Figure 6: Superposition between the homology model of CTFV RdRp NS5 with code HE997074 (red cartoon) and the structural template 4HDG (orange cartoon). Active site GTP is displayed as stick model. Grey and green spheres denote zinc and magnesium ions. Cyan and green sticks models indicate CTFV RdRp positions under selective pressure and insertions with respect to 4HDG. Orange sticks indicate the 4HDG insertion residues. Numbering refers to full-length 4HDG sequence. The two-residues insertion of CTFV RdRp between the 4HDG positions 557-558 and 584-585, respectively are indicated. Left figure is rotated by 180° along the vertical y axis with respect to that represented on the right panel.