Ligand profile

ZINC359231

Virtual-screening candidate from ZINC.

Bound to: VK055_2558 — na+/H+ antiporter NhaA

Via homolog UniProt P13738 Formula C₁₈H₁₄N₂
Tanimoto 0.54
Mol. weight 258.32 Da
Permeability High
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC359231
UniProt (similar protein)
P13738
Tanimoto
0.541
Target protein
VK055_2558

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 258.32 Da
LogP (Crippen) 4.65
H-bond donors 1
H-bond acceptors 2
TPSA 24.39 Ų
Rotatable bonds 1
Aromatic rings 3 / 4
Heavy atoms 20
Fraction sp³ C 0.06
Formula C₁₈H₁₄N₂

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 24.4
  • −1 ≤ LogP ≤ 5 4.65
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 258.3
  • LogP ≤ 5 4.65
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 24.4
PAINS Alert

Matches PAINS filter: naphth_amino_A(25). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1ccc(-c2nc3cccc4cccc([nH]2)c43)cc1
InChI 
InChI=1S/C18H14N2/c1-12-8-10-14(11-9-12)18-19-15-6-2-4-13-5-3-7-16(20-18)17(13)15/h2-11H,1H3,(H,19,20)
InChIKey 
VQHBDGIIHYIOAB-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
1PK
Homolog
P13738

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_2558.

ChEMBL 1

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

Compound Potency (pchembl)

ZINC 24

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

Compound Similarity (Tanimoto)