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Consensus sequences and evolution of LRR2 protein repeat units. (a) Consensus sequences of LRR2 repeat units. Insertions and deletions are indicated with a gray background. The other background colors indicate conserved residues among repeat units, except for the green background, which represents a composition different from the expected consensus. The hierarchically replicated repeats are underscored. (b) The amplification/deletion history hypothesis of LRR2 repeat units.
