Fig 5.
Crystal structure of the isolated XMRV ΔC RNase H domain. (A) 2Fo-Fc electron density map of XMRV ΔC RNase H, displayed at σ = 2.0. (B) Stereo view of the isolated XMRV ΔC RNase H domain structure in cartoon representation. The structure contains an internal mixed β-sheet (shown in blue), composed of four parallel strands and one antiparallel strand, and four α-helices (shown in red). One Mg2+ ion (shown as a green sphere) is coordinated in the active site. Images were made using PyMOL (74).