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2682: Revisiting CCHFV Round 7

Closed since 4 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 Araceli Mamani 61. Araceli Mamani Lv 1 1 pt. 20,232
  2. Avatar for mengzach 62. mengzach Lv 1 1 pt. 20,135
  3. Avatar for efull 63. efull Lv 1 1 pt. 20,133
  4. Avatar for Brecken 64. Brecken Lv 1 1 pt. 20,063
  5. Avatar for Penguiroth 65. Penguiroth Lv 1 1 pt. 20,062
  6. Avatar for Apothecary1815 66. Apothecary1815 Lv 1 1 pt. 20,057
  7. Avatar for doctaven 67. doctaven Lv 1 1 pt. 20,047
  8. Avatar for PaoloM02 68. PaoloM02 Lv 1 1 pt. 20,045
  9. Avatar for Yu 69. Yu Lv 1 1 pt. 20,028
  10. Avatar for SquidSquire 70. SquidSquire Lv 1 1 pt. 20,028

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.)