Disulfide isomerization after membrane release of its SAR domain activates P1 lysozyme.
Xu, M., Arulandu, A., Struck, D.K., Swanson, S., Sacchettini, J.C., Young, R.(2005) Science 307: 113-117
- PubMed: 15637279 
- DOI: 10.1126/science.1105143
- Primary Citation of Related Structures:  
1XJT, 1XJU - PubMed Abstract: 
The P1 lysozyme Lyz is secreted to the periplasm of Escherichia coli and accumulates in an inactive membrane-tethered form. Genetic and biochemical experiments show that, when released from the bilayer, Lyz is activated by an intramolecular thiol-disulfide isomerization, which requires a cysteine in its N-terminal SAR (signal-arrest-release) domain ...