Ligand profile

CHEMBL4469488

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_03495 — Histone deacetylase superfamily protein

Via homolog UniProt Q9Z2V5 Formula C₁₃H₁₁Cl₂N₃O₄
Mol. weight 344.15 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4469488
UniProt (similar protein)
Q9Z2V5
Target protein
KP13_03495

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 344.15 Da
LogP (Crippen) 2.07
H-bond donors 3
H-bond acceptors 5
TPSA 104.46 Ų
Rotatable bonds 5
Aromatic rings 2 / 2
Heavy atoms 22
Fraction sp³ C 0.15
Formula C₁₃H₁₁Cl₂N₃O₄

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 104.5
  • −1 ≤ LogP ≤ 5 2.07
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 344.2
  • LogP ≤ 5 2.07
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 104.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C(NCCc1cc(C(=O)NO)no1)c1ccc(Cl)c(Cl)c1
InChI 
InChI=1S/C13H11Cl2N3O4/c14-9-2-1-7(5-10(9)15)12(19)16-4-3-8-6-11(18-22-8)13(20)17-21/h1-2,5-6,21H,3-4H2,(H,16,19)(H,17,20)
InChIKey 
JFGOILLZIAIYGA-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Source
ChEMBL
Activity
Active
Curation
pdb_similarity_tanimoto
Binding sites
PF00850

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_03495.

PDB 46

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

Ligand PDB entry

ChEMBL 54

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)