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The aligned amino acid sequences of the DBDs (NR123) of human A-, B- and c-Myb. Identical amino acids are marked with black boxes and similar amino acids are marked with grey boxes. The locations of the α-helices determined by NMR (28) are indicated as grey barrels and the flexible region (nascent helix) in R2 is indicated by a dotted barrel. The locations of kinase phosphorylation sites and redox-sensitive cysteines are indicated.
