Raman shifts for the nucleocapsid (N) protein.
| Raman shift (cm−1) | Assignation |
|---|---|
| 373.8 | δ C–C aliphatic chains |
| 419.6 | Tryptophan or histidine |
| 495.2 | S–S bond (β-sheet) |
| 602.1 | Phe |
| 654.5 | Tyr (α-helix) |
| 678.4 | Trp |
| 729.77 | ν-C–C aliphatic chains |
| 783.46 | Histidine |
| 823.8 | Tyr |
| 852.4 | Tyr doublet |
| 862 | β-Sheet Tyr |
| 922.3 | Val–N–Cα–C |
| 975.8 | Trp, Val |
| 1050a | C–N and C–C stretching |
| 1076.7 | ν-C–C aliphatic chains |
| 1107.8 | Histidine, Trp |
| 1219.3 | Phe, ν-C–C aliphatic chains |
| 1248.6a | Secondary amide bands |
| 1266.9 | Amide III |
| 1320.65a | Amide III (α-helix structures) |
| 1390.0a | C–H rocking in lipids |
| 1458.1a | General fatty acids, C–H stretching of glycoproteins |
| 1517.4 | Galactosamine, aromatic rings |
| 1554.9 | Indole ring Trp |
| 1608.0 | Trp, Tyr, Phe |
| 1671.7 | Amide I |
a
Indicates the peaks are also present on the SARS-CoV-2 Raman-SERS spectrum.