puzzle picture
1870: Symmetric Trimer Design: Limited Interface
Status: Closed

Summary

Name: 1870: Symmetric Trimer Design: Limited Interface
Status: Closed
Created: 07/29/2020
Points: 100
Expired: 08/05/2020 - 23:00
Difficulty: Intermediate
Description: Design a symmetric protein trimer, with 3 identical chains that assemble together! This puzzle has no H-Bond Network objective, but there is "Core Limit: Complex" objective meant to limit the size of the interface between symmetric chains. An interface that is too large, with too many orange hydrophobics, can prevent the individual subunits from folding properly. The "Core Limit: Complex" objective will incur penalties if there are too many buried residues in the total assembly. This puzzle uses the Buried Unsats Objective, with a large penalty for buried polar atoms that can't make H-bonds. See the puzzle comments for more Objective details.
Categories: Design, Overall, Symmetry

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Comments

bkoep's picture
User offline. Last seen 3 hours 41 min ago. Offline
Joined: 11/15/2012
Groups: Foldit Staff
Objectives

Buried Unsats (max +500)
Penalizes polar atoms that cannot make hydrogen bonds, -150 points per atom (not including symmetric copies).

Core Existence: Monomer (max +2200)
Ensures that at least 22 residues are buried in the core of the monomer unit.

Core Limit: Complex (max +500)
Checks that no more than 87 residues are buried in the symmetric complex, including the interface between monomer units.

SS Design (max +500)
Penalizes all CYS residues. Penalizes GLY, ALA residues in sheets. Penalizes GLY, ALA, SER, THR in helices.

Ideal Loops (max +500)
Penalizes any loop region that does not match one of the Building Blocks in the Blueprint tool. Use "Auto Structures" to see which regions of your protein count as loops.

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Developed by: UW Center for Game Science, UW Institute for Protein Design, Northeastern University, Vanderbilt University Meiler Lab, UC Davis
Supported by: DARPA, NSF, NIH, HHMI, Amazon, Microsoft, Adobe, RosettaCommons