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. Author manuscript; available in PMC: 2014 Jun 8.
Published in final edited form as: J Biomol NMR. 2013 Apr 28;56(2):155–167. doi: 10.1007/s10858-013-9732-z

Fig. 5.

Fig. 5

2D 13C-13C correlation maps of sidechain-carbonyl-containing Glu and Gln. Despite the similarity of their chemical shifts, the 36–40 ppm region is uniquely Glu Cβ (gray bars). Chemical shifts above 180 ppm generally result from Cδ