Ligand profile

E3N

Ligand co-crystallized with a similar protein (Protein Data Bank).

Bound to: VK055_0681 — alpha/beta hydrolase fold family protein

Via homolog PDB 6fr2 UniProt P34913 Formula C₂₁H₃₀F₃N₃O₅S
Mol. weight 493.55 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
E3N
PDB
6fr2
UniProt (similar protein)
P34913
Target protein
VK055_0681

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 493.55 Da
LogP (Crippen) 3.14
H-bond donors 2
H-bond acceptors 5
TPSA 96.97 Ų
Rotatable bonds 6
Aromatic rings 1 / 3
Heavy atoms 33
Fraction sp³ C 0.67
Formula C₂₁H₃₀F₃N₃O₅S

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 97.0
  • −1 ≤ LogP ≤ 5 3.14
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 493.5
  • LogP ≤ 5 3.14
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 97.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)S(=O)(=O)N1CCC2(CC1)C[C@H](CCO2)NC(=O)NCc3ccc(cc3)OC(F)(F)F
InChI 
InChI=1S/C21H30F3N3O5S/c1-15(2)33(29,30)27-10-8-20(9-11-27)13-17(7-12-31-20)26-19(28)25-14-16-3-5-18(6-4-16)32-21(22,23)24/h3-6,15,17H,7-14H2,1-2H3,(H2,25,26,28)/t17-/m0/s1
InChIKey 
BZTKUYQNORQBRG-KRWDZBQOSA-N

Provenance

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

Method
LigQ nearest_k
Source
PDB
Binding sites
PF00561

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_0681.

PDB 98

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 50

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

Compound Similarity (Tanimoto)