Ligand profile

ZST

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

Bound to: KP13_05149 — Lactoylglutathione lyase

Via homolog PDB 4kyh UniProt Q9CPU0 Formula C₁₉H₁₂F₃N₃O₃S
Mol. weight 419.38 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZST
PDB
4kyh
UniProt (similar protein)
Q9CPU0
Target protein
KP13_05149

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 419.38 Da
LogP (Crippen) 3.70
H-bond donors 1
H-bond acceptors 6
TPSA 85.08 Ų
Rotatable bonds 4
Aromatic rings 4 / 4
Heavy atoms 29
Fraction sp³ C 0.16
Formula C₁₉H₁₂F₃N₃O₃S

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 85.1
  • −1 ≤ LogP ≤ 5 3.70
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 419.4
  • LogP ≤ 5 3.70
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 85.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc2c(c1)C(=NN(C2=O)Cc3nc4cc(ccc4s3)C(F)(F)F)CC(=O)O
InChI 
InChI=1S/C19H12F3N3O3S/c20-19(21,22)10-5-6-15-14(7-10)23-16(29-15)9-25-18(28)12-4-2-1-3-11(12)13(24-25)8-17(26)27/h1-7H,8-9H2,(H,26,27)
InChIKey 
BCSVCWVQNOXFGL-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
PF00903

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_05149.

PDB 15

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

Ligand PDB entry

ChEMBL 61

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)