Ligand profile

CHEMBL4754781

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_03630 — Acriflavine resistance protein B

Via homolog UniProt P31224 Formula C₁₅H₁₇N₃O₃
Mol. weight 287.32 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4754781
UniProt (similar protein)
P31224
Target protein
KP13_03630

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 287.32 Da
LogP (Crippen) 1.23
H-bond donors 5
H-bond acceptors 5
TPSA 121.60 Ų
Rotatable bonds 4
Aromatic rings 2 / 2
Heavy atoms 21
Fraction sp³ C 0.13
Formula C₁₅H₁₇N₃O₃

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 121.6
  • −1 ≤ LogP ≤ 5 1.23
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 287.3
  • LogP ≤ 5 1.23
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 121.6
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 
Nc1cc(N)cc(C(=O)NCCc2ccc(O)c(O)c2)c1
InChI 
InChI=1S/C15H17N3O3/c16-11-6-10(7-12(17)8-11)15(21)18-4-3-9-1-2-13(19)14(20)5-9/h1-2,5-8,19-20H,3-4,16-17H2,(H,18,21)
InChIKey 
NSGAOQWBIFDADD-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)