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. Author manuscript; available in PMC: 2012 Oct 18.
Published in final edited form as: Biochemistry. 2011 Sep 22;50(41):8792–8803. doi: 10.1021/bi200971x

Figure 4.

Figure 4

EPR spectra obtained from BtuB T156R1 reconstituted into POPC bilayers (top) and from a sample of ~20-30 in-tact protein crystals suspended in crystallization buffer (bottom). The dashed line represents the fit to the POPC spectrum (see Table 3 for the fit parameters). The room temperature crystalline EPR spectrum consists of a single component undergoing fast rotational diffusion on the EPR timescale; the rate and anisotropy of the motion is similar to that for T156R1 in DLPC bilayers. All spectra are 100 Gauss scans.