Fig 4.
RpMatB crystal structures. (A) Overlay of the RpMatB apo structure (the N-terminal domain is shown in light blue and the C-terminal domain in dark blue), with the structure of the RpMatBK488A/ATP complex (N-terminal domain in light green, C-terminal domain in dark green, and ATP in red). The RpMatBK488A/ATP structure is in the adenylation conformation, whereas in the RpMatB apo structure the C-terminal domain is rotated ∼20°. (B) Close-up view of the active site, highlighting the position of K488 in the apo structure, compared to the homologous residue A488 in the RpMatBK488A/ATP structure.