Abstract: Assay for testing a sample for the presence or absence of inhibition of the enzymatic conversion of 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate into isopentenyl diphosphate and/or dimethylallyl diphosphate by the following steps: (a) reacting an aqueous mixture containing 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate, a 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphnte reductase, and a reducing agent under predetermined reaction conditions for a predetermined period of time; (b) analyzing the reaction mixture obtained in step (a) for the consumed amount of 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate and/or NAD(P)H and/or for the produced amount of isopentenyl diphosphate, and/or dimethylallyl diphosphate and/or NAD(P)+; (c) repeating step (a) in the presence of the sample to be tested; (d) repeating step (b) with the reaction mixture defined in step (c); (e) comparing the results of steps (b) and (d).
Type:
Grant
Filed:
January 15, 2004
Date of Patent:
July 22, 2008
Assignee:
Adelbert Bacher
Inventors:
Adelbert Bacher, Petra Adam, Wolfgang Eisenreich, Tobias Gräwert, Stefan Hecht, Felix Rohdich, Ferdinand Zepeck
Abstract: Assay for testing a sample for the presence or absence of inhibition of the enzymatic conversion of 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate into isopentenyl diphosphate and/or dimethylallyl diphosphate by the following steps: a) reacting an aqueous mixture containing 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate, a 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate reductase, and a reducing agent under predetermined reaction conditions for a predetermined period of time; b) analyzing the reaction mixture obtained in step (a) for the consumed amount of 1-hydroxy-2-methyl-(E)-butenyl 4-diphosphate and/or NAD(P)H and/or for the produced amount of isopentenyl diphosphate, and/or dimethylallyl diphosphate and/or NAD(P)+; c) repeating step (a) in the presence of the sample to be tested; d) repeating step (b) with the reaction mixture defined in step (c); e) comparing the results of steps (b) and (d).
Type:
Application
Filed:
January 15, 2004
Publication date:
May 11, 2006
Applicant:
Adelbert Bacher
Inventors:
Adelbert Bacher, Petra Adam, Wolfgang Eisenreich, Tobias Grawert, Stefan Hecht, Felix Rohdich, Ferdinand Zepeck