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. Author manuscript; available in PMC: 2008 Aug 20.
Published in final edited form as: Biochemistry. 2006 Oct 24;45(42):12756–12766. doi: 10.1021/bi061169d

Figure 4.

Figure 4

Phosphopantetheinyl fragment ions observed on the ACP2 of MycA upon incubation of acetoacetyl-S-MycA-ACP2 with Gln. A and C) the two phosphopantetheinyl elimination reactions of acetoacetyl-S-MycA-ACP2, B and D) the two phosphopantetheinyl elimination reactions of acetoacetyl-S-MycA-ACP2 treated with glutamine to form β-aminobutyryl-S-MycA-ACP2.