The Potassium-Uptake Complex KdpFABC (IMAGE)

University of Groningen

The Potassium-Uptake Complex KdpFABC

Caption

This is the potassium-uptake complex KdpFABC. (Left) One of the two cryo-EM structure of KdpFABC. (Right) New proposed mechanism of action for KdpFABC reveals a so-far unprecedented chimeric transport, where an ion pump has hijacked an ion channel. Here, potassium ions are attracted from the outside by the high-affinity and high-selective channel-like subunit (KdpA in green), redirected via an intermembrane tunnel to the P-type subunit (KdpB in brown), and from there released to the cytoplasm.

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University of Groningen

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