Figure 2
From: The CaaX specificities of Arabidopsis protein prenyltransferases explain era1 and ggb phenotypes

Substrate specificity of recombinant Arabidopsis PFT. Quantitative filter assay data are shown for recombinant Arabidopsis PFT in the presence of [1-3H]FPP, [1-3H]GGPP, and 32 distinct GFP-BD-CaaX substrates. The CaaX substrates are grouped with the variable amino acid indicated in red. Asterisks indicate PFT-catalyzed protein geranylgeranylation detectable after 4 days by SDS-PAGE and fluorography. The red line indicates background. The standard error of the mean is shown.