Structure of wild-type GFP (1EMA). The region 128–141 (129–142 in sgGFP) explored in this study is shown in yellow. N-terminal and C-terminal are marked with capital letters and the chromophore located in the center of the barrel is also shown in yellow.
Flores-Ramírez et al. BMC Chemical Biology 2007 7:1 doi:10.1186/1472-6769-7-1