Structure-function relationship of a plant NCS1 member--homology modeling and mutagenesis identified residues critical for substrate specificity of PLUTO, a nucleobase transporter from Arabidopsis.
Witz S, Panwar P, Schober M, Deppe J, Pasha FA, Lemieux MJ, Möhlmann T. PLoS One. 2014; 9(3):e91343. Epub 2014 Mar 12.