NO and CO differentially activate soluble guanylyl cyclase via a heme pivot-bend mechanism.
Ma, X., Sayed, N., Beuve, A., van den Akker, F.(2007) EMBO J 26: 578-588
- PubMed: 17215864 
- DOI: 10.1038/sj.emboj.7601521
- Primary Citation of Related Structures:  
2O09, 2O0C, 2O0G - PubMed Abstract: 
Diatomic ligand discrimination by soluble guanylyl cyclase (sGC) is paramount to cardiovascular homeostasis and neuronal signaling. Nitric oxide (NO) stimulates sGC activity 200-fold compared with only four-fold by carbon monoxide (CO). The molecular details of ligand discrimination and differential response to NO and CO are not well understood ...