Enzyme Evolution: An Epistatic Ratchet versus a Smooth Reversible Transition.
Ben-David, M., Soskine, M., Dubovetskyi, A., Cherukuri, K.P., Dym, O., Sussman, J.L., Liao, Q., Szeler, K., Kamerlin, S.C.L., Tawfik, D.S.(2020) Mol Biol Evol 37: 1133-1147
- PubMed: 31873734 
- DOI: 10.1093/molbev/msz298
- Primary Citation of Related Structures:  
6G82, 6GMU, 6H0A - PubMed Abstract: 
Evolutionary trajectories are deemed largely irreversible. In a newly diverged protein, reversion of mutations that led to the functional switch typically results in loss of both the new and the ancestral functions. Nonetheless, evolutionary transitions where reversions are viable have also been described ...