Ligand profile

HED

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

Bound to: VK055_0684 — ahpC/TSA family protein

Via homolog PDB 4hqz UniProt A0A0H2UPR5 Formula C₄H₁₀O₂S₂
Mol. weight 154.26 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
HED
PDB
4hqz
UniProt (similar protein)
A0A0H2UPR5
Target protein
VK055_0684

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 154.26 Da
LogP (Crippen) 0.35
H-bond donors 2
H-bond acceptors 4
TPSA 40.46 Ų
Rotatable bonds 5
Aromatic rings 0 / 0
Heavy atoms 8
Fraction sp³ C 1.00
Formula C₄H₁₀O₂S₂

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 40.5
  • −1 ≤ LogP ≤ 5 0.35
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 154.3
  • LogP ≤ 5 0.35
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 40.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C(CSSCCO)O
InChI 
InChI=1S/C4H10O2S2/c5-1-3-7-8-4-2-6/h5-6H,1-4H2
InChIKey 
KYNFOMQIXZUKRK-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
PF08534

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_0684.

PDB 3

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

Ligand PDB entry

ZINC 50

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

Compound Similarity (Tanimoto)