Comparison of the amino acid sequence of CsMRP4 with short forms of the ABCC subfamily. CsMRP4 was aligned with HsMRP4, 5, 8, 9, and CFTR using MAFFT and rendered using ESPript. Out of the alignment profile, the NBD1 region (a) and NBD2 region (b) were selected for visualization. Red bold and red letters indicate identical and similar amino acid residues, respectively. Conserved sequences are indicated by a box if more than 70% of the residues are similar