Table 2 Assignment of Raman modes useful in the interpretation of protein structure.

500–550

Disulfide bond

620–640

Phe

644

Tyr

720

C-N stretching

760

Trp

830

Tyr ν-ring

850

Tyr ν-ring

940

νCC (α-helix)

1003

Phe ν-ring

1062

C-C stretching

1250

Amide III (β-sheets, random coil)

1273

Amide III (α-helix)

1309

Amide III (α-helix)

1321

Trp ν-ring

1340

δCH

1360

Trp ν-ring

1450

δasCH₃, δCH₂, δCH

1645–1690

Amide I

1748

C=O stretching

2850

C-H stretching

2880

C-H stretching