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. 2023 Oct 13;14(5):e02135-23. doi: 10.1128/mbio.02135-23

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Fig 1 — Structural organization of BB0238. (A) Schematic representation of full-length BB0238 depicting a signal sequence, with N-terminal and C-terminal domains, and the known interaction site with BB0323. The region encompassing the TPR-like motif, herein denoted as helix-turn-helix region (TPR/HTH), is also indicated. (B) Crystal structure of B. burgdorferi BB0238_132-256 (PDB ID 8P33). The structure is spectrum-colored from blue at the N-terminus to red at the C-terminus. (C) A model of full-length BB0238 as predicted by AlphaFold2. The cartoon is shown with coloring according to pLDDT values, with red corresponding to the lowest confidence and blue to the highest confidence. (D) Crystal structure of B. burgdorferi BB0238_132-256 (gray) superimposed with the AlphaFold model of BB0238_24-256 (orange). All α-helices (αA-αF) and β-sheets (βA-βH) are labeled.