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. Author manuscript; available in PMC: 2013 May 23.
Published in final edited form as: J Am Chem Soc. 2012 May 8;134(20):8693–8702. doi: 10.1021/ja3026328

Figure 2.

Figure 2

Effects of Cu(II) binding on the NMR spectra of POPC bilayers. (a) 31P and 13C spectra without (top) and with (bottom) Cu(II) at the 1: 15 Cu(II): lipid molar ratio. The 31P signal is quenched by T2 PRE and the glycerol and headgroup 13C signals show line broadening and small pseudocontact shifts for G3 and Cα. (b) 13C T1 relaxation curves of G3. (c) 13C T1 PRE for lipid functional groups from the bilayer surface to bilayer center, showing monotonically decreasing Γ1.