Catalytic versatility and backups in enzyme active sites: the case of serum paraoxonase 1.
Ben-David, M., Elias, M., Filippi, J.J., Dunach, E., Silman, I., Sussman, J.L., Tawfik, D.S.(2012) J Mol Biol 418: 181-196
- PubMed: 22387469 
- DOI: 10.1016/j.jmb.2012.02.042
- Primary Citation of Related Structures:  
3SRE, 3SRG - PubMed Abstract: 
The origins of enzyme specificity are well established. However, the molecular details underlying the ability of a single active site to promiscuously bind different substrates and catalyze different reactions remain largely unknown. To better understand the molecular basis of enzyme promiscuity, we studied the mammalian serum paraoxonase 1 (PON1) whose native substrates are lipophilic lactones ...