ENZYME KINETICS IN A HISTOCHEMICAL SYSTEM
Author(s) -
Earl P. Benditt,
M. Arase
Publication year - 1958
Publication title -
journal of histochemistry and cytochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.971
H-Index - 124
eISSN - 1551-5044
pISSN - 0022-1554
DOI - 10.1177/6.6.431
Subject(s) - serial dilution , substrate (aquarium) , chromogenic , kinetics , chemistry , enzyme kinetics , incubation , incubation period , chromatography , enzyme , analytical chemistry (journal) , mathematics , biochemistry , biology , physics , active site , pathology , quantum mechanics , medicine , ecology , alternative medicine
Modification of the Lineweaver and Burk method of handling the chemical kinetics of an enzyme system has been made to suit the histochemical conditions. Thus if the reaction is allowed to run to some fixed quantity of end point 1/v becomes proportion to the time necessary to reach this end point. In practice serial dilutions of substrate and serial increments in time of incubation are set up. Slides are then separated under the microscope into groups of equal intensity. A plot of 1/[S] v.s. t fits a straight line as expected. Competition between two substrates, one chromogenic the other non-chromogenic, can be demonstrated. One source of deviation from the theoretical due to spontaneous hydrolysis of substrate has been recognized and can be accounted for.
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