Ligand profile

4VK

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

Bound to: VK055_1376 — 3-oxoacyl-[acyl-carrier-] synthase III family protein

Via homolog PDB 5bnm UniProt P0A6R0 Formula C₂₀H₁₉NO₃S
Mol. weight 353.44 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
4VK
PDB
5bnm
UniProt (similar protein)
P0A6R0
Target protein
VK055_1376

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 353.44 Da
LogP (Crippen) 3.32
H-bond donors 2
H-bond acceptors 3
TPSA 66.40 Ų
Rotatable bonds 6
Aromatic rings 3 / 3
Heavy atoms 25
Fraction sp³ C 0.10
Formula C₂₀H₁₉NO₃S

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 66.4
  • −1 ≤ LogP ≤ 5 3.32
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 353.4
  • LogP ≤ 5 3.32
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 66.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc(cc1)S(=O)(=O)NCc2ccc(cc2)c3cccc(c3)CO
InChI 
InChI=1S/C20H19NO3S/c22-15-17-5-4-6-19(13-17)18-11-9-16(10-12-18)14-21-25(23,24)20-7-2-1-3-8-20/h1-13,21-22H,14-15H2
InChIKey 
COEMTPKQUSKJIS-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Source
PDB
Binding sites
PF08541' 'PF08545

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_1376.

PDB 14

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

Ligand PDB entry

ChEMBL 22

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)