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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 Trajan464 21. Trajan464 Lv 1 26 pts. 22,109
  2. Avatar for rosie4loop 22. rosie4loop Lv 1 24 pts. 21,935
  3. Avatar for pr0tfold 23. pr0tfold Lv 1 22 pts. 21,929
  4. Avatar for akaaka 24. akaaka Lv 1 21 pts. 21,912
  5. Avatar for Arlind1 25. Arlind1 Lv 1 19 pts. 21,907
  6. Avatar for dcrwheeler 26. dcrwheeler Lv 1 18 pts. 21,849
  7. Avatar for grogar7 27. grogar7 Lv 1 16 pts. 21,824
  8. Avatar for ZeroLeak7 28. ZeroLeak7 Lv 1 15 pts. 21,785
  9. Avatar for Elfi 29. Elfi Lv 1 14 pts. 21,709
  10. Avatar for Dr.Sillem 30. Dr.Sillem Lv 1 13 pts. 21,668

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.)