According to Donny Strosberg, the head of Hybrigenics, the team has worked out about half of the proteininteractions that happen in Helicobacter, but he is content to leave it at that in order to pursue bigger fish.
Foldit, an online video game, allows nontechnical, nonbiologist players to visually "fold" protein structures, while computers calculate the chemical interactions corresponding to each arrangement.
And we have absolutely no way to calculate in principle all the possible interactions and functions of a single protein with the tens of thousands of other proteins in the cell!