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Amide UV Raman bands (cm−1) of unordered polypeptides
| YEHK21 denatured | PGA unfolded (this work) | PGA unfolded (57), PPII + extended 2.51-helix | AP unfolded (57), essentially PPII | |
|---|---|---|---|---|
| Am I | 1667 | 1672 | 1673 | 1659 |
| Am II | 1556 | 1560 | 1555 | 1548 |
| CαH(1) | 1392 | 1394 | 1396 | 1399 |
| CαH(2) | 1377 | 1360 weak | 1359 | 1377 broad |
| Am III2 | 1299 | 1315 | 1319 | 1311 |
| ∼1295 | 1298 | |||
| Am III3 (2.51-helix) | 1266 shoulder | 1269 | NA | |
| Am III3 (PPII) | 1246 | 1243 | 1240 | 1247 |
AP, alanine peptide.
