Ligand profile

CHEMBL4761026

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_03630 — Acriflavine resistance protein B

Via homolog UniProt P31224 Formula C₁₅H₁₆N₂O₃
Mol. weight 272.30 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4761026
UniProt (similar protein)
P31224
Target protein
KP13_03630

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 272.30 Da
LogP (Crippen) 1.65
H-bond donors 4
H-bond acceptors 4
TPSA 95.58 Ų
Rotatable bonds 4
Aromatic rings 2 / 2
Heavy atoms 20
Fraction sp³ C 0.13
Formula C₁₅H₁₆N₂O₃

Drug-likeness

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

Permeability proxy Check

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

  • TPSA ≤ 90 Ų 95.6
  • −1 ≤ LogP ≤ 5 1.65
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 272.3
  • LogP ≤ 5 1.65
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 95.6
PAINS Alert

Matches PAINS filter: catechol_A(92). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Nc1ccccc1C(=O)NCCc1ccc(O)c(O)c1
InChI 
InChI=1S/C15H16N2O3/c16-12-4-2-1-3-11(12)15(20)17-8-7-10-5-6-13(18)14(19)9-10/h1-6,9,18-19H,7-8,16H2,(H,17,20)
InChIKey 
YCPQBKUJPIMIHC-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Source
ChEMBL
Activity
Active
Binding sites
PF00873

External resources

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

Other ligands for this protein

Quick navigation to other ligands bound to KP13_03630.

PDB 34

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

Ligand PDB entry

ChEMBL 52

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)