Ligand profile

ZINC13534752

Virtual-screening candidate from ZINC.

Bound to: KP13_04217 — Thioredoxin reductase

Via homolog UniProt C4LW95 Formula C₁₇H₁₅NO₄S₂
Tanimoto 0.71
Mol. weight 361.44 Da
Permeability High
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC13534752
UniProt (similar protein)
C4LW95
Tanimoto
0.710
Target protein
KP13_04217

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 361.44 Da
LogP (Crippen) 3.70
H-bond donors 0
H-bond acceptors 6
TPSA 51.91 Ų
Rotatable bonds 5
Aromatic rings 2 / 3
Heavy atoms 24
Fraction sp³ C 0.18
Formula C₁₇H₁₅NO₄S₂

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 51.9
  • −1 ≤ LogP ≤ 5 3.70
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 361.4
  • LogP ≤ 5 3.70
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 51.9
PAINS Alert

Matches PAINS filter: ene_rhod_A(235). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1ccc(OC)c(/C=C2\SC(=S)N(Cc3ccco3)C2=O)c1
InChI 
InChI=1S/C17H15NO4S2/c1-20-12-5-6-14(21-2)11(8-12)9-15-16(19)18(17(23)24-15)10-13-4-3-7-22-13/h3-9H,10H2,1-2H3/b15-9-
InChIKey 
TZZKIRMXMQSYQS-DHDCSXOGSA-N

Provenance

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

Method
LigQ nearest_k
Query
CHEMBL3968421
Homolog
C4LW95

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_04217.

PDB 5

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

Ligand PDB entry

ChEMBL 16

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 49

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

Compound Similarity (Tanimoto)