Figure 3
From: Structure of prothrombin in the closed form reveals new details on the mechanism of activation
Primary sequence and zoom-in view of the Lnk2 connecting kringle-1 to kringle-2. Residues 149, 150 and 154 have weak electron density. The cleavage site Arg155 is shown as spheres (magenta). The electron density 2Fo-Fc map is countered at 1.0σ.
