CPA Affinity (K1/2) of E127/K519 Combinatorial Mutants
. | −160 mV . | −140 mV . | −120 mV . | −100 mV . | −80 mV . | −60 mV . | −40 mV . |
|---|---|---|---|---|---|---|---|
| E127/K519a | 0.026 ± 0.001b | 0.038 ± 0.001 | 0.061 ± 0.002 | 0.104 ± 0.003 | 0.186 ± 0.007 | 0.349 ± 0.015 | 0.581 ± 0.094 |
| E127Q/K519 | 0.015 ± 0.002 | 0.021 ± 0.002 | 0.033 ± 0.003 | 0.057 ± 0.004 | 0.113 ± 0.010 | 0.228 ± 0.023 | 0.491 ± 0.058 |
| E127/K519M | 0.051 ± 0.004 | 0.069 ± 0.004 | 0.098 ± 0.004 | 0.141 ± 0.005 | 0.194 ± 0.004 | 0.271 ± 0.005 | 0.378 ± 0.007 |
| E127/K519E | 0.115 ± 0.025 | 0.158 ± 0.031 | 0.203 ± 0.034 | 0.277 ± 0.037 | 0.377 ± 0.039 | 0.516 ± 0.046 | 0.730 ± 0.059 |
| E127Q/K519M | 0.022 ± 0.002 | 0.031 ± 0.002 | 0.047 ± 0.003 | 0.075 ± 0.003 | 0.132 ± 0.006 | 0.240 ± 0.013 | 0.457 ± 0.030 |
| E127Q/K519E | 0.044 ± 0.005 | 0.062 ± 0.005 | 0.087 ± 0.006 | 0.123 ± 0.009 | 0.198 ± 0.014 | 0.327 ± 0.024 | 0.586 ± 0.052 |
. | −160 mV . | −140 mV . | −120 mV . | −100 mV . | −80 mV . | −60 mV . | −40 mV . |
|---|---|---|---|---|---|---|---|
| E127/K519a | 0.026 ± 0.001b | 0.038 ± 0.001 | 0.061 ± 0.002 | 0.104 ± 0.003 | 0.186 ± 0.007 | 0.349 ± 0.015 | 0.581 ± 0.094 |
| E127Q/K519 | 0.015 ± 0.002 | 0.021 ± 0.002 | 0.033 ± 0.003 | 0.057 ± 0.004 | 0.113 ± 0.010 | 0.228 ± 0.023 | 0.491 ± 0.058 |
| E127/K519M | 0.051 ± 0.004 | 0.069 ± 0.004 | 0.098 ± 0.004 | 0.141 ± 0.005 | 0.194 ± 0.004 | 0.271 ± 0.005 | 0.378 ± 0.007 |
| E127/K519E | 0.115 ± 0.025 | 0.158 ± 0.031 | 0.203 ± 0.034 | 0.277 ± 0.037 | 0.377 ± 0.039 | 0.516 ± 0.046 | 0.730 ± 0.059 |
| E127Q/K519M | 0.022 ± 0.002 | 0.031 ± 0.002 | 0.047 ± 0.003 | 0.075 ± 0.003 | 0.132 ± 0.006 | 0.240 ± 0.013 | 0.457 ± 0.030 |
| E127Q/K519E | 0.044 ± 0.005 | 0.062 ± 0.005 | 0.087 ± 0.006 | 0.123 ± 0.009 | 0.198 ± 0.014 | 0.327 ± 0.024 | 0.586 ± 0.052 |