CBLB activity model
CBLB (Cbl-b) is an E3 ubiquitin ligase that holds back T-cell and NK-cell activation, acting as an intracellular immune checkpoint. Its inhibitors are studied to boost antitumor immunity.
A model trained on measured activity data for CBLB (Immuno-oncology). Give it compounds and it predicts their IC50 against CBLB, so you can rank candidates by it.
Predict with this model
- UniProt
- Q13191
- Reference structure
- PDB 8GCY, ligand Z3N
- Training data
- TSAP (Boltz-2): 104 compounds, IC50TSAP (AI-QSAR): 104 compounds, IC50
- Validation
- Predicted and measured values are compared on compounds held out of training.
- Cost
- From 100 cr, quoted before you submit
- Model version
- TSAP (Boltz-2): TSAP pipeline v2.2TSAP (AI-QSAR): Ridge regression on docking features

Validation results
Predicted and measured values compared on compounds held out of training. RMSE is in log units (pIC50 and similar).
TSAP (Boltz-2)
Pearson r
0.81
R²
0.49
RMSE (log units)
0.65
Holdout compounds
26
TSAP (AI-QSAR)
Pearson r
0.86
Square root of RSQ
RSQ
0.74
Holdout compounds
26
How to use it
Under Predict with this model, press TSAP (Boltz-2) or TSAP (AI-QSAR). The wizard of the workflow you pressed opens with the CBLB model already selected.
Upload the SMILES of the compounds to predict as a .smi, .csv or .txt file.
Check the estimated credits and time, then submit.
The result is a table of compounds ranked by predicted IC50.
Limitations
- Predictions can be less accurate for compounds whose structures differ a lot from the training data.
- Validation used only about 26 compounds, so performance on new compounds can differ from these metrics.
- Predictions do not replace experiments. Use them to decide what to synthesize and measure first.