>sp|Q9ZZ51|COX2_SQUAC Cytochrome c oxidase subunit 2 OS=Squalus acanthias GN=MT-CO2 MAHPSQLGFQDAASPVMEELLHFHDHTLMIVFLISTLVLYIIMAMVSTKLTNKYILDSQE IEIVWTILPAVILIMIALPSLRILYLMDEINDPHLTIKAMGHQWYWSYEYTDYEDLGFDS YMIQTQDLTPGQFRLLETDHRMVVPMESPIRVLVSAEDVLHSWTVPALGVKMDAVPGRLN QTAFIISRPGVYYGQCSEICGANHSFMPIVVEAVPLEHFESWSSLMLEEA