The ternary structure of double-headed arrowhead protease inhibitor API-A complexed with two trypsins reveals a novel reactive site conformation.
Bao, R., Zhou, C.Z., Jiang, C.-H., Lin, S.X., Chi, C.W., Chen, Y.X.(2009) J.Biol.Chem. 284: 26676-26684
- PubMed: 19640842 
- DOI: 10.1074/jbc.M109.022095
- PubMed Abstract: 
The double-headed arrowhead protease inhibitors API-A and -B from the tubers of Sagittaria sagittifolia (Linn) feature two distinct reactive sites, unlike other members of their family. Although the two inhibitors have been extensively characterized, ...