Placeholder image of a protein
Icon representing a puzzle

634: Electron Density Puzzle 11

Closed since over 13 years ago

Intermediate Overall Prediction Electron Density

Summary

Created
September 13, 2012
Expires
Max points
100
Description

In this electron density puzzle, we're giving you some more realistic, noisy density. You'll have to use the electron density as a guide in order to find the correct fold. Try to find the best fit for the protein inside of the guide - but remember that since the density is noisy, it isn't always correct. We have posted the secondary structure predictions in the puzzle comments. Get started by completing the electron density intro level (5-3).

Top groups

  1. Avatar for 7Monkeys 31. 7Monkeys 1 pt. 6,373
  2. Avatar for Skeptics Guide to the Universe 32. Skeptics Guide to the Universe 1 pt. 6,070
  3. Avatar for DSN @ Home 33. DSN @ Home 1 pt. 6,018
  4. Avatar for Reddit 34. Reddit 1 pt. 5,810
  5. Avatar for xkcd 35. xkcd 1 pt. 5,791
  6. Avatar for Window Group 36. Window Group 1 pt. 5,453
  7. Avatar for R12 37. R12 1 pt. 5,422
  8. Avatar for Rice Biochemistry 38. Rice Biochemistry 1 pt. 4,186
  9. Avatar for null pointer exception 39. null pointer exception 1 pt. 4,128
  1. Avatar for DrMistry 41. DrMistry Lv 1 52 pts. 9,542
  2. Avatar for pmlkjn 42. pmlkjn Lv 1 51 pts. 9,523
  3. Avatar for gramps 43. gramps Lv 1 51 pts. 9,494
  4. Avatar for truestone 44. truestone Lv 1 50 pts. 9,488
  5. Avatar for Alistair69 45. Alistair69 Lv 1 49 pts. 9,475
  6. Avatar for gitwut 46. gitwut Lv 1 48 pts. 9,449
  7. Avatar for kastberg 47. kastberg Lv 1 47 pts. 9,440
  8. Avatar for Aubade00 48. Aubade00 Lv 1 46 pts. 9,423
  9. Avatar for yoyo washington 49. yoyo washington Lv 1 45 pts. 9,414
  10. Avatar for nemo7731 50. nemo7731 Lv 1 45 pts. 9,411

Comments

beta_helix Staff Lv 1

Here is the sequence logo predicted by the SAM server:

H = helix
E = sheet
C = loop (or coil)

The taller the letter at each position, the higher the probability of that specific secondary structure for that amino acid.

For example, the Valines at residues 13, 31, 52 & 92-93 are highly predicted to be part of a helix. However, the Valine at residue 81 isn't predicted to be anything!