Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Jerome Souppe"'
Publikováno v:
Biocatalysis. 7:289-295
In an attempt to alter the catalytic properties of horseradish peroxidase (HRP, EC 1.11.1.7), aspartic, glutamic and arginine residues were modified using ethanedithiol and diacetyl. Modification of Asp and Glu led to a marked increase in Vmax along
Publikováno v:
Bioorganic Chemistry. 19:133-142
The oxidation of polyethylene glycol monomethyl ethers (MW 350, 1990, and 5000) by the Moffatt-Swern method to the corresponding aldehyde is described. These aldehydes are used to modify horseradish peroxidase (HRP) by a reductive amination. The modi
Publikováno v:
Enzyme and Microbial Technology. 12:46-51
This paper deals with enzymatic activities present in dialyzed crude extracts of methanol-grown Pichia pastoris : oxidation of NADH by O 2 , degradation of NADH, secondary alcohol dehydrogenase and formate dehydrogenase activities. The use of crude e
Publikováno v:
Journal of chromatography. 613(1)
A simple and rapid method for measuring phenylethanolamine N-methyltransferase (PNMT) activity by high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection is described. This assay requires a partially purified PNMT preparation de
Publikováno v:
Biochimica et biophysica acta. 1079(2)
Histidine residues in horseradish peroxidase (HRP) were modified chemically with diethyl pyrocarbonate, 4,omega-dibromoacetophenone or diallylpyrocarbonate. Histidines were chosen as His-170, the fifth ligand of the heme iron atom, forms part of the
Publikováno v:
Analytica Chimica Acta. 208:295-300
An electrochemical sensor with two soluble enzymes allows assay of 0.1–10 mM, l- carnitine with an accuracy of 2%. The assay takes about 2 min. The first enzyme, carnitine dehydrogenase, catalyzes the oxidation of l-carnitine by NAD+. The NADH form
Autor:
Martine Urrutigoïty, Jerome Souppe
Publikováno v:
Biocatalysis. 2:145-149
This paper describes the preparation of polyethyleneglycol-bound horseradish peroxidase. Coupling with the polymer occurs via the glycolic moiety of the protein after an optimised oxidation process with periodate. Analysis of the modified enzyme show