Ligand profile

PEO

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

Bound to: VK055_1428 — heme-containing peroxidase/deferrochelatase

Via homolog PDB 4grc UniProt Q9RKQ2 Formula H₂O₂
Mol. weight 34.01 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
PEO
PDB
4grc
UniProt (similar protein)
Q9RKQ2
Target protein
VK055_1428

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 34.01 Da
LogP (Crippen) 0.02
H-bond donors 2
H-bond acceptors 2
TPSA 40.46 Ų
Rotatable bonds 0
Aromatic rings 0 / 0
Heavy atoms 2
Fraction sp³ C 0.00
Formula H₂O₂

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 40.5
  • −1 ≤ LogP ≤ 5 0.02
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 34.0
  • LogP ≤ 5 0.02
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 0
  • TPSA ≤ 140 Ų 40.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
OO
InChI 
InChI=1S/H2O2/c1-2/h1-2H
InChIKey 
MHAJPDPJQMAIIY-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
PF20628

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_1428.

PDB 2

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

Ligand PDB entry