Crystal structures of reduced and oxidized DsbA: investigation of domain motion and thiolate stabilization.Guddat, L.W., Bardwell, J.C., Martin, J.L.
(1998) Structure 6: 757-767
- PubMed: 9655827
- DOI: https://doi.org/10.1016/s0969-2126(98)00077-x
- Primary Citation of Related Structures:
1A2J, 1A2L, 1A2M
- PubMed Abstract:
The redox proteins that incorporate a thioredoxin fold have diverse properties and functions. The bacterial protein-folding factor DsbA is the most oxidizing of the thioredoxin family. DsbA catalyzes disulfide-bond formation during the folding of secreted proteins. The extremely oxidizing nature of DsbA has been proposed to result from either domain motion or stabilizing active-site interactions in the reduced form. In the domain motion model, hinge bending between the two domains of DsbA occurs as a result of redox-related conformational changes.
Centre for Drug Design and Development University of Queensland Brisbane, QLD, 4072, Australia.