FIG. 3.
Mass spectrometry of ArCP, PCP, and ACP phosphopantetheinylation. (A) Mass spectrum of ArCPNp. (B) Mass spectrum of phosphopantetheinylated ArCPNp after incubation with PPTNs. (C) Mass spectrum of MPCP. (D) Mass spectrum of MPCP phosphopantetheinylated after incubation with PPTNs. (E) Mass spectrum of ACPNp. (F) Mass spectrum of phosphopantetheinylated ACPNp after incubation with PPTNs.