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Figure 3 | BMC Structural Biology

Figure 3

From: Engineering of PA-IIL lectin from Pseudomonas aeruginosa – Unravelling the role of the specificity loop for sugar preference

Figure 3

Difference electron density maps at mutated residues. Electron density maps 2fo-fc (contoured at 1.0 sigma, in blue) and fo-fc (contoured at 3.0 sigma in green and -3.0 sigma in red) around the specificity binding loop amino acids 22–23–24, generated after molecular replacement with the structure of native wild type protein. (A) S22A complexed with Me-α-Man (with alternative conformations of Ser23), (B) S23A complexed with Me-α-Fuc, (C) G24N complexed with Me-α-Man.

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