Download MendeleyMultitask ATPases (NBDs) of bacterial ABC importers type I and their interspecies exchangeability.
Leisico, F., Godinho, L.M., Goncalves, I.C., Silva, S.P., Carneiro, B., Romao, M.J., Santos-Silva, T., de Sa-Nogueira, I.(2020) Sci Rep 10: 19564-19564
- PubMed: 33177617
- DOI: https://doi.org/10.1038/s41598-020-76444-0
- Primary Citation of Related Structures:
6YIR - PubMed Abstract:
ATP-binding cassette (ABC) type I importers are widespread in bacteria and play a crucial role in its survival and pathogenesis. They share the same modular architecture comprising two intracellular nucleotide-binding domains (NBDs), two transmembrane domains (TMDs) and a substrate-binding protein. The NBDs bind and hydrolyze ATP, thereby generating conformational changes that are coupled to the TMDs and lead to substrate translocation. A group of multitask NBDs that are able to serve as the cellular motor for multiple sugar importers was recently discovered. To understand why some ABC importers share energy-coupling components, we used the MsmX ATPase from Bacillus subtilis as a model for biological and structural studies. Here we report the first examples of functional hybrid interspecies ABC type I importers in which the NBDs could be exchanged. Furthermore, the first crystal structure of an assigned multitask NBD provides a framework to understand the molecular basis of the broader specificity of interaction with the TMDs.
Organizational Affiliation:
XTAL - Macromolecular Crystallography Laboratory, UCIBIO, Departamento de Química, Faculdade de Ciências E Tecnologia, Universidade NOVA de Lisboa, Quinta da Torre, 2829-516, Caparica, Portugal.
