Figure 1. X-ray crystal structure of the complex formed from anaerobic interaction of ACβFV 3 with IPNS, to 1.30 Å resolution.

(A) The two substrate orientations are shown separately in light and dark grey with a 7:3 occupancy ratio respectively. (B) The isopropyl region of ACβFV-derived product (light grey) overlaid with ACV (dark grey) for comparison (note the planarity in the electron density about the β-carbon of the ACβFV-derived structure). The 2mF_o-DF_c electron density map is contoured at 1.0σ.