TABLE 2.
Dissociation constants of the different forms of eIF4E with their ligands
eIF4E form |
Kd (106 mol/liter)
|
||
---|---|---|---|
m7GTP | VPg | pep4G | |
eIF4E0 | 0.25 ± 0.01 | 0.27 ± 0.03 | 0.11 ± 0.01 |
eIF4G-binding mutants | |||
E91A | NDa | ND | 0.23 ± 0.01 |
G156A | ND | ND | 0.30 ± 0.01 |
E157A | ND | ND | 0.43 ± 0.02 |
Outer-surface mutants | |||
R82L | 0.41 ± 0.03 | 1.28 ± 0.07 | ND |
F65A | 0.75 ± 0.05 | 2.41 ± 0.14 | ND |
A174P | 1.56 ± 0.17 | 14.1 ± 2.3 | ND |
ND, not determined.