The crystal structures of the hyperthermophilic esterase from the archeon Pyrobaculum calidifontis are available (3ZWQ (replaced 2WIR, 17 aug 2011), 2YH2) and will be soon published by Palm et al. A deletion in Exon 9 of the LIPH gene (rabit-LIPH) responsible for the Rex hair coat phenotype in rabbits (Oryctolagus cuniculus) is described by Diribarne et al. Similar to mutations giving hypotrichosis in human-LIPH lipH. Backdoor opening mechanism in acetylcholinesterase based on X-ray crystallography and MD simulations is described by Sanson et al. and structure of torpedo californica Acetylcholinesterase in Complex with Aflatoxin B1 (Orthorhombic Form) is available (2XI4)