Ligand profile

ZINC4013999

Virtual-screening candidate from ZINC.

Bound to: KP13_04258 — Oxygen-insensitive NADPH nitroreductase

Via homolog UniProt Q8X6S1 Formula C₉H₁₀N₄O₅
Tanimoto 0.73
Mol. weight 254.20 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC4013999
UniProt (similar protein)
Q8X6S1
Tanimoto
0.725
Target protein
KP13_04258

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 254.20 Da
LogP (Crippen) 0.67
H-bond donors 1
H-bond acceptors 6
TPSA 132.61 Ų
Rotatable bonds 4
Aromatic rings 1 / 1
Heavy atoms 18
Fraction sp³ C 0.22
Formula C₉H₁₀N₄O₅

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 132.6
  • −1 ≤ LogP ≤ 5 0.67
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 254.2
  • LogP ≤ 5 0.67
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 132.6
PAINS Alert

Matches PAINS filter: anil_di_alk_A(478). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CN(C)c1c(C(N)=O)cc([N+](=O)[O-])cc1[N+](=O)[O-]
InChI 
InChI=1S/C9H10N4O5/c1-11(2)8-6(9(10)14)3-5(12(15)16)4-7(8)13(17)18/h3-4H,1-2H3,(H2,10,14)
InChIKey 
SWFQINJGADVPDE-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
CHEMBL22592
Homolog
Q8X6S1

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)