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Puzzle
Expires: 02/13/16 23:00:00
2 comments
Top Group: Anthropic Dreams
Top Player: jamiexq
Top Score: 13,240
Categories: Design, Overall, Symmetry
This symmetric design puzzle has C4 symmetry, with four symmetric chains. The Hbond Network Filter encourages players to bury satisfied Hbond networks at the interface, but note that no more than six inter-molecular Hbonds may contribute to the filter! There are several other filters in effect; see the puzzle comments for details. The Baker Lab will run folding predictions on your solutions for this puzzle, and those that perform well will be synthesized in the lab. Remember, you can use the Upload for Scientists button for up to 5 designs that you want us to look at, even if they are not the best-scoring solutions!
Puzzle
Expires: 02/12/16 23:00:00
Top Group: Beta Folders
Top Player: reefyrob
Top Score: 9,501
Categories: Overall, Prediction
The structure of this protein is still unknown. Secondary structure predictions (from PSIPRED) are marked on the starting structure, and provide clues about where the protein might form helices and sheets!
Puzzle
Expires: 03/17/16 23:00:00
Top Group: Ms. Carter's Jr. Science Classes
Top Player: maria_pl
Top Score: 14,489
Categories: Beginner
In electron density puzzles, we give you some experimental data to help you find the correct fold. This data takes the form of an electron density, and appears in game as a guide. You can adjust the guide visualization by going to [Actions]>[Electron Density]. For players with fewer than 150 global points.
Puzzle
Expires: 02/10/16 18:00:00
1 comment
Top Group: Gargleblasters
Top Player: Blipperman
Top Score: 9,575
Categories: Overall, Prediction
This is a throwback puzzle to the early days of Foldit. This small protein, from the venom of the saw-scaled viper, interferes with the cellular adhesion machinery that allows blood clotting. This protein contains eight cysteine residues that oxidize to form four disulfide bonds. We are revisiting old Foldit puzzles so we can see how useful the recent additions to the game have been.
Puzzle
Expires: 03/10/16 23:00:00
Top Group: TS Biology 
Top Player: Sam256
Top Score: 8,957
Categories: Beginner
We are giving you this Parabacteroides Distasonis protein as an extended chain. The native is shown as a guide on this puzzle, so try using everything you have learned in the Intro levels to match the native fold. Hints and details are posted in the puzzle comments. For players with fewer than 150 global points.
Puzzle
Expires: 03/03/16 23:00:00
Top Group: BCH 335
Top Player: bch335_WeihsiYao
Top Score: 8,623
Categories: Beginner
We are giving you this currently unsolved short protein as an extended chain. It has only 48 residues and we're posting it with no secondary structure predictions. For players with fewer than 150 global points.
Puzzle
Expires: 02/25/16 23:00:00
Top Group: xkcd
Top Player: theoracle94
Top Score: 8,672
Categories: Beginner
This small unsolved Arabidopsis protein only has 59 residues and negatively controls the biosynthesis of starch in plants and regulates leaf and seed composition. We are giving you 5 starts for this puzzle. Resetting the puzzle will cycle through these 5 Zhang server predictions. They are also in the Alignment Tool so you can use partial threading as well as an extended chain. For players with fewer than 150 global points.
Puzzle
Expires: 02/18/16 23:00:00
Top Group: Go Science
Top Player: benrh
Top Score: 11,141
Categories: Beginner
This is a small symmetric trimer design puzzle. A symmetric protein relies not only on how well folded each part is, but also on how well they interface together. Your changes will be reflected in the symmetric unit. Make sure you have completed Intro Puzzle 5-2, and 7-1 through 7-4. For players with fewer than 150 global points.
Puzzle
Expires: 02/11/16 23:00:00
Top Group: xkcd
Top Player: dahast.de
Top Score: 9,018
Categories: Beginner
We are giving you a helix positioned over a hydrophobic groove where binding occurs in nature. You can mutate any residue on the helix but none on the native binding region. Try to look for favorable hydrophobic interactions in this groove while maintaining the helix. For players with fewer than 150 global points.

Closed

Puzzle
Expired: 02/05/16 23:00:00
2 comments
Top Group: Contenders
Top Player: gitwut
Top Score: 9,220
Categories: Overall, Prediction
The structure of this protein is still unknown. Secondary structure predictions (from PSIPRED) are marked on the starting structure, and provide clues about where the protein might form helices and sheets!
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Supported by: UW Center for Game Science, UW Department of Computer Science and Engineering, UW Baker Lab, DARPA, NSF, HHMI, Microsoft, and Adobe