Placeholder image of a protein
Icon representing a puzzle

2443: Revisiting CCHFV Round 2

Closed since almost 2 years ago

Intermediate Overall Small Molecule Design

Summary


Created
April 12, 2024
Expires
Max points
100
Description

The Crimean-Congo Hemorrhagic Fever (CCHF) is a life-threatening zoonotic disease caused by a tick-borne virus. Recent research has revealed the significant role of the viral-encoded Ovarian Tumor (OTU) deubiquitinase in the CCHFV replication process. Based on the most promising compounds, this puzzle will focus on getting an inhibitor for this protein. As the CCHFV-OTU protease interacts with another protein (ubiquitin), the interaction surface is quite large and superficial, making it a challenging binding pocket. For this round we will be focusing on the upper binding pocket. For more details check out the Crimean-Congo Hemorrhagic Fever blog post.

Top groups


  1. Avatar for Go Science 100 pts. 24,732
  2. Avatar for Anthropic Dreams 2. Anthropic Dreams 71 pts. 24,532
  3. Avatar for Contenders 3. Contenders 49 pts. 24,155
  4. Avatar for VeFold 4. VeFold 33 pts. 23,778
  5. Avatar for Gargleblasters 5. Gargleblasters 22 pts. 23,696
  6. Avatar for Kotocycle 6. Kotocycle 14 pts. 23,115
  7. Avatar for Australia 7. Australia 8 pts. 22,806
  8. Avatar for FamilyBarmettler 8. FamilyBarmettler 5 pts. 22,736
  9. Avatar for AlphaFold 9. AlphaFold 3 pts. 22,720
  10. Avatar for L'Alliance Francophone 10. L'Alliance Francophone 2 pts. 22,685

  1. Avatar for Sandrix72
    1. Sandrix72 Lv 1
    100 pts. 24,732
  2. Avatar for gmn 2. gmn Lv 1 93 pts. 24,522
  3. Avatar for Marvelz 3. Marvelz Lv 1 86 pts. 24,259
  4. Avatar for BootsMcGraw 4. BootsMcGraw Lv 1 80 pts. 24,155
  5. Avatar for ucad 5. ucad Lv 1 74 pts. 24,150
  6. Avatar for spvincent 6. spvincent Lv 1 68 pts. 23,804
  7. Avatar for davidoskky 7. davidoskky Lv 1 63 pts. 23,778
  8. Avatar for HuubR 8. HuubR Lv 1 58 pts. 23,696
  9. Avatar for nspc 9. nspc Lv 1 53 pts. 23,665
  10. Avatar for Bruno Kestemont 10. Bruno Kestemont Lv 1 49 pts. 23,658

Comments


Sciren Staff Lv 1

Objectives

Maximum bonus: +7750

Compound Library (max +750)
Gives a bonus if your current compound is in the library. This uses a local cached version of the Compound Library search results to determine if the compound is in the library. If you manually create a compound that happens to be in the library (or if you load a shared solution with an on-library compound), you may need to submit the compound to the compound library search and wait to get the results back before the objective can properly recognize that the compound is in the library. (If the objective is not updating, try wiggling the structure. See this forum post for more discussion.)

Torsion Quality (max +1000)
Keeps bond rotations in a good range. Using Wiggle or Tweak Ligand can fix bad torsions. (Show highlights torsions to be rotated.)

Number of Rotatable Bonds (max +1000)
Intended to keep the ligand from getting too big and floppy. You can reduce rotatable bonds by deleting groups or forming rings. (Show highlights rotatable bonds.)

Ligand TPSA (max +1000)
Topological Polar Surface Area - Keeps the polar surface area (including buried polar surface) low. To improve, try removing oxygens and nitrogens. (Show highlights atoms contributing to higher TPSA.)

Ligand cLogP (max +1000)
A measure of polarity - Keeps the molecule from getting too hydrophobic. To improve, try adding polar oxygens and nitrogens. (Show highlights atoms contributing to higher cLogP.)

Bad Groups (max +1000)
Gives a bonus for avoiding groups that interfere with assays, which are far from the compounds in the library, or which otherwise have issues. (Show highlights groups at issue.)

Molecular Weight (max +1000)
Keeps the ligand within a reasonable size limit.

Synthetic Accessibility (max +1000)
Keeps the ligand from going too far from the compounds in the library. (Show highlights parts of the molecule at issue.)

rmoretti Staff Lv 1

It looks like the ZINC server is throwing spurious errors at the moment. Hopefully that will resolve soon, and then the compounds which are being marked as errors can be re-submitted.

jeff101 Lv 1

The starting ligand for Puzzle 2443 gives a library of 25 hits. #9 in there (I call it ic-9) gives 0 instead of +750 for the library bonus. I shared ic-9 with scientists. Why doesn't it give the +750 point library bonus?