 1 to 2 Mg of salicylic acid/gg of cell dry weight. Fe2+ (or Fe3+), Zn2...

Journal: :The Journal of biological chemistry 1987
N S Punekar H A Lardy

A cytosolic protein factor (ferroactivator) facilitates the activation of phosphoenolpyruvate carboxykinase by ferrous ions (Bentle, L. A., and Lardy, H. A. (1977) J. Biol. Chem. 252, 1431-1440). We have extended our studies on the interaction of Fe2+ with this enzyme to establish the conditions under which it is an activator or an inhibitor. Preincubation of phosphoenolpyruvate carboxykinase w...

Journal: :Molecules 2016
Xican Li Qian Jiang Tingting Wang Jingjing Liu Dongfeng Chen

The role of the 6″-OH (ω-OH) group in the antioxidant activity of flavonoid glycosides has been largely overlooked. Herein, we selected quercitrin (quercetin-3-O-rhamnoside) and isoquercitrin (quercetin-3-O-glucoside) as model compounds to investigate the role of the 6″-OH group in several antioxidant pathways, including Fe2+-binding, hydrogen-donating (H-donating), and electron-transfer (ET). ...

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