Heme-binding enables allosteric modulation in an ancient TIM-barrel glycosidase.
Gamiz-Arco, G., Gutierrez-Rus, L.I., Risso, V.A., Ibarra-Molero, B., Hoshino, Y., Petrovic, D., Justicia, J., Cuerva, J.M., Romero-Rivera, A., Seelig, B., Gavira, J.A., Kamerlin, S.C.L., Gaucher, E.A., Sanchez-Ruiz, J.M.(2021) Nat Commun 12: 380-380
- PubMed: 33452262 
- DOI: 10.1038/s41467-020-20630-1
- Primary Citation of Related Structures:  
6Z1H, 6Z1M - PubMed Abstract: 
Glycosidases are phylogenetically widely distributed enzymes that are crucial for the cleavage of glycosidic bonds. Here, we present the exceptional properties of a putative ancestor of bacterial and eukaryotic family-1 glycosidases. The ancestral protein shares the TIM-barrel fold with its modern descendants but displays large regions with greatly enhanced conformational flexibility ...