Table 1. Kd values for binding of the E2·E3BP-derived domains to PDK1-PDK4 as detected by fluorescence spectroscopy.
Kd (μM) | DANS-L1 | DANS-L2S | DANS-L1L2S MS1 | DANS-L1L2S MS2 | DANS-L3S’ | Dapoxyl-L3S’ |
---|---|---|---|---|---|---|
PDK1 | 4.43 ± 0.35 | 17.14 ± 0.94 | 2.10 ± 0.12 | 3.62 ± 0.25 | No binding | No binding |
PDK2 | 0.91 ± 0.08 | 1.38 ± 0.03 | 0.89 ± 0.09 | 0.64 ± 0.09 | 0.025a | 2.07 ± 0.06 |
PDK3 | 0.62 ± 0.03 | 1.21 ± 0.06 | 0.54 ± 0.05 | 0.396 ± 0.06 | 0.103a | No binding |
PDK4 | 0.35 ± 0.06 | 2.07 ± 0.16 | 0.27 ± 0.02 | 0.397 ± 0.03 | 5.93 ± 1.06 | 5.02 ± 0.13 |
aOn binding of PDK2 and PDK3 to DANS-L3S’, quenching of the DANS-L3S’ fluorescence was observed while in others enhancement resulted. See SI Experimental Procedures for details.