TABLE 1.
Peptides | Sequence | Theoretical Mav | Measured Mava | Charge | Hb |
KV | KIGKVL-NH2 | 655.87 | 655.89 | +3 | –c |
KV2 | KIGKVLLVKGIK-NH2 | 1,294.72 | 1,294.75 | +5 | 0.457 |
KV3 | KIGKVLLVKGIKKIGKVL-NH2 | 1,933.57 | 1,933.54 | +7 | 0.457 |
RV3 | RIGRVLLVRGIRRIGRVL-NH2 | 2,101.65 | 2,101.64 | +7 | 0.450 |
KF3 | KIGKFLLFKGIKKIGKFL-NH2 | 2,077.70 | 2,077.67 | +7 | 0.552 |
KW3 | KIGKWLLWKGIKKIGKWL-NH2 | 2,194.81 | 2,194.78 | +7 | 0.628 |
RF3 | RIGRFLLFRGIRRIGRFL-NH2 | 2,245.78 | 2,245.78 | +7 | 0.545 |
RW3 | RIGRWLLWRGIRRIGRWL-NH2 | 2,362.89 | 2,362.88 | +7 | 0.622 |
aMolecular average mass (Mav) was measured by electrospray ionization mass spectrometry (ESI MS). bHydrophobicity (H) was calculated using the online program HeliQuest (http://heliquest.ipmc.cnrs.fr/cgi-bin/ComputParamsV2.py). cHydrophobicity (H) of KV was not available due to the shorter chain length than minimum chain length required for calculation.