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. 2019 Aug 16;116(35):17147–17155. doi: 10.1073/pnas.1902026116

Fig. 1.

Fig. 1.

Known mechanisms of hydrophobic substrate transfer across the periplasm. Cartoon depictions of hydrophobic substrate transfer across the periplasm. Black arrows indicate energy-dependent processes. Red arrows represent transfer that must occur without energy. (A) Lpt-mediated transfer of LPS. (B) Lol-mediated transfer of lipoproteins. (C) Chaperone-mediated transport of hydrophobic proteins.