A program for the numerical integration of enzyme kinetic equations using small computers.

A simple program to integrate differential equations is given. The program is written in BASIC and has been devised to be used on small computers. The program has been used to integrate the differential equations corresponding to a single reaction-single enzyme, a bireaction-single enzyme and a four reaction-four substrate-single enzyme mechanism; it has been used also for studying the interconversions among various molecular forms of a single enzyme, viz. monomer - dimer - trimer - tetramer. The program has proven to be very effective in these models and its time consumption comparable with that of other longer programs. The BASIC version is shown, and the FORTRAN VS version is available upon request to the authors.