Ligand profile

ZINC257166

Virtual-screening candidate from ZINC.

Bound to: KP13_03396 — 2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase

Via homolog UniProt G5EGA6 Formula C₁₆H₁₀N₄O₂
Tanimoto 0.59
Mol. weight 290.28 Da
Permeability High
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC257166
UniProt (similar protein)
G5EGA6
Tanimoto
0.593
Target protein
KP13_03396

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 290.28 Da
LogP (Crippen) 1.78
H-bond donors 2
H-bond acceptors 4
TPSA 82.92 Ų
Rotatable bonds 1
Aromatic rings 2 / 4
Heavy atoms 22
Fraction sp³ C 0.00
Formula C₁₆H₁₀N₄O₂

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy High

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 82.9
  • −1 ≤ LogP ≤ 5 1.78
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 290.3
  • LogP ≤ 5 1.78
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 82.9
PAINS Alert

Matches PAINS filter: imine_one_isatin(189). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C1Nc2ccccc2/C1=N\N=C1\C(=O)Nc2ccccc21
InChI 
InChI=1S/C16H10N4O2/c21-15-13(9-5-1-3-7-11(9)17-15)19-20-14-10-6-2-4-8-12(10)18-16(14)22/h1-8H,(H,17,19,21)(H,18,20,22)
InChIKey 
XDKUOJGAMATTFI-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
ISN
Homolog
G5EGA6

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_03396.

PDB 7

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)