Binder profile

CHEMBL3663148

Bioactivity hit from ChEMBL on a similar protein.

Bound to: PA1523 — xanthine dehydrogenase

Via homolog UniProt P80457 C20H16N2O4
pchembl 8.34
Mol. weight 348.36 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL3663148
UniProt (similar protein)
P80457
pchembl
8.340
Target protein
PA1523

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 348.36 Da
LogP (Crippen) 3.70
H-bond donors 1
H-bond acceptors 5
TPSA 84.48 Ų
Rotatable bonds 6
Aromatic rings 3 / 3
Heavy atoms 26
Fraction sp³ C 0.10
Formula C20H16N2O4

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy High

Estimated from TPSA and LogP only: TPSA ≤ 90 Ų and −1 ≤ LogP ≤ 5 are treated as a favorable small-molecule permeability screen.

Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 348.4
  • LogP ≤ 5 3.70
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 84.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COCOc1ccccc1-c1cn(-c2ccc(C(=O)O)cc2)cc1C#N
InChI 
InChI=1S/C20H16N2O4/c1-25-13-26-19-5-3-2-4-17(19)18-12-22(11-15(18)10-21)16-8-6-14(7-9-16)20(23)24/h2-9,11-12H,13H2,1H3,(H,23,24)
InChIKey 
MKLSJVNXTWNBHQ-UHFFFAOYSA-N

Provenance

Annotation context from LigQ_2, the internal TPW step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Source
ChEMBL
Activity
300150
Curation
pdb_similarity_tanimoto
Binding sites
PF02738' 'PF20256

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other binders for this protein

Quick navigation to other ligands bound to PA1523.

PDB 20

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ChEMBL 99

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 50

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)