Ligand profile

CHEMBL194807

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_3684 — glycogen/starch/alpha-glucan phosphorylases family protein

Via homolog UniProt P11217 Formula C₂₁H₁₈N₄O₃
pchembl 6.92 ~120.2 nM
Mol. weight 374.40 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL194807
UniProt (similar protein)
P11217
pchembl
6.920 (~120.2 nM)
Target protein
VK055_3684

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 374.40 Da
LogP (Crippen) 3.20
H-bond donors 2
H-bond acceptors 6
TPSA 89.16 Ų
Rotatable bonds 5
Aromatic rings 4 / 4
Heavy atoms 28
Fraction sp³ C 0.10
Formula C₂₁H₁₈N₄O₃

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 89.2
  • −1 ≤ LogP ≤ 5 3.20
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 374.4
  • LogP ≤ 5 3.20
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 89.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cn1c(=O)c(Nc2ccc(C(=O)NCc3ccco3)cc2)nc2ccccc21
InChI 
InChI=1S/C21H18N4O3/c1-25-18-7-3-2-6-17(18)24-19(21(25)27)23-15-10-8-14(9-11-15)20(26)22-13-16-5-4-12-28-16/h2-12H,13H2,1H3,(H,22,26)(H,23,24)
InChIKey 
OLROYAINFFEFJQ-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
ChEMBL
Binding sites
PF00343

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_3684.

PDB 113

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

Ligand PDB entry

ChEMBL 99

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)