PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8144590-6 1994 The overall structure of cholinesterases was conserved in ACE-1 as indicated by the conserved sequence positions of Ser-216, His-468, and Glu-346 (S200, H440, E327 in Torpedo (AChE) as components of the catalytic triad, of the six cysteines which form three intrachain disulfide bonds, and of Trp-99(84), a critical side chain in the choline binding site. Disulfides 269-278 ACE1 Drosophila melanogaster 58-63