Ligand profile

ZINC71772497

Virtual-screening candidate from ZINC.

Bound to: KP13_04258 — Oxygen-insensitive NADPH nitroreductase

Via homolog UniProt P17117 Formula C₉H₈N₄O₅
Tanimoto 0.62
Mol. weight 252.19 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC71772497
UniProt (similar protein)
P17117
Tanimoto
0.625
Target protein
KP13_04258

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 252.19 Da
LogP (Crippen) 0.42
H-bond donors 0
H-bond acceptors 6
TPSA 109.26 Ų
Rotatable bonds 3
Aromatic rings 1 / 2
Heavy atoms 18
Fraction sp³ C 0.22
Formula C₉H₈N₄O₅

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 109.3
  • −1 ≤ LogP ≤ 5 0.42
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 252.2
  • LogP ≤ 5 0.42
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 109.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CN1C(=O)CN(/N=C/c2ccc([N+](=O)[O-])o2)C1=O
InChI 
InChI=1S/C9H8N4O5/c1-11-7(14)5-12(9(11)15)10-4-6-2-3-8(18-6)13(16)17/h2-4H,5H2,1H3/b10-4+
InChIKey 
NBXVZOOCAKQIQZ-ONNFQVAWSA-N

Provenance

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

Method
LigQ nearest_k
Query
U6Z
Homolog
P17117

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to KP13_04258.

PDB 2

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

Ligand PDB entry

ChEMBL 5

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 49

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

Compound Similarity (Tanimoto)