Ligand profile

R4N

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

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

Via homolog PDB 5alg UniProt P34913 Formula C₂₅H₂₁ClN₂O₄S
Mol. weight 480.97 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
R4N
PDB
5alg
UniProt (similar protein)
P34913
Target protein
VK055_0681

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 480.97 Da
LogP (Crippen) 4.55
H-bond donors 1
H-bond acceptors 5
TPSA 67.87 Ų
Rotatable bonds 5
Aromatic rings 3 / 5
Heavy atoms 33
Fraction sp³ C 0.20
Formula C₂₅H₂₁ClN₂O₄S

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 67.9
  • −1 ≤ LogP ≤ 5 4.55
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 481.0
  • LogP ≤ 5 4.55
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 67.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc2c(c1)OC[C@@H](O2)CNC(=O)c3ccc4c(c3)N(C(=O)CS4)Cc5cccc(c5)Cl
InChI 
InChI=1S/C25H21ClN2O4S/c26-18-5-3-4-16(10-18)13-28-20-11-17(8-9-23(20)33-15-24(28)29)25(30)27-12-19-14-31-21-6-1-2-7-22(21)32-19/h1-11,19H,12-15H2,(H,27,30)/t19-/m0/s1
InChIKey 
JDJXOOKBURTXCO-IBGZPJMESA-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)