Faculty Opinions recommendation of Crystal structure of mammalian cysteine dioxygenase. A novel mononuclear iron center for cysteine thiol oxidation.

2006 ◽  
Author(s):  
Michael Maroney
Keyword(s):  
Crystal Structure ◽  
Cysteine Dioxygenase ◽  
Thiol Oxidation ◽  
Mononuclear Iron ◽  
Iron Center

scholarly journals Crystal Structure of a Mononuclear Iron(III) Complex, Chloridopentakis(dimethylsulfoxide-κO)iron(III) Bis(tetraphenylborate)

2018 ◽  
Vol 34 (0) ◽  
pp. 1-2
Author(s):  
Kosuke YOSHIDA ◽  
Ryoji MITSUHASHI ◽  
Masahiro MIKURIYA ◽  
Hiroshi SAKIYAMA
Keyword(s):  
Crystal Structure ◽  
Mononuclear Iron

Crystal structure, magnetic and heat capacity properties of a new chiral mononuclear iron(II) compound

2018 ◽  
Vol 135 (6) ◽  
pp. 3421-3428
Author(s):  
Hui Zheng ◽  
Xin Liu ◽  
Nan Yin ◽  
Zhicheng Tan ◽  
Quan Shi
Keyword(s):  
Crystal Structure ◽  
Heat Capacity ◽  
Mononuclear Iron

scholarly journals A 2‐Tyr‐1‐carboxylate Mononuclear Iron Center Forms the Active Site of a Paracoccus Dimethylformamidase

2020 ◽  
Vol 132 (39) ◽  
pp. 17109-17114
Author(s):  
Chetan Kumar Arya ◽  
Swati Yadav ◽  
Jonathan Fine ◽  
Ana Casanal ◽  
Gaurav Chopra ◽  
...  
Keyword(s):  
Active Site ◽  
Mononuclear Iron ◽  
Iron Center

scholarly journals A novel iron center in desulfoferrodoxin fromD. desulfuricansATCC 27774: crystal structure at 1.8 Å resolution

1996 ◽  
Vol 52 (a1) ◽  
pp. C71-C71
Author(s):  
P. M. Matias ◽  
A. Coelho ◽  
M. A. Carrondo ◽  
V. Fülöp ◽  
A. Gonzalez ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Iron Center

scholarly journals Spin Crossover in Three Mononuclear Iron (III) Schiff Base Complexes

Metals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 849 ◽  
Author(s):  
Ivan Nemec ◽  
Ingrid Svoboda ◽  
Radovan Herchel
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Spin Crossover ◽  
Theoretical Calculations ◽  
Magnetic Behavior ◽  
Schiff Base Complexes ◽  
Mononuclear Iron ◽  
Mononuclear Complexes

The synthesis, crystal structure, and magnetic properties of three new mononuclear complexes [Fe(R-LA)(L1)](BPh4), where R-LA2− is a doubly deprotonated pentadentate Schiff base ligand and L1 is a monodentate benzimidazole or furopyridine ligand, are reported. Ligand- and anion-driven changes in crystal structures and magnetic behavior were investigated in terms of the magnetic susceptibility measurements and theoretical calculations.

scholarly journals Purification and Characterization of Carbazole 1,9a-Dioxygenase, a Three-Component Dioxygenase System of Pseudomonas resinovorans Strain CA10

2002 ◽  
Vol 68 (12) ◽  
pp. 5882-5890 ◽  
Author(s):  
Jeong-Won Nam ◽  
Hideaki Nojiri ◽  
Haruko Noguchi ◽  
Hiromasa Uchimura ◽  
Takako Yoshida ◽  
...  
Keyword(s):  
Native Form ◽  
Mononuclear Iron ◽  
Pseudomonas Resinovorans ◽  
Apparent Homogeneity ◽  
Strain Bl21 ◽  
Prosthetic Groups ◽  
Strain Ca10 ◽  
Iron Center

ABSTRACT The carbazole 1,9a-dioxygenase (CARDO) system of Pseudomonas resinovorans strain CA10 consists of terminal oxygenase (CarAa), ferredoxin (CarAc), and ferredoxin reductase (CarAd). Each component of CARDO was expressed in Escherichia coli strain BL21(DE3) as a native form (CarAa) or a His-tagged form (CarAc and CarAd) and was purified to apparent homogeneity. CarAa was found to be trimeric and to have one Rieske type [2Fe-2S] cluster and one mononuclear iron center in each monomer. Both His-tagged proteins were found to be monomeric and to contain the prosthetic groups predicted from the deduced amino acid sequence (His-tagged CarAd, one FAD and one [2Fe-2S] cluster per monomer protein; His-tagged CarAc, one Rieske type [2Fe-2S] cluster per monomer protein). Both NADH and NADPH were effective as electron donors for His-tagged CarAd. However, since the k cat/Km for NADH is 22.3-fold higher than that for NADPH in the 2,6-dichlorophenolindophenol reductase assay, NADH was supposed to be the physiological electron donor of CarAd. In the presence of NADH, His-tagged CarAc was reduced by His-tagged CarAd. Similarly, CarAa was reduced by His-tagged CarAc, His-tagged CarAd, and NADH. The three purified proteins could reconstitute the CARDO activity in vitro. In the reconstituted CARDO system, His-tagged CarAc seemed to be indispensable for electron transport, while His-tagged CarAd could be replaced by some unrelated reductases.

Synthesis and Crystal Structures of a New μ-Bis(tetradentate) Schiff Base Ligand and its Mononuclear Iron(III) Complex: Iron(III) Induced Imidazolidine Ring Hydrolysis of Binucleating Schiff Base Ligand

2005 ◽  
Vol 60 (5) ◽  
pp. 520-526 ◽  
Author(s):  
C. T. Zeyrek ◽  
A. Elmali ◽  
Y. Elerman
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Crystal Structures ◽  
Schiff Base Ligand ◽  
Minimum Energy ◽  
Mononuclear Iron ◽  
Tetradentate Schiff Base ◽  
Oxygen Donor ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

The μ-bis(tetradentate) ligand, [C27H26Cl3N4O4], H3L′, 1,3-bis[N-(5-chloro-2-hydroxybenzylidene)- 2-aminoethyl]-2-(5-chloro-2-hydroxyphenyl)imidazolidine and its mononuclear iron(III) complex, [Fe(L)](ClO4), L = N, N′-bis(5-chloro-2-hydroxybenzylidene)-triethylenetetramine have been synthesized and their crystal structures determined. Minimum energy conformations of the ligand were calculated (MOPAC, AM1) as a function of two torsion angles and the results compared with optimized crystal structure. The ligand (H3L′) reacts with Fe(ClO4)2 · 6H2O in aqueous methanol to form the mononuclear [Fe(L)](ClO4) complex with the imidazolidine ring cleaved by hydrolysis. The complex has an N4O2 donor atom set forming a distorted octahedral coordination geometry around the metal atom as established from a crystal structure determination. The terminal oxygen donor atoms occupy cis positions, and the remaining four nitrogen atoms (two cis amine and two trans imine) complete the coordination sphere.

scholarly journals A 2‐Tyr‐1‐carboxylate Mononuclear Iron Center Forms the Active Site of a Paracoccus Dimethylformamidase

2020 ◽  
Vol 59 (39) ◽  
pp. 16961-16966
Author(s):  
Chetan Kumar Arya ◽  
Swati Yadav ◽  
Jonathan Fine ◽  
Ana Casanal ◽  
Gaurav Chopra ◽  
...  
Keyword(s):  
Active Site ◽  
Mononuclear Iron ◽  
Iron Center
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