Ligand profile

CHEMBL3408926

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_0782 — FAD binding domain protein

Via homolog UniProt P21397 Formula C₂₅H₂₂N₄O₃
pchembl 8.80 ~1.6 nM
Mol. weight 426.48 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL3408926
UniProt (similar protein)
P21397
pchembl
8.800 (~1.6 nM)
Target protein
VK055_0782

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 426.48 Da
LogP (Crippen) 3.23
H-bond donors 2
H-bond acceptors 6
TPSA 96.58 Ų
Rotatable bonds 6
Aromatic rings 4 / 4
Heavy atoms 32
Fraction sp³ C 0.12
Formula C₂₅H₂₂N₄O₃

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 96.6
  • −1 ≤ LogP ≤ 5 3.23
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 426.5
  • LogP ≤ 5 3.23
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 96.6
PAINS Alert

Matches PAINS filter: hzone_phenol_B(215). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C/C(=N\NC(=O)Cn1c(=O)c(Cc2ccccc2)nc2ccccc21)c1ccc(O)cc1
InChI 
InChI=1S/C25H22N4O3/c1-17(19-11-13-20(30)14-12-19)27-28-24(31)16-29-23-10-6-5-9-21(23)26-22(25(29)32)15-18-7-3-2-4-8-18/h2-14,30H,15-16H2,1H3,(H,28,31)/b27-17+
InChIKey 
IBLIJNULMVZBHH-WPWMEQJKSA-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
PF01593

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_0782.

PDB 4

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)