Figure 3From: Biosynthesis of the proteasome inhibitor syringolin A: the ureido group joining two amino acids originates from bicarbonateHPLC analysis of syringolin A content in conditioned SRM AF media. Conditioned media were sterile-filtrated and 20-μl-aliquots were loaded on the column. Absorption was monitored at 206 nm. Labels of HPLC traces are the same as in the legend to Figure 2B.Back to article page