Chemical evolution of peroxidase--amino acid pentacyanoferrate (II) complexes as model.
Complexes of the type [Fe(II)(CN)5(L)]n- (where n = 3, or 4; L = glycine, histidine, imidazole, and triglycine) are proposed as evolutionary model of peroxidases. Detailed kinetic investigation for disproportionation of hydrogen peroxide catalysed by [Fe(II)(CN)5(L)]n- complexes at 40 degrees C and pH 9.18 are discussed. Decomposition of hydrogen peroxide catalysed by above complexes conforms to Michaelis-Menten type kinetics.
Kamaluddin
Department of Chemistry, University of Roorkee, India.
Nath
M
M
Deopujari
S W
SW
D000596:Amino Acids; D005296:Ferrous Compounds; D006861:Hydrogen Peroxide; D007700:Kinetics; D008433:Mathematics; D008962:Models, Theoretical; D009942:Organometallic Compounds; D010544:Peroxidases / Q000378:metabolism*
D000596:Amino Acids; D005296:Ferrous Compounds; D009942:Organometallic Compounds; C058614:pentacyanoferrate (II); D006861:Hydrogen Peroxide; D010544:Peroxidases