Ligand profile

ZINC13148152

Virtual-screening candidate from ZINC.

Bound to: VK055_4646 — aminopeptidase B

Via homolog UniProt Q8IL11 Formula C₂₅H₂₁N₃O₅
Tanimoto 0.87
Mol. weight 443.46 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC13148152
UniProt (similar protein)
Q8IL11
Tanimoto
0.865
Target protein
VK055_4646

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 443.46 Da
LogP (Crippen) 3.77
H-bond donors 2
H-bond acceptors 5
TPSA 108.71 Ų
Rotatable bonds 4
Aromatic rings 3 / 4
Heavy atoms 33
Fraction sp³ C 0.12
Formula C₂₅H₂₁N₃O₅

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 108.7
  • −1 ≤ LogP ≤ 5 3.77
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 443.5
  • LogP ≤ 5 3.77
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 108.7
PAINS Alert

Matches PAINS filter: ene_six_het_A(483). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1ccc(N2C(=O)NC(=O)/C(=C/c3cc(C)n(-c4ccc(C(=O)O)cc4)c3C)C2=O)cc1
InChI 
InChI=1S/C25H21N3O5/c1-14-4-8-20(9-5-14)28-23(30)21(22(29)26-25(28)33)13-18-12-15(2)27(16(18)3)19-10-6-17(7-11-19)24(31)32/h4-13H,1-3H3,(H,31,32)(H,26,29,33)/b21-13-
InChIKey 
UVYBUVXTOVILPS-BKUYFWCQSA-N

Provenance

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

Method
LigQ nearest_k
Query
CHEMBL1538427
Homolog
Q8IL11

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_4646.

PDB 10

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

Ligand PDB entry

ChEMBL 100

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)