PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25464507-5 2014 The selectivity of NCs toward various metal ions, including Cd(II), Co(II), Cr(III), Cu(II), Fe(III), Ni(II), and Zn(II) was studied. N-chlorosuccinimide 19-22 mitochondrially encoded cytochrome c oxidase II Homo sapiens 68-74