Figure 2
From: Probing the Structural Dynamics of the Catalytic Domain of Human Soluble Guanylate Cyclase

(a) The hsGC catalytic dimer. Conserved secondary structure elements of the hsGC catalytic dimer are shown in red and cyan. (b) docked GTP (pink) and cGMP (blue) illustrate the very similar orientation to the ATP (cyan) in R.norvegicus AC.