Fig. 1

Sequence conservation of the conserved domain of AP2/ERF and R2R3-MYB proteins. a The sequence logos based on sequence alignments of AP2 domains of representative AP2/ERF proteins in Arabidopsis and all AP2 domains in A. protothecoides. The α-helix region and three β-sheets regions were shown. b The sequence logos based on sequence alignments of R2 and R3 MYB repeats of all R2R3-MYB proteins in A. protothecoides. The helix and helix-turn-helix domains that form each MYB repeat were labeled. The stars denote the typical, conserved tryptophan residues (W) in the MYB domain. The bit scores within each stack indicate the relative frequency of each amino acid at that position