A Conserved Activation Cluster Is Required for Allosteric Communication in HtrA-Family Proteases.
de Regt, A.K., Kim, S., Sohn, J., Grant, R.A., Baker, T.A., Sauer, R.T.(2015) Structure 23: 517-526
- PubMed: 25703375 
- DOI: 10.1016/j.str.2015.01.012
- Primary Citation of Related Structures:  
4RQY, 4RQZ, 4RR0, 4RR1 - PubMed Abstract: 
In E. coli, outer-membrane stress causes a transcriptional response through a signaling cascade initiated by DegS cleavage of a transmembrane antisigma factor. Each subunit of DegS, an HtrA-family protease, contains a protease domain and a PDZ domain. The trimeric protease domain is autoinhibited by the unliganded PDZ domains ...