Figure 1.

Similarity between proteins with twin trihelix DNA-binding motifs. (A) Amino acid sequence comparison between the predicted GTL1 protein (AT-GTL1) and GT-2 from Arabidopsis (AT-GT2) and rice (OS-GT2). The analysis was performed by using the pileup program of the General Computer Group package, and sequence identity was displayed using seqvu 1.0. Gray boxed sections represent the amino-terminal and carboxyl-terminal DNA-binding motifs whereas the solid boxed amino acids belong to the conserved central domain. (B) Schematic representation of the sequence comparison depicted in A. Gray boxes represent the amino-terminal (NT) and carboxyl-terminal (CT) DNA-binding motifs. The conserved central domain (CD) is indicated in black. Length of proteins is displayed on the right-hand side. The scheme of the AT-GTL1 protein is presented twice to enable a clear display of the amino acid identity levels.