Figure 7.
Structural comparison of four flap structure-selective nucleases. Four structure-selective nucleases were compared: PaFAN1 (A), hFEN1-DNA (3Q8K) (B), hExo1-DNA (3QEB) (C), and hMUS81-DNA (4P0S and 4P0R) (D). Post-nick DNA is in the same orientation. The wedge helix is shown in green. (E) Surface representation of PaFAN1 bound to 5′ flap DNA. A hole is marked. The figure is an orthogonal view of A. (F) Surface representation of hFEN1 with 5′ flap DNA. The figure is an orthogonal view of B.