Journal Article Arabidopsis Proteins Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Amino Acid Transport Systems Amino Acids Arabidopsis thaliana Amino acid transporter Amino acids Arabidopsis DNA-Binding Proteins LXCXE NAC domain Plant Proteins RBR1 protein, Arabidopsis Saccharomyces cerevisiae Trans-Activators Transcription Factors UMAMIT14 protein, Arabidopsis XND1 protein, Arabidopsis angiosperm differentiation facilitator heterologous expression membrane export membrane transport nitrogen phloem phylogeny retinoblastoma