Ligand profile

ZINC17919967

Virtual-screening candidate from ZINC.

Bound to: KP13_03284 — Endonuclease 8 bifunctional protein

Via homolog UniProt P42371 Formula C₈H₉N₅S
Tanimoto 0.56
Mol. weight 207.26 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC17919967
UniProt (similar protein)
P42371
Tanimoto
0.562
Target protein
KP13_03284

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 207.26 Da
LogP (Crippen) 1.28
H-bond donors 2
H-bond acceptors 5
TPSA 80.48 Ų
Rotatable bonds 0
Aromatic rings 2 / 2
Heavy atoms 14
Fraction sp³ C 0.25
Formula C₈H₉N₅S

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 80.5
  • −1 ≤ LogP ≤ 5 1.28
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 207.3
  • LogP ≤ 5 1.28
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 0
  • TPSA ≤ 140 Ų 80.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1nc2[nH]c(=S)nc(N)c2nc1C
InChI 
InChI=1S/C8H9N5S/c1-3-4(2)11-7-5(10-3)6(9)12-8(14)13-7/h1-2H3,(H3,9,11,12,13,14)
InChIKey 
MWCUMMXTOGUDNB-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
KD8
Homolog
P42371

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_03284.

PDB 7

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)