Ligand profile

OR4

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

Bound to: VK055_1426 — DSBA-like thioredoxin domain protein

Via homolog PDB 6pml UniProt P0AEG4 Formula C₁₇H₁₄O₄
Mol. weight 282.29 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
OR4
PDB
6pml
UniProt (similar protein)
P0AEG4
Target protein
VK055_1426

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 282.29 Da
LogP (Crippen) 3.64
H-bond donors 1
H-bond acceptors 3
TPSA 59.67 Ų
Rotatable bonds 5
Aromatic rings 3 / 3
Heavy atoms 21
Fraction sp³ C 0.12
Formula C₁₇H₁₄O₄

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 59.7
  • −1 ≤ LogP ≤ 5 3.64
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 282.3
  • LogP ≤ 5 3.64
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 59.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc(cc1)COc2ccc3c(c2)occ3CC(=O)O
InChI 
InChI=1S/C17H14O4/c18-17(19)8-13-11-21-16-9-14(6-7-15(13)16)20-10-12-4-2-1-3-5-12/h1-7,9,11H,8,10H2,(H,18,19)
InChIKey 
VJEZHKLENQLLAZ-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
PF01323

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_1426.

PDB 25

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

Ligand PDB entry

ChEMBL 11

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)