Figure 5
From: Function Coupling Mechanism of PhuS and HemO in Heme Degradation
Comparison of the Arg positions in PhuS and HemO. Side chains of the residues near the active site are drawn as sticks. Oxygen atoms of adjacent waters are drawn as balls. In PhuS, Arg resides right above the heme ring (left), while in HemO, there are several residues and water molecules located between Arg and the heme ring (right).
