Ligand profile

TMG

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

Bound to: KP13_31481 — Fumarate reductase flavoprotein subunit

Via homolog PDB 3sfe UniProt Q0QF01 Formula C₁₀H₇N₃S
Mol. weight 201.25 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
TMG
PDB
3sfe
UniProt (similar protein)
Q0QF01
Target protein
KP13_31481

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 201.25 Da
LogP (Crippen) 2.69
H-bond donors 1
H-bond acceptors 3
TPSA 41.57 Ų
Rotatable bonds 1
Aromatic rings 3 / 3
Heavy atoms 14
Fraction sp³ C 0.00
Formula C₁₀H₇N₃S

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 41.6
  • −1 ≤ LogP ≤ 5 2.69
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 201.3
  • LogP ≤ 5 2.69
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 41.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc2c(c1)[nH]c(n2)c3cscn3
InChI 
InChI=1S/C10H7N3S/c1-2-4-8-7(3-1)12-10(13-8)9-5-14-6-11-9/h1-6H,(H,12,13)
InChIKey 
WJCNZQLZVWNLKY-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
PF01127' 'PF13534

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to KP13_31481.

PDB 35

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)