Figure 3.

Crystal structure of BfFeoA.A, similar to other FeoA proteins structurally characterized, BfFeoA adopts an SH3-like fold, which is characterized by a small β-barrel. B, like observed in the structure of KpFeoA (PDB ID 6E55), BfFeoA contains a “C-shaped” clamp region lined with hydrophobic residues (shown in ball and stick), composed of Phe²³, Ile²⁷, Met³⁰, Ile⁵⁹, and Leu⁶¹. This view represents a 100° rotation about the y-axis and a 40° rotation about the x-axis of panel A. Labels ‘N’ and ‘C’ refer to the N- and C-termini, respectively. Figure created with BioRender.