## Endpoint to Predict
- Endpoint scope: assay
- Measurement type: IC50
- Label type: continuous
- Binary semantics: pchembl
- Assay description: RORgamma Assay: The RORγ assay system was purchased from Indigo Biosciences. This nuclear receptor assay utilizes a human cell line that has been engineered to express a hybrid form of the Human RAR-related Orphan Receptor Gamma (RORγ) at high levels. The N-terminal DNA binding domain (DBD) of the native RORγ receptor was substituted with the yeast GAL4-DBD to generate the GAL4-RORγ hybrid nuclear receptor. The reporter cell line is transfected with a plasmid that encodes the beetle luciferase gene under the control of the GAL4 upstream activating sequence (UAS). GAL4 binds to the UAS and increases transcription of downstream target genes. The GAL4-RORγ hybrid is constitutively active; therefore, the principle application of this reporter assay system is to screen test compounds to quantify inverse-agonist activities against human RORγ. To assess the RORγ inverse-agonist activity of the test compounds, reporter cells were plated in white 96-well plates in triplicate and were treated with DMSO (vehicle) or test compound (concentration ranges of 0.4-200 nM or 2-1000 nM) at 37° C. with 5% CO2 in a humidified atmosphere for 23 hours. After this incubation, luciferin was added to the wells and luciferase activity was determined by measuring the luminescence signal using a BMG Pherastar microplate reader. Viability was determined using the Live Cell Multiplex Assay (Indigo Biosciences). Values from test compound samples were normalized to those from DMSO-treated samples. Data were analyzed using GraphPad Prism version 6 for Windows (GraphPad Software, La Jolla Calif. USA). A non-linear regression analysis with log (inhibitor) vs. normalized response using a variable slope was applied to fit the data and determine the IC50 values for inhibition of RORγ and cell viability.
- Assay organism: Homo sapiens
- Target name: Nuclear receptor ROR-gamma
- Target type: SINGLE PROTEIN
- Target organism: Homo sapiens

## Reference Molecule A
- Canonical SMILES: C[C@H]1C(=O)C(C#N)=C[C@@]2(C)c3nc(-c4ccnc5ccccc45)nc(-c4ccc(F)cc4)c3CC[C@H]12
- Properties:
- ChEMBL ID: CHEMBL5959699
- Molecular weight: 474.54
- Heavy atoms: 36
- Hydrogen bond donors: 0
- Hydrogen bond acceptors: 5
- TPSA: 79.53
- LogP: 5.99
- Rotatable bonds: 2
- Ring count: 6
- Aromatic rings: 4
- Formal charge: 0
- Fraction Csp3: 0.23
- QED: 0.36

## Known Reference Result on This Endpoint
- Molecule A clean result: median pChEMBL = 7.17
- This result is provided as context for predicting Molecule B on the same endpoint.

## Reference Molecule A Other ChEMBL Evidence
- type IC50; relation =; value 67; units nM; pChEMBL 7.17; comment 1156161

## Query Molecule B
- Canonical SMILES: CCC[C@@]12C=C(C#N)C(=O)C[C@H]1CCc1c(-c3ccccc3F)nc(-c3ccnc(C4CC4)c3)nc12
- Properties:
- ChEMBL ID: CHEMBL6003632
- Molecular weight: 478.57
- Heavy atoms: 36
- Hydrogen bond donors: 0
- Hydrogen bond acceptors: 5
- TPSA: 79.53
- LogP: 6.25
- Rotatable bonds: 5
- Ring count: 6
- Aromatic rings: 3
- Formal charge: 0
- Fraction Csp3: 0.37
- QED: 0.43

## Molecule Similarity
- Weighted Tanimoto: 0.43

Answer: 6.6