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. 2002 Oct;130(2):577–590. doi: 10.1104/pp.009175

Figure 1.

Figure 1

Relationship tree based on the catalytic domain of the Arabidopsis Ser/Thr protein kinases. The sequence-based relationship between AtSK, AtMAP3K, and AtMAP4K, compared with the other groups of S/T kinases, is presented in the tree. In bold are indicated the major groups of S/T kinases, i.e. the receptor-like kinases (RLK) and the RAF kinases (standard characters), as well as the non-receptor S/T kinases, such as CMGC, AGC, CaMK, and STE (comic characters), as defined by Hunter and Plowman (1997). The 10 AtSK genes, the two AtMAP3Kεs, and the two AtMAP4Kαs are typed in bold small characters. The distance tree was constructed using the neighbor-joining method (Saitou and Nei, 1987) via the ClustalX program. We rooted the tree using the sequences of Arabidopsis RLK. The tree, including 52 RAF and 316 non-receptor S/T kinases, has been simplified. The bootstrap values of 100 replicates are only indicated for the AtSK, the AtMAP3Kε, and the AtMAP4Kα proteins.