Fig. 4.
The structures of FDR-A and FDR-B enzymes.
A. MSMEG_3356; from left to right, a topology diagram, showing the arrangement of the split barrel of anti-parallel β-sheets, surrounded by three large α-helices at the side and a short α-helix above, a cartoon diagram, and an electrostatic surface potential representation with F420H2 docked.
B. MSMEG_3380; from left to right, a topology diagram of the structure, showing the arrangement of the split barrel of anti-parallel β-sheets, surrounded by one large α-helix at the side and three short α-helices above and below, a cartoon diagram of the 3380 dimer, and an electrostatic surface potential representation with F420H2 docked.