Table 2. Single-residue propensities of residues interacting with the C-terminus of EE and EM helix pairs.
Single-residue propensity values for each residue interacting with the C-terminal region of another helix were calculated using (1) (see §2.2). Propensity values greater than 1.1 in all three classes are shown in italics. Propensity values greater than 1.1 in two classes are shown in bold italics. Propensity values greater than 1.1 in only one class are shown in bold.
| Residue | C–C† | C–MID‡ | N–C§ |
|---|---|---|---|
| Gly | 18 (1.01) | 3 (0.20) | 16 (0.78) |
| Ala | 23 (0.86) | 17 (0.78) | 15 (0.44) |
| Val | 25 (1.00) | 18 (0.88) | 19 (0.71) |
| Leu | 68 (1.73) | 40 (1.24) | 27 (0.62) |
| Ile | 27 (1.22) | 23 (1.27) | 19 (0.76) |
| Met | 16 (1.88) | 19 (2.69) | 6 (0.69) |
| Thr | 11 (0.67) | 9 (0.67) | 21 (1.04) |
| Ser | 13 (0.83) | 8 (0.62) | 22 (1.27) |
| Cys | 3 (0.60) | 4 (0.93) | 5 (1.00) |
| Tyr | 15 (1.09) | 12 (1.05) | 18 (1.28) |
| Trp | 9 (1.59) | 8 (1.70) | 11 (1.76) |
| Phe | 17 (1.02) | 22 (1.61) | 19 (1.05) |
| His | 10 (1.20) | 6 (0.88) | 16 (1.92) |
| Arg | 25 (1.38) | 25 (1.69) | 25 (1.14) |
| Lys | 17 (1.04) | 21 (1.56) | 22 (1.14) |
| Glu | 4 (0.21) | 8 (0.51) | 21 (1.05) |
| Asp | 7 (0.46) | 5 (0.39) | 23 (1.43) |
| Gln | 11 (0.94) | 13 (1.37) | 9 (0.77) |
| Asn | 6 (0.53) | 7 (0.76) | 13 (1.15) |
| Pro | 0 (0.00) | 0 (0.00) | 30 (2.19) |
| Total | 325 | 268 | 357 |
Number of residues from the C-terminal region of one helix interacting with the C-terminal region of the second helix; in this class of helix pairs interacting residues from both helices were considered.
Number of residues from the middle region of one helix interacting with the C-terminal region of another helix.
Number of residues from the N-terminal region of one helix interacting with the C-terminal region of another helix.