beta_helix Staff Lv 1
The connection between the hub and the beginnings of each chain looks a bit unusual right now, but it behaves similarly to a regular peptide bond.
Check out the new blog entry for the background on this new series of puzzles: http://fold.it/portal/node/993778
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If you are new to Foldit, make sure you have completed Intro Puzzle 7-1 through 7-4 before trying this puzzle!