http://dx.doi.org/10.1016/j.chembiol.2006.10.009 (Publisher version)
Chen, S., Galan, M. C., Coltharp, C., & O'Connor, S. E. (2006). Redesign of a central enzyme in alkaloid biosynthesis. Chemistry & Biology, 13(11), 1137-1141. doi:10.1016/j.chembiol.2006.10.009.