Data for Chymotrypsin catalzyzed hydrolysis of GPNA --> p-nitroaniline + N-glutaryl-L-phenylalanine

Derived K_m =  12.3 M (from intercept on x-axis, or from slope of line) and v_max= (1/ 0.076) = 13 M min^-1

Data from Chang (Physical Chemistry, p. 557)