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Article
ATP binding drives substrate capture in an ECF transporter by a release-and-catch mechanism
Bacterial energy-coupling factor (ECF) transporters mediate ATP-dependent uptake of essential environmental micronutrients. Biochemical and fluorescence analyses now show that ATP binding promotes release of a...
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Article
Structure and mechanism of a pentameric formate channel
The structure of the formate channel FocA from Vibrio cholerae reveals a pentamer, with each monomer possessing its own substrate translocation pore. The selectivity filter consists of a central constriction ring...
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Article
Antidepressant specificity of serotonin transporter suggested by three LeuT–SSRI structures
Sertraline (Zoloft) and fluoxetine (Prozac) are selective serotonin-reuptake inhibitors (SSRIs) that are widely prescribed to treat depression. They bind to the presynaptic plasma membrane serotonin transporte...