Figure 1

Analysis of the amino acid sequence of OsCLP. A, phylogenetic tree for plant chitinases and xylanase inhibitors. All amino acid sequences were retrieved from the National Center for Biotechnology Information (NCBI) database. B, amino acid sequences of XIs were obtained from the NCBI data bank (http://www.ncbi.nlm.nih.gov/) with the accession numbers: Oryza sativa OsCLP (BAB89707), Triticum aestivum TAXI 801OS (ABU55396), Triticum aestivum TAXI-IV (BAD72882), Secale cereal ScXI (CAE46333), and Triticum aestivum TAXI-I (BAD72880). Alignment was done using the BioEdit program and shaded by boxshade. Identical amino acids are shaded in black and similar ones are shaded in gray. The signal peptide region is indicated with lines. The inverted triangles indicate the beginning and end of the xylanase inhibitor I-like domain. The protein-protein interaction site is indicated with a star.