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. 2011 Dec 30;287(9):6642–6654. doi: 10.1074/jbc.M111.322917

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© 2012 by The American Society for Biochemistry and Molecular Biology, Inc.

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FIGURE 4. — Quaternary structure organization of DgAS (PDB code 3UCQ). Panel A, visualization of the DgAS dimer. The protomers are symmetry-related following a 2-fold crystallographic symmetry. Panel B, structural superimposition of DgAS (purple) and NpAS (PDB code 1G5A (18)) (green) monomeric units. Structural elements involved in the dimeric interface of DgAS involve 7 regions of domains N, A, and C. The amino acid sequences composing the 7 regions are listed. Panel C, sequence alignment of DgAS, DrAS, and NpAS. The 7 regions are shown on the alignment using the same color code as in panel B.