1.14.17.1 copper contains copper 728562 1.14.17.1 Cu2+ - 438609, 438631, 438632 1.14.17.1 Cu2+ 1.1 Cu2+/subunit, increasing stimulation of activity by addition of up to 1 Cu2+/subunit, further additions up to at least 4 Cu/subunit gave neither stimulation nor inhibition 438628 1.14.17.1 Cu2+ 2,6-dimethylphenyl isocyanide as the isocyanide ligand demonstrated, first: the formation of a mono-DIMPI-four-coordinate complex at each copper, second: the formation of complexes containing more than one isocyanide per copper 438635 1.14.17.1 Cu2+ 3 mol of copper per mol of tetramer, MW 290000 438623 1.14.17.1 Cu2+ 4 atoms of tightly bound copper per tetramer 438602 1.14.17.1 Cu2+ a copper protein 438589, 438601, 438604, 438608, 438623, 438628 1.14.17.1 Cu2+ about 8 Cu2+ per tetramer 438601 1.14.17.1 Cu2+ DBH is an ascorbate-dependent glycoprotein that requires two type 2 bound copper ions per subunit to be active. copper sites are labile and termed CuH and CuM, respectively. CuH is coordinated to three histidines and CuM to two histidines and a methionine. CuM is involved in dioxygen binding and is the site for substrate hydroxylation, and CuH is the site of electron transfer 746431 1.14.17.1 Cu2+ enzyme contains a constant amount of Cu2+, 2 mol per mol of protein, and a variable amount of Cu2+, copper content is a linear function of the purity of the enzyme 438608 1.14.17.1 Cu2+ enzyme not activated by exogenous copper but activity decreases at high concentrations 438633 1.14.17.1 Cu2+ enzyme-bound, required for activity 744950 1.14.17.1 Cu2+ Km: 0.00003-0.0002 mM 438624 1.14.17.1 Cu2+ required 745892 1.14.17.1 Cu2+ The enzyme contains two copper centers, one performs the substrate hydroxylation, while the second is used for electron storage/transfer 674660 1.14.17.1 Cu2+ tyramine can bind to either the Cu(I) or Cu(II) forms of TbetaM 704443 1.14.17.1 Fe2+ 0.0004 mM per mol of enzyme 438608 1.14.17.1 Mg2+ regulates the translation of enzyme and affects the ratio of the two glycosylated forms of the enzyme 438637 1.14.17.1 additional information Cu2+, Mn2+, Ni2+, Co2+, Zn2+, Pb2+, Fe2+, Fe3+ reduce translation of enzyme at concentrations above 1.5 mM, Ni2+ and Cu2+ inhibit the glycosylation 438637 1.14.17.1 additional information the structure of the common DOMON (dopamine beta-monooxygenase N-terminal) domain reveals a possible metal-binding site and a ligand-binding pocket, coordinating residues are Asp99, Leu100, Ala115, and Asp130 746431 1.14.17.1 NaCl - 438603 1.14.17.1 VO2+ 1 VO2+/subunits during catalysis 438628