Ligand profile

Z5G

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

Bound to: KP13_04219 — ATP-binding/permease protein cydC

Via homolog PDB 7met UniProt A0A0B9X4I2 Formula C₁₆H₁₄ClNO₃S
Mol. weight 335.81 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
Z5G
PDB
7met
UniProt (similar protein)
A0A0B9X4I2
Target protein
KP13_04219

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 335.81 Da
LogP (Crippen) 4.23
H-bond donors 2
H-bond acceptors 3
TPSA 66.40 Ų
Rotatable bonds 3
Aromatic rings 2 / 3
Heavy atoms 22
Fraction sp³ C 0.25
Formula C₁₆H₁₄ClNO₃S

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 66.4
  • −1 ≤ LogP ≤ 5 4.23
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 335.8
  • LogP ≤ 5 4.23
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 66.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1C(=O)Nc2c(c3c(s2)CCCC3)C(=O)O)Cl
InChI 
InChI=1S/C16H14ClNO3S/c17-10-7-5-9(6-8-10)14(19)18-15-13(16(20)21)11-3-1-2-4-12(11)22-15/h5-8H,1-4H2,(H,18,19)(H,20,21)
InChIKey 
DUJFDTGMUKWELI-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
PDB
Binding sites
PF00664

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_04219.

PDB 3

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)