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. 2002 Jul 1;99(14):9090–9092. doi: 10.1073/pnas.152330799

Figure 1.

Figure 1

Arabidopsis LRR-RLKs and tomato SR160. Protein kinase domains (222) defined by Pfam PF00069.hmm from LRR protein kinases (222) in Arabidopsis genome were aligned with tomato SR160 protein kinase domain by HMMER (27). A neighbor-joining tree was created for the protein kinase domain alignments by MEGA (28). The tree was tested by bootstrapping with 1,000 replications. The branch that includes brassinosteroid receptor BRI1, tomato systemin receptor SR160, and three BRI1-like proteins is indicated by an arrow and a bracket and shown in more detail in Fig. 2.