Fig 5.

Overall structure of NarA2B2. (A) NarA2B2 predicted by AlphaFold2 with aligned naphthalene 1,2-dioxygenase from Rhodococcus sp. (PDB: 2B1X); the α-subunit NarA2 is colored in light grey (and green in 2B1X) and the β-subunit NarB2 is dark gray (and cyan in 2B1X). (B) The substrate pocket of NarA2B2, with the surface of NarA2B2 colored in light purple, and the side chain of residues around the active site are shown in sticks. (C) The active site iron center of NarA2B2, distances are given in Å.