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Abstract. The chemical shifts of the methyl protons of protoporphyrin IX, which are readily assigned, are related to the structural features of the axial histidine ligands in heme proteins with bis-His or His-CN axial coordination (Bertini I, Luchinat C, Parigi G, Walker FA (1999) JBIC 4:515519). In the present paper, a module is developed which transforms the chemical shifts into a pseudo-potential...
Peroxidases are heme proteins which are able to catalyze the oxidization of a large variety of substrates through the reaction with hydrogen peroxide. The specific biological function, the reduction potential of the iron and the nature of the substrates which can be oxidized, are strongly determined by the structural features of the protein matrix around the prosthetic group. In particular, two main...
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