Figure 7.

The reaction scheme shows the mechanism postulated for conversion of P2C to picolinate, as discussed in the text. The inset in the bottom right-hand corner shows the positions of FAD and picolinate, in the same orientation as shown in Fig. 3B. Distances (Å) between N(5) of FAD and the indicated atoms in picolinate are shown in magenta. Angles (°) defined by N(5) and N(10) in FAD and the indicated atoms in picolinate are shown in cyan.