Article
Mutations in transmembrane domains 5 and 7 of the human excitatory amino acid transporter 1 affect the substrate-activated anion channel.
Biochemistry - 28 Aug 2007
Huang Shiwei, Vandenberg Robert J
Abstract excerpt
L-Glutamate is the predominant excitatory neurotransmitter in the brain, and its extracellular concentration is tightly controlled by the excitatory amino acid transporters (EAATs). The transport of 1 glutamate molecule is coupled to the cotransport of 3 Na+ and 1 H+ and the countertransport of 1 K+. In addition to substrate transport, the binding of glutamate and Na+ activates an anion current which is...
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