Sequence information of RBP-L. A, Schematic structure of RBP-L. B, Protein sequence alignment of RBP-L to RBP45/47 family members from Arabidopsis and tobacco. The three RRMs are indicated by the red line above the sequences. The conserved (shared by all protein sequences) and semiconserved (shared by six out of nine protein sequences) amino acids are highlighted in green and magenta, respectively. P/Q rich, Pro- and Gln-rich domain; G-rich, Gly-rich domain; a.a., amino acids.