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. 2019 Nov 23;11(2):124–137. doi: 10.1007/s13238-019-00671-z

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Substrate-specific recognition of EccCb1-ATPase₃fromMycobacterium tuberculosisand EccC-ATPase₃fromThermomonospora curvata. (A) (Upper left) A cartoon image of MtEccCb1-ATPase₃ (pale green) in complex with MtEsxB (yellow). (Upper right) The same complex but shown as an electrostatic surface. (Bottom image) A zoom-in view of the interactions at binding pocket. N/C, the N-/C-terminal end of peptide. (B) (Upper left) A cartoon image of TcEccC1-ATPase₃ (wheat) in complex with the C-terminal region of TcEsxB (pale cyan) (PDB code: 4N1A). (Upper right) The same complex but TcEccC1-ATPase₃ is shown as an electrostatic surface. (Bottom image) A zoom-in view of the interactions at binding pocket. (C) Schematic diagram of the interactions between MtEccCb1-ATPase₃ and MtEsxB at the recognition pocket. (D) Schematic diagram of the interactions between TcEccC1-ATPase₃ and TcEsxB at the recognition pocket