Structural basis for effector protein recognition by the Dot/Icm Type IVB coupling protein complex

The Legionella pneumophila Dot/Icm type IVB secretion system (T4BSS) translocates effector proteins into host cells, and the recognition of these effectors is mediated by the Dot/Icm type IV coupling protein (T4CP) complex. Here, the authors present the crystal structure of a four-subunit containing T4CP subcomplex bound to the effector protein VpdB, and identify a FxxxLxxxK binding motif that is present in a subset of the effectors and which is recognized by the T4CP adaptor subunit LvgA.

Abstract licence: CC BY-NC-ND

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