Alignment of the amino acid sequences of NCBD binding proteins. Conserved amino acids are colored according to type: hydrophobic residues (Ala, Val, Ile, Leu, Met, Phe, and Tyr) are shown in shade of yellow and negatively charged residues (Asp, Glu) in red. The conserved motifs (φXXφ or φXXφφ) are shown over the sequence alignment. Alpha-helical regions of p53 TAD and ACTR in the complex with NCBD are shown over the alignment and under the alignment, respectively.