Identification of a New SBP Protein Subfamily
(A) Close-up of the superposition of the EF hand-like motif shown in sticks, highlighting the polar residue oriented toward the permease.
(B and C) Superposition of FusA, AlgQ1 (PDB: 1Y3N), AlgQ2 (PDB: 1J1N), and Blon_2351 (PDB: 3OMB) structures: the ribbon models, viewed at the indicated orientations, are colored using rainbow colors (blue to red from the N to C termini). FusA is shown with cylindrical helices.
(D) Sequence and secondary structure alignment of FusA, AlgQ1, AlgQ2, and Blon_2351 colored according to their conservation using ESPript (Robert and Gouet, 2014).