Figure 8.

Cartoon representation of the three-dimensional models of the crystal structures of (A) TtProDH ΔABC and (B) TtProDH (PDB entry 2G37). In the top panels, the flavin cofactors are coloured by B-factor. N-terminal helices αA, αB, and αC and the C-terminal α8 are coloured in yellow and magenta, respectively, in TtProDH and are missing in TtProDH ΔABC. The bottom panels show the H-bond network contributing to stabilisation of the cofactor. Involved residues are labelled and represented as CPK sticks and flavin cofactors show their Cα in pale yellow. Water molecules are depicted as red spheres.