Identification of intracellular residues in the dopamine transporter critical for regulation of transporter conformation and cocaine binding.

Abstract excerpt

Recently we showed evidence that mutation of Tyr-335 to Ala (Y335A) in the human dopamine transporter (hDAT) alters the conformational equilibrium of the transport cycle. Here, by substituting, one at a time, 16 different bulky or charged intracellular residues, we identify three residues, Lys-264, Asp-345, and Asp-436, the mutation of which to alanine produces a phenotype similar to that of Y335A. Like Y335A,...

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