Fig. 3 |. TnmJ catalyzes the SAM-independent cofactorless cryptic oxidation of TNM I (8).

a, HPLC analysis, with detection at 539 nm and 460 nm, of the in vitro TnmJ-catalyzed conversion of TNM I (8) to TNM J (13). std, standard. b, The homodimeric apo-structure of TnmJ has a characteristic α,β-Rossmann methyltransferase fold, with one monomer depicted in red. c, The active site of TnmJ with 8 docked based on results from a 100-ns molecular dynamics simulation depicts key residues implicated in binding and catalysis.