CREVICE STRUCTURES IN HEMOPROTEIN REACTIONS

Abstract
Certain features of the formation of ferriperoxidase and ferricatalase complexes, which distinguish them from the other 3 hemeproteins (cytochrome-c, hemoglobin, and myoglobin), can be explained by the simple hypothesis that a crevice structure with 2 Fe-protein bonds exists in the parent compounds, and, when a complex formation occurs, one of the bonds is broken liberating a group with a high proton affinity. Complete experimental data and diagrams are given to support this hypothesis.