Ligand profile

6QK

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

Bound to: VK055_0407 — acetolactate synthase, catabolic

Via homolog PDB 5k2o UniProt P17597 Formula C₁₃H₁₁ClN₂O₄S
Mol. weight 326.76 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
6QK
PDB
5k2o
UniProt (similar protein)
P17597
Target protein
VK055_0407

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 326.76 Da
LogP (Crippen) 3.00
H-bond donors 1
H-bond acceptors 6
TPSA 81.54 Ų
Rotatable bonds 5
Aromatic rings 2 / 2
Heavy atoms 21
Fraction sp³ C 0.15
Formula C₁₃H₁₁ClN₂O₄S

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 81.5
  • −1 ≤ LogP ≤ 5 3.00
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 326.8
  • LogP ≤ 5 3.00
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 81.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cc(nc(n1)Sc2cccc(c2C(=O)O)Cl)OC
InChI 
InChI=1S/C13H11ClN2O4S/c1-19-9-6-10(20-2)16-13(15-9)21-8-5-3-4-7(14)11(8)12(17)18/h3-6H,1-2H3,(H,17,18)
InChIKey 
QEGVVEOAVNHRAA-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
PDB
Binding sites
PF00205' 'PF02775' 'PF02776

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_0407.

PDB 38

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

Ligand PDB entry

ChEMBL 37

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)