Table 1.
List of compound sequences and summary of Kd values against YopH-NT determined by 2D NMR titrations and/or ITC.
| ID | Ac-Peptide sequence-NH2 | Kd value (μM) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| P-1 | P0 | P1 | P2 | P3 | P4 | P5 | YopH NT by NMR | YopH NT by ITC | |
| 1 | D | E | pY | D | D | P | F | nd | 0.18 |
| 2 | pY | cPG | D | 17.29 | 6.60 | ||||
| 3 | D | E | pY | cPG | D | P | F | nd | 0.18 |
| 4 | pY | cPG | D | I | 1.47 | 4.40 | |||
| 5 | pY | cPG | D | F | 1.66 | 5.50 | |||
| 6 | pY | cPG | D | K | 62.69 | 14.20 | |||
| 7 | pY | cPG | D | D | 4.93 | 6.50 | |||
| 8 | pY | cPG | D | P | nd | 1.40 | |||
| 9 | I | pY | cPG | D | 10.47 | 10.90 | |||
| 10 | F | pY | cPG | D | 6.06 | 9.30 | |||
| 11 | K | pY | cPG | D | 127.60 | nb | |||
| 12 | D | pY | cPG | D | 21.67 | 16.20 | |||
| 13 | I | pY | cPG | D | P | nd | 0.52 | ||
| 14 | F | pY | cPG | D | P | nd | 0.31 | ||
| 15 | F | pY | cPG | W | P | nd | 3.10 | ||
The amino acid abbreviation pY stands for phosphorylated tyrosine, cPG stands for cyclopentyl glycine. nd indicates not determined; nb indicates no binding detected at the used experimental conditions. In each peptide, the N-terminus was acetylated and the C-terminus amidated.