Icon representing a puzzle

2667: Revisiting CCHFV Round 5

Closed since 5 months ago

Intermediate Overall Small Molecule Design

Summary


Created
September 25, 2025
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 theĀ Crimean-Congo Hemorrhagic Fever blog post.

Top groups


  1. Avatar for Contenders 100 pts. 24,073
  2. Avatar for Anthropic Dreams 2. Anthropic Dreams 73 pts. 23,143
  3. Avatar for Go Science 3. Go Science 52 pts. 22,571
  4. Avatar for VeFold 4. VeFold 36 pts. 22,202
  5. Avatar for L'Alliance Francophone 5. L'Alliance Francophone 24 pts. 22,126
  6. Avatar for Void Crushers 6. Void Crushers 16 pts. 22,092
  7. Avatar for Australia 7. Australia 10 pts. 22,043
  8. Avatar for FamilyBarmettler 8. FamilyBarmettler 6 pts. 21,960
  9. Avatar for Mahmut Oyunda 9. Mahmut Oyunda 4 pts. 21,929
  10. Avatar for Marvin's bunch 10. Marvin's bunch 2 pts. 21,641

  1. Avatar for meatexplosion 41. meatexplosion Lv 1 4 pts. 21,357
  2. Avatar for DScott 42. DScott Lv 1 3 pts. 21,251
  3. Avatar for abiogenesis 43. abiogenesis Lv 1 3 pts. 21,242
  4. Avatar for RWoodcock 44. RWoodcock Lv 1 3 pts. 21,178
  5. Avatar for Fat Tony 45. Fat Tony Lv 1 2 pts. 21,026
  6. Avatar for Savas 46. Savas Lv 1 2 pts. 21,015
  7. Avatar for Merf 47. Merf Lv 1 2 pts. 21,011
  8. Avatar for Alistair69 48. Alistair69 Lv 1 2 pts. 20,987
  9. Avatar for AlphaFold2 49. AlphaFold2 Lv 1 2 pts. 20,985
  10. Avatar for ZiiONIC 50. ZiiONIC Lv 1 1 pt. 20,920

Comments


Sciren Staff Lv 1

Objectives

Maximum bonus: +7500

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 +750)
Keeps the ligand from going too far from the compounds in the library. (Show highlights parts of the molecule at issue.)