1992 Volume 56 Issue 7 Pages 1086-1089
Photolabile precursors (caged compounds) of amino acids such as Ala, Leu, Lys, and Ser were prepared by some simple reactions. These compounds were designed for the rapid, photochemically initiated release of amino acids. These amino acid transporters were expressed in Xenopus oocyte by injecting mRNA prepared from rat kidney. The electrical response of each transporter was examined by applying the amino acids and caged compounds before and after photolysis. Photolysis of the caged amino acids increased the electrical response of the facilitated amino acid transporters expressed in the oocyte. Consequently, these synthesized caged amino acids would be applicable to kinetic investigations on the transporters when combined with a pulsed laser or xenon arc flash lamp.
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