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Vasin A.,Reseach Institute of Influenza | Klotchenko S.,Reseach Institute of Influenza | Puchkova L.,Saint Petersburg State University
PLoS Currents | Year: 2013

Multicopper blue proteins, composed of several repetitive copper-binding domains similar to one-domain cupredoxin-like proteins, were found in almost all organisms. They are classified into the three different groups, based on their two-, three- or six-domain organization. We found orthologs of chordate six-domain copper-binding proteins in animals, plants, bacteria and archea. The phylogenetic analysis of 183 multicopper blue proteins and their copper-binding sites comparison make us think that all the modern six-domain blue proteins have originated from the common ancestral six-domain protein in the process of gene duplication and copper-binding sites loss as a result of amino acid substitutions. Source

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