Ligand profile

JS3

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

Bound to: VK055_1513 — dihydroorotate dehydrogenase

Via homolog PDB 4js3 UniProt Q02127 Formula C₁₅H₁₁ClN₂OS
Mol. weight 302.79 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
JS3
PDB
4js3
UniProt (similar protein)
Q02127
Target protein
VK055_1513

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 302.79 Da
LogP (Crippen) 4.51
H-bond donors 1
H-bond acceptors 3
TPSA 41.99 Ų
Rotatable bonds 2
Aromatic rings 3 / 3
Heavy atoms 20
Fraction sp³ C 0.07
Formula C₁₅H₁₁ClN₂OS

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 42.0
  • −1 ≤ LogP ≤ 5 4.51
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 302.8
  • LogP ≤ 5 4.51
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 42.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1c(sc(n1)Cl)C(=O)Nc2ccc3ccccc3c2
InChI 
InChI=1S/C15H11ClN2OS/c1-9-13(20-15(16)17-9)14(19)18-12-7-6-10-4-2-3-5-11(10)8-12/h2-8H,1H3,(H,18,19)
InChIKey 
JUNYYPFCTFDDHR-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
PF01180

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to VK055_1513.

PDB 74

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)