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  • Title: A computer program for analyzing enzyme kinetic data using graphical display and statistical analysis.
    Author: Schremmer SD, Waser MR, Kohn MC, Garfinkel D.
    Journal: Comput Biomed Res; 1984 Jun; 17(3):289-301. PubMed ID: 6547382.
    Abstract:
    A computer program, PENNZYME (M. C. Kohn, L. E. Menten, and D. Garfinkel, Comput. Biomed. Res. 12, 461, 1979), that fits trial rate laws to enzyme and transport steady-state kinetic data by nonlinear regression has been enhanced. The new version includes a set of mnemonic commands which can be displayed in a menu at the user's option. Graphic displays of measured data and computed curves, as well as deviations between them (residual plots) have been added to aid the user in determining if a model is free of bias or systematic error. Other features include the ability to display the variance-covariance matrix of the parameters, to hold individual parameters constant during an optimization, and to optimize error models for the experimental data by the extended-least-squares technique.
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