Erratum to: Kinetic studies in ester hydrolysis
نویسندگان
چکیده
منابع مشابه
Modeling of prebiotic catalysis with adenylated polymeric templates: crystal structure studies and kinetic characterization of template-assisted phosphate ester hydrolysis.
We have synthesized and characterized novel, copper-metalated, polymeric templates that contain adenine nucleobases. These promote hydrolysis of non-natural and natural phosphate ester substrates in a highly efficient and catalytic fashion. The crystal structure of the cooper-containing adenylated monomer reveals the formation of a polymeric array, through coordination to both N1 and N7 atoms. ...
متن کاملDifferent kinetic patterns in the alpha-chymotrypsin-catalysed hydrolysis of synthetic ester substrates.
The reaction of alpha-chymotrypsin with AcTyr-OEt and with AcTrp-OEt at pH 7.0 and 7.8 was studied over a wide range of substrate concentrations. The reaction with AcTyr-OEt at pH 7.8 was shown to be non-hyperbolic using a variety of criteria whereas those at pH 7.0 with the same substrate and at both pH values with AcTrp-OEt were hyperbolic. The non-hyperbolicity of the reaction with AcTyr-OEt...
متن کاملKinetic analysis of the catalytic properties of peptides in ester hydrolysis.
The catalytic properties of peptides containing histidine, cysteine and aspartic acid in ester hydrolysis were studied. Saturation kinetics were found for the reaction of p-nitrophenyl acetate (NPA) with Z-His-Ala-Asp-Gly-Cys-NH2 and Z-His-Ala-Gly-Cly-Cys-NH2. The Brönsted equation for the hydrolysis of tert-butyloxcarbonyl-L-alanine-p-nitrophenylester (Bos-Ala-ONp) catalyzed by simple imidazol...
متن کاملTriglyceride and cholesteryl ester hydrolysis
Cultured rabbit aortic smooth muscle cells were converted to foam cells by exposure to sonicated lipid droplets of defined composition using an inverted culture technique. Uptake of the lipid droplets by the cells was shown to be dependent on the time of exposure to the droplets and on the mass of droplets presented to the cells. A comparison of the hydrolysis of triolein and cholesteryl oleate...
متن کاملSemiempirical molecular orbital studies of the acylation step in the lipase-catalyzed ester hydrolysis
In this study, we present the results from the semiempirical molecular orbital calculations for the acylation step in the lipase-catalyzed ester hydrolysis. The results reveal that the lowest energy path for the formation of the tetrahedral intermediate is for the serine residue of the catalytic triad to attack the substrate, followed by coupling heavy atom movement and proton transfer. The cal...
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ژورنال
عنوان ژورنال: Proceedings of the Indian Academy of Sciences - Section A
سال: 1950
ISSN: 0370-0089
DOI: 10.1007/bf03172518