The small protein in this puzzle can bind to a single zinc atom, but the zinc atom does not appear in Foldit.
The puzzle protein has 39 segments with the sequence:
This sequence is found in this Protein Data Bank entry:
- 1FRE (chain A; offset 3)
The recipe Missing Ligand 1.0.1 -- brow42 can be used to create bands that simulate the missing zinc atom. Select the "zinc finger" option on the first screen, then pick one of the geometries on the second screen and click "Band". If your choice is good, wiggling and shaking may pull the protein into a better shape.
This puzzle does not have any ligands.
This puzzle has a single chain.
See players' solutions from previous visits this puzzle: