Table 3.

Apparent rates of dipeptide formation

Preassembled complex	Start codon	kapp, s−1
		WT	ΔH69	Δloop	Δloop+4
30SIC	AUG	0.34 ± 0.04	0.018 ± 0.003	0.087 ± 0.011	0.085 ± 0.02
	AUC	0.017 ± 0.005	0.0025 ± 0.0006	0.0077 ± 0.0033	0.0068 ± 0.0013
30SIC-IF3	AUG	0.82 ± 0.13	0.20 ± 0.02	0.14 ± 0.02	0.16 ± 0.02
	AUC	0.62 ± 0.26	0.16 ± 0.03	0.12 ± 0.01	0.10 ± 0.01
70SIC	AUG	2.0 ± 0.3	0.032 ± 0.006	0.14 ± 0.01	0.17 ± 0.05
70SIC-IF1	AUG	1.7 ± 0.3	0.038 ± 0.004	0.14 ± 0.01	0.16 ± 0.02
70SIC-IF3	AUG	1.9 ± 0.1	0.44 ± 0.14	0.19 ± 0.05	0.18 ± 0.03
70S	AUG	2.9 ± 0.6	1.8 ± 0.1	1.4 ± 0.3	1.3 ± 0.3