Ligand profile

S16

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_4646 — aminopeptidase B

Via homolog UniProt Q8IL11 Formula C₁₄H₁₁ClN₂O₃
Mol. weight 290.71 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
S16
UniProt (similar protein)
Q8IL11
Target protein
VK055_4646

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 290.71 Da
LogP (Crippen) 3.68
H-bond donors 3
H-bond acceptors 2
TPSA 78.43 Ų
Rotatable bonds 3
Aromatic rings 2 / 2
Heavy atoms 20
Fraction sp³ C 0.00
Formula C₁₄H₁₁ClN₂O₃

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 78.4
  • −1 ≤ LogP ≤ 5 3.68
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 290.7
  • LogP ≤ 5 3.68
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 78.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(cc(c1)NC(=O)Nc2ccc(cc2)Cl)C(=O)O
InChI 
InChI=1S/C14H11ClN2O3/c15-10-4-6-11(7-5-10)16-14(20)17-12-3-1-2-9(8-12)13(18)19/h1-8H,(H,18,19)(H2,16,17,20)
InChIKey 
QZVLALCHSFACLK-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Source
ChEMBL
Activity
Active
Binding sites
PF00883

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 99

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

Compound Potency (pchembl)

ZINC 50

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

Compound Similarity (Tanimoto)