Ligand profile

O4P

Ligand co-crystallized with a similar protein (Protein Data Bank).

Bound to: KP13_00363 — LpxA-like domain-containing transferase

Via homolog PDB 6p87 UniProt P21645 Formula C₂₃H₂₂N₂O₃S
Mol. weight 406.51 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
O4P
PDB
6p87
UniProt (similar protein)
P21645
Target protein
KP13_00363

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 406.51 Da
LogP (Crippen) 4.86
H-bond donors 1
H-bond acceptors 4
TPSA 54.56 Ų
Rotatable bonds 7
Aromatic rings 4 / 4
Heavy atoms 29
Fraction sp³ C 0.17
Formula C₂₃H₂₂N₂O₃S

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 54.6
  • −1 ≤ LogP ≤ 5 4.86
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 406.5
  • LogP ≤ 5 4.86
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 54.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CN([C@@H](c1cccs1)c2c[nH]c3c2cccc3)C(=O)COc4ccccc4OC
InChI 
InChI=1S/C23H22N2O3S/c1-25(22(26)15-28-20-11-6-5-10-19(20)27-2)23(21-12-7-13-29-21)17-14-24-18-9-4-3-8-16(17)18/h3-14,23-24H,15H2,1-2H3/t23-/m1/s1
InChIKey 
UMXDHOYRZISANE-HSZRJFAPSA-N

Provenance

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

Method
LigQ nearest_k
Source
PDB
Binding sites
PF00132

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_00363.

PDB 15

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

Ligand PDB entry

ZINC 50

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

Compound Similarity (Tanimoto)