Residue IE Score: Monitors that all PHE, TYR, and TRP residues are scoring well.

Core Existence: Ensures that at least 30% of the residues are buried in the core of your design.

Secondary Structure: Checks that no more than 50% of residues are in helices; penalties are incurred if more than 50% of residues form helices.

Secondary Structure Design: Penalizes all CYS residues. Penalizes GLY, ALA, and PRO residues in helices and sheets.

Residue Count: Penalizes extra residues inserted beyond the 65 residue limit. Players may insert up to 10 extra residues.

Ideal Loops: Penalizes loops that do not conform to preferred ABEGO patterns. Use Auto Structures to see which residues count as "loops."

Unsure why but at some point this no longer will play without crashing on scripts, cuts, closing windows and on simple moves like shake, wiggle, and mutate. Installed a fresh client without transferring over any old puzzles and it is still happening (and possibly even more markedly)

Build ID 20161026-4422e3a127-osx_x86

iMac (Retina 5K, 27-inch, Late 2015)
4 GHz Intel Core i7
32 GB 1867 MHz DDR3
AMD Radeon R9 M395X 4096 MB

Have submitted several feedback entries with logs... most frequent threads crashing are 4, 10, and now 0. Check feedback log for another monomer puzzle which was having the same problems here for more information:
http://fold.it/portal/node/2003271

Am still seeing "game_dynamic" which I have been seeing on every update of foldit since Aug. 3 2016 and there are at least 2 or 3 other mac players who are seeing this on their finder bar when a foldit client window is active. This may or may not be contributing to the crashes (I suspect it is though).