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. Author manuscript; available in PMC: 2009 Oct 7.
Published in final edited form as: Biochemistry. 2008 Sep 12;47(40):10694–10704. doi: 10.1021/bi800533t

Figure 1.

Figure 1

Structural map of PA. (A) Primary amino acid structure of PA highlighting domains 1 (pink), 2 (green), 3 (yellow), and 4 (blue). Proteolytic fragment PA20 consists of amino acids 1–167 and is italicized. Residues found to be oxidized in this study are in red and bold type, and tryptic fragments containing those residues are shown in brackets. Amino acid coverage by MS/MS analysis is shown with a dashed underline. (B) The 2.1 Å three-dimensional crystal structure of PA [PDB entry 1ACC (18)] with each of its four domains colored as in panel A. The disordered loop that forms part of the transmembrane stem domain (residues 302–325) is shown as a dashed line.