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Influence of 1-methylation upon ρ1 and ρ2 for the Trps in gramicidin channels
It is assumed in this analysis that the ring QCC values remain unchanged on methylation (see “Materials and Methods” for details). The values for the unmethylated Trps are from Ref. 46.
|
Trp
|
ρ1
|
ρ2
|
QCC
|
Me-Trp
|
|
|---|---|---|---|---|---|
| Δρ1 | Δρ2 | ||||
| degrees | degrees | kHz | degrees | degrees | |
| 9 | 37.0 | 23.0 | 155 | +3.5 | +0.5 |
| 11 | 46.0 | 23.5 | 155 | +8.5 | +4.5 |
| 13 | 46.5 | 27.0 | 165 | +3.5 | +1 |
| 15 | 50.5 | 30.5 | 165 | +4.5 | +4.5 |
