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. 2013 Mar 6;8(3):e58298. doi: 10.1371/journal.pone.0058298

Figure 3. The apo-AstC structure.

Figure 3

Figure 3A shows the superposition of apo-AstC protomer B (burnt orange) on protomer A (cyan) without PLP present in the structure. The N-terminus at the top right and the first 20 residues of protomer B are not modelled due to a lack of electron density for these residues. The other clear difference shown in 3A is loop 142–163, which is missing in protomer B (lower right). An approximate 90 degree rotation in 3B highlights the missing loop of residues 274–283 (lower left side of 3B).