Table 3 Assignments of the main spectral bands in the infrared spectra of proteins [23, 24]
Position (cm−1) | Assignment |
|---|---|
3400 | N–H stretching |
3300 | O–H stretching |
1656 | Amide I (C=O stretching) |
1540 | Amide II (protein N–H bending, C–N stretching) |
1453 | C–H deformation vibration |
1396 | COO– stretching |
1313 | CH2 deformation |
1244 | CH2 deformation |
1169 | Side chain |