Ligand profile

4CH

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

Bound to: KP13_00051 — DNA gyrase subunit B

Via homolog PDB 7dqw UniProt P0AES6 Formula C₆H₅ClO
Mol. weight 128.56 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
4CH
PDB
7dqw
UniProt (similar protein)
P0AES6
Target protein
KP13_00051

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 128.56 Da
LogP (Crippen) 2.05
H-bond donors 1
H-bond acceptors 1
TPSA 20.23 Ų
Rotatable bonds 0
Aromatic rings 1 / 1
Heavy atoms 8
Fraction sp³ C 0.00
Formula C₆H₅ClO

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 20.2
  • −1 ≤ LogP ≤ 5 2.05
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 128.6
  • LogP ≤ 5 2.05
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 1
Veber's rules Pass
  • Rotatable bonds ≤ 10 0
  • TPSA ≤ 140 Ų 20.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1O)Cl
InChI 
InChI=1S/C6H5ClO/c7-5-1-3-6(8)4-2-5/h1-4,8H
InChIKey 
WXNZTHHGJRFXKQ-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Source
PDB
Binding sites
PF02518

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_00051.

PDB 87

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

Ligand PDB entry

ChEMBL 100

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)