Foldit Puzzles

1327: Revisiting Puzzle 84: Giant Anemone

This is a throwback puzzle to the early days of Foldit. This toxin, which is released by the sea anemone A. xanthogrammica, disrupts normal contraction of cardiac muscle in potential predators, and furthermore serves as a pheromone to signal danger to nearby anemones. This protein contains six cysteine residues that oxidize to form three disulfide bonds. We are revisiting old Foldit puzzles so we can see how useful the recent additions to the game have been.

1326: Unsolved De-novo Freestyle 95

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!

1325: 65 Residue Monomer Design: Blueprint

This puzzle features the Blueprint panel, which can be accessed from the Actions menu (or the Main menu in Selection Interface). See the blog for more information. Like other recent puzzles, the Rebuild action has been disabled here; in its place we encourage players to use Remix instead. See the puzzle comments for filter 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!

1324: Revisiting Puzzle 83: Cardiotoxin

This is a throwback puzzle to the early days of Foldit. This toxin, produced by the Chinese cobra N. atra, induces contracture in skeletal and cardiac muscle. 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.

1323: Unsolved De-novo Freestyle 94

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!

1322: 80 Residue Monomer Design: Blueprint

This puzzle features the Blueprint panel, which can be accessed from the Actions menu (or the Main menu in Selection Interface). See the blog for more information. Like other recent puzzles, the Rebuild action has been disabled here; in its place we encourage players to use Remix instead. See the puzzle comments for filter 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!

1320: Revisiting Puzzle 82: Cytotoxin

This is a throwback puzzle to the early days of Foldit. This toxin, produced by the Mozambique spitting cobra, induces contracture in skeletal and cardiac muscle. This protein contains eight cysteine residues, which 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.

1321: 90 Residue Monomer Design: Blueprint

This puzzle features the new Blueprint panel, which can be accessed from the Actions menu (or the Main menu in Selection Interface). See the blog for more information. Like other recent puzzles, the Rebuild action has been disabled here; in its place we encourage players to use Remix instead. See the puzzle comments for filter 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!

1319: Unsolved De-novo Freestyle 93

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!

1318: Revisiting Puzzle 81: Calcium Ion Binding Protein

This is a throwback puzzle to the early days of Foldit. This protein, which inhibits muscle contraction in the absence of calcium ions, changes conformation in the presence of calcium to allow muscle contraction. We are revisiting old Foldit puzzles so we can see how useful the recent additions to the game have been.