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. 2001 Oct;10(10):2123–2130. doi: 10.1110/ps.19801

Fig. 5.

Fig. 5.

(A) Far-UV CD spectra of pelC at pH 2 in the presence of increasing amounts of DSS (0.05, 0.1, 0.2, 0.5, 1, 2, 2.5, 3, 3.5, 4, 5, and 10 mM) (the structure is shown as an inset). The inset to A shows the ellipticity values at 200 nm (filled circles) and 215 nm (filled triangles). (B) Far-UV CD spectra of pelC (5 μM) at pH 2 with increasing amounts of 2-naphthalenesulfonate (0.05, 0.2, 0.3, 0.5, 1, 1.2, 1.5, 1.8, 2, 3, and 5 mM). The inset shows the ellipticity values at 200 nm (open circles). The structure of 2-naphthalenesulfonate is also shown as an inset. The poor signal-to-noise ratio near 220 nm is a result of absorption by the naphthalene.