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. Author manuscript; available in PMC: 2012 Nov 18.
Published in final edited form as: ACS Chem Biol. 2011 Sep 15;6(11):1277–1286. doi: 10.1021/cb2002973

Figure 2.

Figure 2

HPLC profile of extracted culture supernatants and enzymatically cleaved supernatant. Experimentally determined m/z ratios of the major peak and expected chemical structures are shown. Because much less pyoverdine precursor is produced from the mutant cell line compared to mature pyoverdine from the wild-type cells, the HPLC runs of pvdQ mutants used approximate seven times more sample. The chemical nature of the peaks at retention times 37–38 min of both wild-type and mutant samples are unknown.