A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a Article£¬once mentioned of 3301-94-8, Safety of 6-Butyltetrahydro-2H-pyran-2-one
Marked enhancement of Acinetobacter sp. Organophosphorus hydrolase activity by a single residue substitution Ile211Ala
Background: The activity of organophosphorus hydrolase (OPH) that catalyzes the hydrolysis of neurotoxic organo-phosphates (OPs) was reported to evolve from lactonase. Results: In this study, a putative OPH from Acinetobacter sp. (AbOPH) exhibited high lactonase activity with latent OPH activity. Sequence alignment and phylogenetic tree analysis revealed the unique status of AbOPH in evolution. The crystal structure of AbOPH was determined at 2.0 A resolution and a semi-rational design was performed to enhance the OPH activity of AbOPH through a consensus sequence approach. Compared with wild-type AbOPH, which exhibited undetectable activity toward methyl-parathion (MP), the best variant AbOPHI211A showed markedly improved catalytic efficiency (1.1 mumol min?1 mg?1 toward MP. Docking studies suggested that the mutation Ile- 211Ala affects substrate recognition and stabilizesprotein)substrate conformation. Conclusions: This result presents the emergence of new enzyme function by a simple mutation strategy and confirms the high possibility that OPH was evolved from its lactonase ancestor.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Safety of 6-Butyltetrahydro-2H-pyran-2-one. In my other articles, you can also check out more blogs about 3301-94-8
Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics