Table 2.

K_M and K_cat values from non-linear regression of the data in Fig. 2c

	INCENP	Kcat (103 s−1)	Km(peptide) (μM)
AURKB	w.t.	50.8 ± 1.5	10.8 ± 1.5
	S893A	50.1 ± 0.9	75.5 ± 3.6
	S894A	32.9 ± 0.7	90.6 ± 4.7
	W897A	51.9 ± 1.2	47.1 ± 3.2
AURKC	w.t.	48.8 ± 2.3	18.7 ± 3.6
	S893A	46.3 ± 1.4	83.0 ± 6.1
	S894A	38.8 ± 0.6	83.0 ± 3.1
	W897A	41.8 ± 0.9	25.1 ± 1.9

Note: The data shown are the best-fit values ± standard error