Table 1. Assignment of the Main Protein Bands Present between 1700 and 1315 cm–1 a.
| cm–1 | assignment |
|---|---|
| 1695 | amide I, β-sheets50 |
| 1666 | amide I, turns54 |
| 1636 | δ(O–H), water33,34 |
| 1637 | amide I, β-sheets50 |
| 1624 | amide I, β-sheets, aggregates29,30,55−57 |
| 1549 | amide II, unordered58,59 |
| 1503 | amide II, β-sheets, aggregates59−61 |
| 1434 | δas(CH3), β-sheets50,54 |
| 1388 | δS(CH3), Ala, Val50,51 |
| 1332 | δ(CH)51,52 |
| 1301 | w(CH2), Gly51 |
| 1217 | amide III, β-sheets50,62 |
| 1066 | υ(C–O–C), polysaccharides53 |
a
δ is for bending; υ is for stretching; w is for wagging.