Ligand profile

ZINC281559

Virtual-screening candidate from ZINC.

Bound to: VK055_1987 — oxygen-insensitive NAD(P)H nitroreductase

Via homolog UniProt Q01234 Formula C₁₄H₉NO₅
Tanimoto 0.88
Mol. weight 271.23 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC281559
UniProt (similar protein)
Q01234
Tanimoto
0.875
Target protein
VK055_1987

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 271.23 Da
LogP (Crippen) 2.52
H-bond donors 1
H-bond acceptors 4
TPSA 97.51 Ų
Rotatable bonds 4
Aromatic rings 2 / 2
Heavy atoms 20
Fraction sp³ C 0.00
Formula C₁₄H₉NO₅

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 97.5
  • −1 ≤ LogP ≤ 5 2.52
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 271.2
  • LogP ≤ 5 2.52
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 97.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C(O)c1ccc(C(=O)c2ccc([N+](=O)[O-])cc2)cc1
InChI 
InChI=1S/C14H9NO5/c16-13(9-1-3-11(4-2-9)14(17)18)10-5-7-12(8-6-10)15(19)20/h1-8H,(H,17,18)
InChIKey 
FGGHZEMNYJKTDV-UHFFFAOYSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Query
4NB
Homolog
Q01234

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_1987.

PDB 15

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

Ligand PDB entry

ZINC 49

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

Compound Similarity (Tanimoto)