Ligand profile

ZINC75491439

Virtual-screening candidate from ZINC.

Bound to: VK055_4603 — RNA polymerase sigma factor RpoE

Via homolog UniProt Q06198 Formula C₁₀H₈N₂OS
Tanimoto 0.51
Mol. weight 204.25 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC75491439
UniProt (similar protein)
Q06198
Tanimoto
0.514
Target protein
VK055_4603

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 204.25 Da
LogP (Crippen) 1.96
H-bond donors 1
H-bond acceptors 4
TPSA 55.98 Ų
Rotatable bonds 2
Aromatic rings 2 / 2
Heavy atoms 14
Fraction sp³ C 0.00
Formula C₁₀H₈N₂OS

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 56.0
  • −1 ≤ LogP ≤ 5 1.96
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 204.3
  • LogP ≤ 5 1.96
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 56.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Nc1sccc1C(=O)c1cccnc1
InChI 
InChI=1S/C10H8N2OS/c11-10-8(3-5-14-10)9(13)7-2-1-4-12-6-7/h1-6H,11H2
InChIKey 
CAHNBJDMIGTRNP-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Query
NCA
Homolog
Q06198

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_4603.

PDB 1

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

Ligand PDB entry

ZINC 49

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

Compound Similarity (Tanimoto)