Ligand profile

0N5

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

Bound to: VK055_3340 — UDP-N-acetylglucosamine diphosphorylase/glucosamine-1-phosphate N-acetyltransferase

Via homolog PDB 4e1k UniProt P43889 Formula C₂₂H₁₈N₄O₃
Mol. weight 386.41 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
0N5
PDB
4e1k
UniProt (similar protein)
P43889
Target protein
VK055_3340

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 386.41 Da
LogP (Crippen) 4.34
H-bond donors 3
H-bond acceptors 6
TPSA 96.37 Ų
Rotatable bonds 5
Aromatic rings 4 / 4
Heavy atoms 29
Fraction sp³ C 0.05
Formula C₂₂H₁₈N₄O₃

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy Check

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 96.4
  • −1 ≤ LogP ≤ 5 4.34
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 386.4
  • LogP ≤ 5 4.34
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 96.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cc2c(cc1O)ncnc2Nc3ccc(cc3)NC(=O)c4ccccc4
InChI 
InChI=1S/C22H18N4O3/c1-29-20-11-17-18(12-19(20)27)23-13-24-21(17)25-15-7-9-16(10-8-15)26-22(28)14-5-3-2-4-6-14/h2-13,27H,1H3,(H,26,28)(H,23,24,25)
InChIKey 
FRAOYGZBTRQIIP-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
PF12804

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_3340.

PDB 11

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

Ligand PDB entry

ChEMBL 35

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)