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Comput Biol Med. 1988;18(2):135-44.

A microcomputer program for fitting two-substrate enzyme rate equations.

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Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Brasil.


This paper describes a microcomputer program written in BASIC for fitting different two-substrate enzyme kinetic mechanisms. The present program is a complement of one which was recently published and was developed to fit different models of enzyme inhibition. The complete program resulting from this complementation allows the fitting of the most usual rate equations found in steady-state studies of enzyme kinetics. The program based on a non-linear least-squares regression, can be run on any microcomputer having the CP/M operating system. The initial rate equation for a steady-state random bisubstrate mechanism was chosen to evaluate the performance of the program, with contrived data of known error structure.

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