Crystal structure of alpha/beta superfamily hydrolase (oenob-q04d10) from Oenococcus oeni PSU-1 (3FSG) is available and soon published by Nocek B. et al. Acetylcholinesterase genes (ace1 orcvi-ACHE1 and ace2 orcvi-ACHE2) in the basal Hexapod Orchesella villosa are available Nardi et al.. Locusta migratoria manilensis (Oriental migratory locust) ace1 locmi-ACHE1 is also available by Zhou,X. and Xia,Y.