article human ATOX1 protein, human ATPases Activation barriers Adenosine Triphosphatases Animals CCAAT-Enhancer-Binding Protein-delta Cation Transport Proteins Computational approach Coordination geometry Coordination reactions Copper Cys residues Dexamethasone Epithelium Experimental data Gene expression HC11 Humans Insulin Intermediate specie Involution LIF Leukemia Inhibitory Factor Mammary Glands, Animal Mammary epithelium Metal binding domain Metal-binding motif Metals