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2682: Revisiting CCHFV Round 7

Closed since 5 months ago

Intermediate Overall Small Molecule Design

Summary


Created
October 31, 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 lower binding pocket. For more details check out theĀ Crimean-Congo Hemorrhagic Fever blog post.

Top groups


  1. Avatar for Team South Africa 11. Team South Africa 1 pt. 20,047
  2. Avatar for Russian team 12. Russian team 1 pt. 19,115

  1. Avatar for RWoodcock 41. RWoodcock Lv 1 4 pts. 20,871
  2. Avatar for zbp 42. zbp Lv 1 4 pts. 20,771
  3. Avatar for emerson31210 43. emerson31210 Lv 1 4 pts. 20,758
  4. Avatar for Merf 44. Merf Lv 1 3 pts. 20,709
  5. Avatar for westchuck 45. westchuck Lv 1 3 pts. 20,696
  6. Avatar for jamestpierce 46. jamestpierce Lv 1 3 pts. 20,617
  7. Avatar for Aarav_Awasthi 47. Aarav_Awasthi Lv 1 2 pts. 20,569
  8. Avatar for tzabaoth 48. tzabaoth Lv 1 2 pts. 20,563
  9. Avatar for Moolanie 49. Moolanie Lv 1 2 pts. 20,557
  10. Avatar for Larini 50. Larini Lv 1 2 pts. 20,539

Comments


Sciren Staff Lv 1

Objectives

Maximum bonus: +6750

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.)