## Endpoint to Predict
- Endpoint scope: assay
- Measurement type: EC50
- Label type: continuous
- Binary semantics: pchembl
- Assay description: Antiviral activity against HIV1 3B/LA1 infected in HUT-78 cells co-cultured with uninfected human SupT1 CD4+ T-cell assessed as inhibition of envelope mediated cell-cell fusion after 16-20 hrs by cell-cell fusion assay
- Assay organism: Human immunodeficiency virus 1
- Assay cell type: HUT-78
- Target name: Human immunodeficiency virus 1
- Target type: ORGANISM
- Target organism: Human immunodeficiency virus 1

## Reference Molecule A
- Canonical SMILES: CC[C@H](C)[C@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@H](Cc1cnc[nH]1)NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)C(CSC1CC(=O)N(CCC(=O)NCCOCCOCCOCCOCCC(=O)N[C@@H]2[C@@H](O[C@H]3[C@H](OC)[C@@H](OC)[C@H](O[C@H]4[C@H](CS(=O)(=O)[O-])[C@@H](CS(=O)(=O)[O-])[C@@H](O[C@H]5[C@H](OC)[C@@H](OC)[C@H](O[C@@H]6[C@H](OS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](OC)O[C@H]6COS(=O)(=O)[O-])O[C@H]5C(=O)[O-])O[C@@H]4CS(=O)(=O)[O-])O[C@]3(CC)C(=O)[O-])O[C@@H](COS(=O)(=O)[O-])[C@H](OC)[C@H]2OC)C1=O)NC(C)=O)[C@@H](C)O)[C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CC(=O)O)C(=O)N[C@H](CC(C)C)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)N[C@H](C)C(=O)N[C@H](CO)C(=O)N[C@H](CC(C)C)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)N[C@H](CC(N)=O)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)N[C@H](Cc1ccccc1)C(N)=O.[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]
- Properties:
- ChEMBL ID: CHEMBL1213080
- Molecule type: Small molecule
- Molecular weight: 6683.76
- Heavy atoms: 454
- Hydrogen bond donors: 64
- Hydrogen bond acceptors: 113
- TPSA: 2677.71
- LogP: -54.02
- Rotatable bonds: 205
- Ring count: 15
- Aromatic rings: 9
- Formal charge: 0
- Fraction Csp3: 0.64
- QED: 0.01

## Known Reference Result on This Endpoint
- Molecule A clean result: median pChEMBL = 7.19
- This result is provided as context for predicting Molecule B on the same endpoint.

## Reference Molecule A Other ChEMBL Evidence
- type EC50; relation =; value 65; units nM; pChEMBL 7.19

## Query Molecule B
- Canonical SMILES: CC[C@H](C)[C@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@H](Cc1cnc[nH]1)NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](Cc1ccc(O)cc1)NC(C)=O)[C@@H](C)O)[C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](Cc1ccccc1)C(N)=O
- Properties:
- ChEMBL ID: CHEMBL525076
- Preferred name: ENFUVIRTIDE
- Molecule type: Protein
- Max clinical phase: 4
- Molecular weight: 4491.94
- Heavy atoms: 319
- Hydrogen bond donors: 63
- Hydrogen bond acceptors: 60
- TPSA: 1902.89
- LogP: -15.38
- Rotatable bonds: 151
- Ring count: 9
- Aromatic rings: 9
- Formal charge: 0
- Fraction Csp3: 0.56
- QED: 0.02

## Molecule Similarity
- Weighted Tanimoto: 0.5

Answer: 6.56