FIG. 8.

Genes involved in amino acid transport that are regulated by the T-box mechanism. The common designation for each class of transporter gene is shown inside each arrow. Genes that have not been annotated were labeled based on their corresponding COG numbers (i.e., a gene that belongs to COG4166 is drawn as an arrow with the number “4166”). Note that genes are named in accordance with the GenBank annotation and might not represent the real specificity of the transporter as revealed by the identification of the specifier codon in our T-box analysis. Organism abbreviations and gene color codes are described in the legends of Fig. 2 and 3.