Table 1: Comparison of goodness of fit for different models with the help of AIC.

Type of modelqfAIC

(i) phosphotransfer by the monomer821. 1 3 1 0 4 194

(ii) phosphotransfer by the doubly phosphorylated dimer86 1 . 0 8 1 0 4 202

(iii) phosphotransfer both by doubly and by singly phosphorylated dimer879446185

(iv) phosphotransfer by all forms of EI90516179