Scheme of lysine interactions between sGC and PDI.

<p>For clarity, PDI is represented twice as blue box 1 and 2, above and below α and β subunits of sGC. α and β are represented as light red and light green block arrows, respectively. The respective HNOX, PAS, coiled-coil (CC), catalytic domain (CAT) and C-terminal tail are indicated with the corresponding residue numbers (human sequence).