Ligand profile

ZINC13669406

Virtual-screening candidate from ZINC.

Bound to: KP13_03018 — Imidazolonepropionase

Via homolog UniProt Q81WF0 Formula C₁₆H₂₄N₂O₃S
Tanimoto 0.74
Mol. weight 324.45 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC13669406
UniProt (similar protein)
Q81WF0
Tanimoto
0.744
Target protein
KP13_03018

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 324.45 Da
LogP (Crippen) 2.34
H-bond donors 0
H-bond acceptors 3
TPSA 57.69 Ų
Rotatable bonds 4
Aromatic rings 1 / 2
Heavy atoms 22
Fraction sp³ C 0.56
Formula C₁₆H₂₄N₂O₃S

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.

  • TPSA ≤ 90 Ų 57.7
  • −1 ≤ LogP ≤ 5 2.34
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 324.4
  • LogP ≤ 5 2.34
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 57.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCS(=O)(=O)N(C)c1ccc(C(=O)N2CCC[C@@H](C)C2)cc1
InChI 
InChI=1S/C16H24N2O3S/c1-4-22(20,21)17(3)15-9-7-14(8-10-15)16(19)18-11-5-6-13(2)12-18/h7-10,13H,4-6,11-12H2,1-3H3/t13-/m1/s1
InChIKey 
KZMFBGQEUULNBK-CYBMUJFWSA-N

Provenance

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

Method
LigQ nearest_k
Query
CHEMBL4532317
Homolog
Q81WF0

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_03018.

PDB 4

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

Ligand PDB entry

ChEMBL 3

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

Compound Potency (pchembl)

ZINC 49

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

Compound Similarity (Tanimoto)