TABLE 2.

Binding affinities of initiation sequences to the proteasome and in vivo degradation rate constants of fluorescent substrates (UbL-YFP-tail) in yeast

See Table 1 for definitions of names.

Name	Ki	In vivo degradation rate constant
	μm	min−1
35	36 ± 6	0.071 ± 0.004
ODC	28 ± 3	0.068 ± 0.007
Poly(G)		0.0019 ± 0.0001
GRR	130 ± 20	0.0033 ± 0.003
SRR		0.0022 ± 0.0003
NB	63 ± 12	0.07 ± 0.01
NS	158 ± 3	0.022 ± 0.002
SP1	86 ± 4	0.035 ± 0.004
SP2	322 ± 15	0.0021 ± 0.0001
SPmix		0.0029 ± 0.0001
SNS	133 ± 12	0.0028 ± 0.0003
NBS		0.0063 ± 0.0008
DRR		0.0026 ± 0.0002
eRR	36 ± 5	0.032 ± 0.001
PEST		0.0054 ± 0.0003
Su9		0.099 ± 0.008
No tail		0.0015 ± 0.0002