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Probing the Informational and Regulatory Plasticity of a Transcription Factor DNA–Binding Domain

Figure 3

Sequence logos of natural and selected variants of the MarA binding domain.

The sequence logos show the degree of variability at residues 42, 45 and 46 in functional binders selected against different binding sites. ‘Natural’ is the natural variability in positions 42, 45 and 46 for MarA homologues. ‘GCA’, ‘GAA’ and ‘GAC’ designate which sequence the binding domain was selected against. These logos are made from the sequences in Table 1.

Figure 3