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. Author manuscript; available in PMC: 2010 Sep 23.
Published in final edited form as: J Am Chem Soc. 2009 Sep 23;131(37):13212–13213. doi: 10.1021/ja904665x

Figure 2.

Figure 2

Ball and stick figure of the proton relay of mKeima (purple), showing the chromophore, Ser142 and Asp157. Hydrogen bonds are shown as dashed lines with lengths given in Å. The corresponding proton relay of GFP is superimposed in green. The isolated red sphere is a tightly bound water molecule within GFP.