Lactose monohydrate is a type of sugar found in milk. Due to its chemical structure, it’s processed into a powder and used as a sweetener, stabilizer, or filler in the food and pharmaceutical ...

Kaback and his colleagues recently captured the three-dimensional structure of lactose permease (LacY), which moves lactose across the cell membrane of E. coli, a common bacterium.

For example, the general structure of lactose repressor has been known for some time, but questions have remained about how it flexes and moves inside a living cell.

For example, the general structure of lactose repressor has been known for some time, but questions have remained about how it flexes and moves inside a living cell.

UCLA physiologist H. Ronald Kaback recently solved the three-dimensional structure of lactose permease (LacY), which moves lactose across the cell membrane of E. coli.

Lactose permease (LacY) of Escherichia coli stands as a prototype of the major facilitator superfamily, employing the energy of a proton gradient to mediate the uptake of sugars against their ...