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The first crystal structure of class III superoxide reductase from Treponema pa...
Santos-Silva, Teresa; Trincão, José; Carvalho, Ana Luísa; Bonifácio, Cecília; Auchère, Françoise; Raleiras, Patrícia; Moura, Isabel; Moura, José J. G.J Biol Inorg Chem (2006) 11: 548–558 DOI 10.1007/s00775-006-0104-y ; Superoxide reductase (SOR) is a metalloprotein containing a non-heme iron centre, responsible for the scavenging of superoxide radicals in the cell. The crystal structure of Treponema pallidum (Tp) SOR was determined using soft X-rays and synchrotron radiation. Crystals of the oxidized form were obtained using poly(ethylene glycol) and MgCl2 ...
Overexpression and purification of Treponema pallidum rubredoxin; kinetic evide...
Auchère, Françoise; Sikkink, Robert; Cordas, Cristina; Raleiras, Patrícia; Tavares, Pedro; Moura, Isabel; Moura, José J. G.J Biol Inorg Chem (2004) 9: 839–849 DOI 10.1007/s00775-004-0584-6 ; Superoxide reductases are a class of non-haem iron enzymes which catalyse the monovalent reduction of the superoxide anion O2- into hydrogen peroxide and water. Treponema pallidum (Tp), the syphilis spirochete, expresses the gene for a superoxide reductase called neelaredoxin, having the iron protein rubredoxin as the putative electron donor n...
Formation of a stable cyano-bridged dinuclear iron cluster following oxidation ...
Auchère, Françoise; Raleiras, Patrícia; Benson, Linda; Tavares, Pedro; Moura, José J. G.; Moura, Isabel; Rusnak, FrankInorg. Chem., 2003, 42 (4), pp 938–940 DOI: 10.1021/ic0262886 ; Superoxide reductases catalyze the monovalent reduction of superoxide anion to hydrogen peroxide. Spectroscopic evidence for the formation of a dinuclear cyano-bridged adduct after K(3)Fe(CN)(6) oxidation of the superoxide reductases neelaredoxin from Treponema pallidum and desulfoferrodoxin from Desulfovibrio vulgaris was reported. Oxidation with...
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