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Journal for Biophysical Chemistry

Table 2 Assignment of some bands frequently found in Raman spectra of proteins [2428]

From: Polythiophene Synthesis Coupled to Quartz Crystal Microbalance and Raman Spectroscopy for Detecting Bacteria

Band frequency (cm−1)

Assignment

520–540

S–S stretching

640–829–852

Tyrosine

720

Adenine

880–895

CH2 rocking

1,002

Phenylalanine

1,061–1,129

C–N and C–C stretching

1,270–1,310

Amide III

1,340–1,345

Marker of α-helix conformation

1,440–1,460

CH2 deformation

1,553

Tryptophan

1,575

Guanine, adenine (ring stretching)

1,606

Phenylalanine

1,650–1,680

Amide I