Structure of Phosphotriesterase mutant H254Q/H257FStructure of Phosphotriesterase mutant H254Q/H257F
Structural highlights
2oql is a 2 chain structure with sequence from Brevundimonas diminuta. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
OPD_BREDI Has an unusual substrate specificity for synthetic organophosphate triesters and phosphorofluoridates. All of the phosphate triesters found to be substrates are synthetic compounds. The identity of any naturally occurring substrate for the enzyme is unknown. Has no detectable activity with phosphate monoesters or diesters and no activity as an esterase or protease. It catalyzes the hydrolysis of the insecticide paraoxon at a rate approaching the diffusion limit and thus appears to be optimally evolved for utilizing this synthetic substrate.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
