Ligand profile

CHEMBL3913249

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_4063 — hypothetical protein

Via homolog UniProt Q9BPX1 Formula C₁₈H₁₁F₂NO₄
pchembl 7.96 ~11.0 nM
Mol. weight 343.29 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL3913249
UniProt (similar protein)
Q9BPX1
pchembl
7.960 (~11.0 nM)
Target protein
VK055_4063

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 343.29 Da
LogP (Crippen) 3.37
H-bond donors 3
H-bond acceptors 5
TPSA 90.65 Ų
Rotatable bonds 3
Aromatic rings 3 / 3
Heavy atoms 25
Fraction sp³ C 0.00
Formula C₁₈H₁₁F₂NO₄

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 90.7
  • −1 ≤ LogP ≤ 5 3.37
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 343.3
  • LogP ≤ 5 3.37
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 90.7
PAINS Alert

Matches PAINS filter: catechol_A(92). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C(c1cccc(-c2cccc(O)c2F)n1)c1ccc(F)c(O)c1O
InChI 
InChI=1S/C18H11F2NO4/c19-11-8-7-10(17(24)18(11)25)16(23)13-5-2-4-12(21-13)9-3-1-6-14(22)15(9)20/h1-8,22,24-25H
InChIKey 
ACRZIJAMHSRKJJ-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
Activity
Active
Binding sites
PF13561

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_4063.

PDB 9

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

Ligand PDB entry

ChEMBL 48

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)