PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22520752-4 2012 Our selection for prevention of acetylcholinesterase inhibition also resulted in the complete reversion of PON1"s stereospecificity, from an enantiomeric ratio (E) < 6.3 x 10(-4) in favor of the R(P) isomer of a cyclosarin analog in wild-type PON1, to E > 2,500 for the S(P) isomer in an evolved variant. cyclohexyl methylphosphonofluoridate 215-225 paraoxonase 1 Homo sapiens 107-111 17129656-2 2007 We have previously identified three key positions in PON1 that affect OP hydrolysis: Leu69, Val346 and His115, that significantly enhance the hydrolysis of cyclosarin (GF), soman, chlorpyrifos-oxon (ChPo), O-isopropyl-O-(p-nitrophenyl)methylphosphonate (IMP-pNP) and diisopropyl fluorophosphate (DFP). cyclohexyl methylphosphonofluoridate 156-166 paraoxonase 1 Homo sapiens 53-57 22720164-6 2012 Based on the G2E6 polar mutations, we "humanized" an engineered variant of PON1 with high activity against cyclosarin (GF) and found that it was still very active against GF with much greater similarity to the human sequence. cyclohexyl methylphosphonofluoridate 107-117 paraoxonase 1 Homo sapiens 75-79 16640555-2 2006 Mammalian paraoxonase (PON1) was found to be more active than Pseudomonas diminuta OP hydrolase (OPH) and squid O,O-di-isopropyl fluorophosphatase (DFPase) in detoxifying cyclosarin (O-cyclohexyl methylphosphonofluoridate) and soman (O-pinacolyl methylphosphonofluoridate). cyclohexyl methylphosphonofluoridate 171-181 paraoxonase 1 Homo sapiens 23-27 16640555-3 2006 Subsequently, nine directly evolved PON1 variants, selected for increased hydrolytic rates with a fluorogenic diethylphosphate ester, were tested for detoxification of cyclosarin, soman, O-isopropyl-O-(p-nitrophenyl) methyl phosphonate (IMP-pNP), DFP, and chlorpyrifos-oxon (ChPo). cyclohexyl methylphosphonofluoridate 168-178 paraoxonase 1 Homo sapiens 36-40 16640555-6 2006 Cyclosarin detoxification was approximately 10-fold faster with PON1 mutants V346A and L69V. cyclohexyl methylphosphonofluoridate 0-10 paraoxonase 1 Homo sapiens 64-68 16640555-11 2006 GC/pulsed flame photometer detector analysis, compared with assay of residual acetylcholinesterase inhibition, displayed stereoselective hydrolysis of cyclosarin, soman, and IMP-pNP, indicating that PON1 is less active toward the more toxic optical isomers. cyclohexyl methylphosphonofluoridate 151-161 paraoxonase 1 Homo sapiens 199-203