Contact Surface Metric (max +2000)
Measures how much of your binder surface is in close contact with the target protein. The goal Contact Surface is 200 or more.
Buried Unsats (max +500)
Penalizes 100 points for each polar atom that cannot make any hydrogen bonds.
The puzzle looks broken.
You may ignore this comment, I had to restart my foldit instance to fix a damn glitch :)
****** Encountered Crash at ..\..\..\source\src\core\chemical\ResidueType.cc:4071
unknown atom_name: ' CA ' in residue BTN
Thank you spdenne, we have a lead on how to fix this.
In the meantime, disabling the view option "Show backbone issues" should prevent the crash.
for the work-around
Its hard to do much redesign when you can't add or delete segments.
We probably don't want to allow extra residues in these puzzles. But in future puzzles we should be able to allow deletions and re-insertions.