Ligand profile

EXG

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

Bound to: VK055_3495 — pantetheine-phosphate adenylyltransferase

Via homolog PDB 6ccl UniProt P0A6I6 Formula C₁₃H₁₁N₃
Mol. weight 209.25 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
EXG
PDB
6ccl
UniProt (similar protein)
P0A6I6
Target protein
VK055_3495

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 209.25 Da
LogP (Crippen) 2.48
H-bond donors 0
H-bond acceptors 3
TPSA 30.71 Ų
Rotatable bonds 2
Aromatic rings 3 / 3
Heavy atoms 16
Fraction sp³ C 0.08
Formula C₁₃H₁₁N₃

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 30.7
  • −1 ≤ LogP ≤ 5 2.48
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 209.3
  • LogP ≤ 5 2.48
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 30.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc(cc1)Cn2cnc3c2cccn3
InChI 
InChI=1S/C13H11N3/c1-2-5-11(6-3-1)9-16-10-15-13-12(16)7-4-8-14-13/h1-8,10H,9H2
InChIKey 
AHFFRONGQSRICB-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
PF01467

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_3495.

PDB 21

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

Ligand PDB entry

ZINC 50

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)