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A3. Transport of Sugars

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    5585
  • [ "article:topic", "authorname:jjakubowskih", "license:ccbyncsa" ]

    Lactose - Lactose can be transported into E. Coli against a concentration gradient using galactoside permease, one of the proteins encoded by the lac operon. This protein uses a proton-motive force to pump lactose into the cell. The proton gradient is created by an electron transport complex in the membrane which is inhibited by cyanide, reminiscent of the cytochrome C oxidase complex in oxphos.

    Figure: Lactose Transport

    Glucose - Glucose can be transported into brush border cells lining the small intestine powered by a sodium-motive symport transporter.

    Figure: Glucose Transport

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