Archaeal glutamate transporter homologs catalyze the coupled uptake of aspartate and three sodium ions ... Here, we report a crystal structure of the substrate-free transporter Glt Tk from ...

This coupling mechanism is still poorly understood, in part because the available crystal structures of these ... between the binding of three sodium ions and aspartate takes place.

One alternative to polyacrylic acid is polyaspartate polymers ... Solutions have joined to develop a process to make aspartic acid, the raw material for the polymers, from sugar via fermentation.