Figure 2
From: Structure and function of a cyanophage-encoded peptide deformylase
(a) Inhibition of the Synechococcus phage S-SSM7 PDF (blue) and the PDF from Synechococcus elongatus PCC 6301 (red) by actinonin. Enzyme: 0.2 nM PDF. Substrate: 1.5 mM fMLIS, the N-terminal tetrapeptide of the D1 protein encoded by the phage. (b) Kinetic assays comparing the activity of the Synechococcus phage S-SSM7 PDF (blue) with that from S. elongatus PCC 6301 (red) on three different N-terminal tetrapeptide substrates derived from phage or bacterial D1 proteins (see Table 1). Red square=phage D1, fMLIS; solid red circle=bacterial D1, fMTSI; open red circle=bacterial D1, fMTTA.
