Core Existence: Monomer (max +2000)
Ensures that at least 20 residues are buried in the core of the monomer unit.
Core Existence: Complex (max +2400)
Ensures that at least 48 residues are buried in the core of the entire complex (including the interface between monomer units).
SS Design (max +500)
Penalizes all CYS residues. Penalizes GLY, ALA residues in sheets. Penalizes GLY, ALA, SER, THR in helices.
Ideal Loops (max +500)
Penalizes any loop region that does not match one of the Building Blocks in the Blueprint tool. Use "Auto Structures" to see which regions of your protein count as loops.
Secondary Structure (max +500)
No more than 50% of residues may form helices. Extra helices are penalized at 10 points per residue.
It would be most helpful to be able to add and delete residues to these symmetry puzzles: is there still some bug that precludes this?
I agree! Unfortunately, the underlying Rosetta code for residue insertions/deletions is slightly more complicated for symmetric puzzles, so right now this isn't supported in Foldit.
However, I think there are some ways around the difficulty, so hopefully we can fix this soon!
I would appreciate it if you would list the number of residues (segments) in each monomer on the web pages for puzzles like this. For example, Puzzle 1644 has 70 residues per monomer while Puzzle 1638 had only 65 residues per monomer.
Other players have mentioned this as well. We'll try to be better about posting residue counts in future design puzzles!