Figure 4

Alignments of the N- and C- terminal end sequences of the B-block binding proteins, which are compared with the HMG box sequences. Gaps were inserted into the sequences by visual inspection to relate the positions of the conserved basic and aromatic residues and the locations of the α-helices between the alignments. The amino acid residues common among the three alignments are shown in boldface. A. Alignment of the N-terminal end sequences. Above the amino acid sequences, are the secondary structures predicted from them, where H, E, and C represent helix, strand, and coil respectively. B. Alignment of HMG boxes. The identification codes for PDB entries http://www.rcsb.org/pdb/index.html are shown to the left. The regions shown by black characters form α-helices (see http://www.rcsb.org/pdb/index.html). C. Alignment of the C-terminal ends, with the predicted secondary structures shown above the amino acid sequences.