A 2.1 A resolution structure of an uncleaved alpha(1)-antitrypsin shows variability of the reactive center and other loops.
Kim, S., Woo, J., Seo, E.J., Yu, M., Ryu, S.(2001) J Mol Biol 306: 109-119
- PubMed: 11178897 
- DOI: 10.1006/jmbi.2000.4357
- Primary Citation of Related Structures:  
1HP7 - PubMed Abstract: 
Serpin (serine protease inhibitor) proteins are involved in diverse physiological processes including inflammation, coagulation, matrix remodeling, and cell differentiation. Deficiency of normal serpin functions leads to various hereditary diseases. ...