Figure 1: a, Secondary structure and modeled regions of the Tetrahymena intron. All of these interactions can be readily incorporated into a single model of the group I intron active site, which ...

A little more than a year ago, on a trip to Nairobi, Kenya, some colleagues and I met a 12-year-old Masai boy named Richard Turere, who told us a fascinating story. His family raises livestock on the ...