Figure 1

Multiple amino acid sequence alignment of RACK1 in plants and in humans. The amino acid sequences were aligned by CLUSTALW multiple alignment of BioEdit Sequence Alignment Editor http://www.mbio.ncsu.edu/BioEdit/bioedit.html. Amino acids that are identical or similar are shaded with black or gray, respectively. Gaps are shown as dashed lines. The proteins aligned are (name of species and accession number in parentheses): RACK1A_At (Arabidopsis thaliana, NP_173248), RACK1B_At (Arabidopsis thaliana, NP_175296), RACK1C_At (Arabidopsis thaliana, NP_188441), RACK1A_Os (Oryza sativa, NP_001043910), RACK1B_Os (Oryza sativa, NP_001056254), RACK1_Pt (Populus trichocarpa, ABK92879), RACK1 _Vv (Vitis vinifera, CAN61810), and RACK1_Hs (Homo sapiens, NP_006089). The positions of GH and WD dipeptides in each WD40 repeat are indicated by triangles and asterisks, respectively, on the top of residues. The positions for WD repeat domains were obtained from the SMART database http://smart.embl-heidelberg.de.