FIGURE 5.
Fo − Fc omit map of CoA (A) and BmA2 (B and C) and their surrounding residues. As shown in A, the linear part of a CoA molecule is inserted into the tunnel formed in the N-terminal domain of BAT, and its adenosine moiety is positioned at the narrow entrance of the tunnel. The DNA-binding domain of Bm is accommodated in the canyon-like groove formed by the interface of two C-terminal domains of BAT (C), whereas the metal-binding domain of Bm is bound to the funnel-like entrance of the tunnel and its β-aminoalanine moiety is deeply inserted into the tunnel (B). The carbon atoms from each monomer are shown in orange and cyan. The electron density was contoured at 3 σ (blue).