title: [Discussion of the hypothetical structural model of the active center in a manganese-protein complex].
abstract: It is discussed the structural model of the management-protein complex centre participating in the O2-evolution process. The points of the model are the followings: the protein complex appears to contain only one manganese ion Mn2+. It is supposed that the manganese is complexed with the peptide chains fragment as the ligand. According to the crystallite field theory the active centre is the complex of octahedral symmetry. It is proposed that complex is formed by the skeleton of the peptide chain by the donor-accepting bonds of Mn2+ and four peptide nitrogens (d2sp3-hybridization), and two vacant orbitals are for the complex functioning.
authors.forename: L Iu
authors.initials: LIu
authors.lastname: Vasil'eva
mesh_terms: D001665:Binding Sites; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D008962:Models, Theoretical; D011485:Protein Binding; D011506:Proteins / Q000737:chemistry*
chemical_list: D011506:Proteins; D008345:Manganese