579 (<150): Beginner CASP10 Refinement Puzzle: TR662

Closed since over 13 years ago

Summary

• Created: June 15, 2012
• Expires: June 24, 2012 at 12:00 UTC
• Max points: 100

Description

This is the fourth CASP10 Refinement Target. This model was the best server prediction for target T0662, generated by the Zhang server. We've been told that ~84% of this model matches the native, so you just need to find which 16% to refine! More info in the puzzle comments. For players with fewer than 150 global points.

Top groups

• 1. Russian team 100 pts. 9,786
• 2. L'Alliance Francophone 47 pts. 9,735
• 3. Go Science 19 pts. 9,557
• 4. Skeptics Guide to the Universe 7 pts. 9,555
• 5. Contenders 2 pts. 9,432
• 6. Deleted group pts. 9,354
• 7. Deleted group pts. 8,368
• 8. Geekdo 1 pt. 8,368

Top soloists

• 11. damadeo 38 pts. 9,613
• 12. FScot 34 pts. 9,588
• 13. screenshot 30 pts. 9,588
• 14. Deleted player pts. 9,588
• 15. SilverSteel 24 pts. 9,587
• 16. Lendsheep 22 pts. 9,586
• 17. tela 19 pts. 9,585
• 18. cherry39 17 pts. 9,583
• 19. crawlee34225 15 pts. 9,583
• 20. hada 13 pts. 9,583

Comments

[beta_helix]

If you are new to Foldit, here are detailed instructions to get you started:
http://fold.it/portal/node/988864

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This is the page for this CASP10 refinement target:
http://predictioncenter.org/casp10/target.cgi?id=110&view=refinement

Note that the organizers give us this as a hint:

"N-term res. 1-4 are disordered in the native structure and removed from the starting model. Starting GDT_TS=84."

So, the first 4 residues have been deleted.

GDT_TS=84 essentially means that 84% of the model superimposes correctly onto the native structure:

en.wikipedia.org

Global distance test

The global distance test (GDT), also written as GDT_TS to represent "total score", is a measure of similarity between two protein structures with known amino acid correspondences (e.g. identical amino acid sequences) but different tertiary structures. It is most commonly used to compare the results of protein structure prediction to the experimentally determined structure as measured by X-ray crystallography, protein NMR, or, increasingly, cryoelectron microscopy. The metric was developed by Ada...