The macrocyclizing protease butelase 1 remains autocatalytic and reveals the structural basis for ligase activity.
James, A.M., Haywood, J., Leroux, J., Ignasiak, K., Elliott, A.G., Schmidberger, J.W., Fisher, M.F., Nonis, S.G., Fenske, R., Bond, C.S., Mylne, J.S.(2019) Plant J 98: 988-999
- PubMed: 30790358 
- DOI: 10.1111/tpj.14293
- Primary Citation of Related Structures:  
6DHI - PubMed Abstract: 
Plant asparaginyl endopeptidases (AEPs) are expressed as inactive zymogens that perform maturation of seed storage protein upon cleavage-dependent autoactivation in the low-pH environment of storage vacuoles. The AEPs have attracted attention for their macrocyclization reactions, and have been classified as cleavage or ligation specialists ...