Identification and characterization of the conserved motifs in the amino acid permease (AAP) proteins in Arabidopsis thaliana and Brassicanapus. Molecular identification (a) and sequence characterization (b) of the conserved motifs in the AAP proteins in A. thaliana and B. napus. In a,the boxes with different colors indicate different conserved motifs (motif 1–15), and grey lines represent the AAP protein regions withoutdetected motifs. Aa_trans indicates the amino acid transport regions; SCL5–6-like_sbd refers to the solute carrier (SCL) families 5 and 6-likeproteins with solute binding domain (sbd). In b, the larger the fonts, the more conserved the motifs