Fig. 4.
FTIR spectra of Hfq-CTR in the presence or absence of DNA. (a) peptides alone. (b) difference spectrum obtained by subtracting the (dA:dT)59 contribution from the complex spectrum. We clearly observe in the Amide I band a contribution at ∼ 1620 cm−1, indicative of the formation of the amyloid structure in the presence of DNA.