Ligand profile

2O8

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

Bound to: KP13_03130 — Dihydropteroate synthase type-1

Via homolog PDB 4nil UniProt Q81VW8 Formula C₈H₆F₃NOS
Mol. weight 221.20 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
2O8
PDB
4nil
UniProt (similar protein)
Q81VW8
Target protein
KP13_03130

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 221.20 Da
LogP (Crippen) 2.40
H-bond donors 1
H-bond acceptors 2
TPSA 43.09 Ų
Rotatable bonds 2
Aromatic rings 1 / 1
Heavy atoms 14
Fraction sp³ C 0.12
Formula C₈H₆F₃NOS

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 43.1
  • −1 ≤ LogP ≤ 5 2.40
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 221.2
  • LogP ≤ 5 2.40
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 43.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1C(=O)N)SC(F)(F)F
InChI 
InChI=1S/C8H6F3NOS/c9-8(10,11)14-6-3-1-5(2-4-6)7(12)13/h1-4H,(H2,12,13)
InChIKey 
ILYWYSLTZOUSID-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
PF00809

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_03130.

PDB 46

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

Ligand PDB entry

ChEMBL 26

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

Compound Potency (pchembl)

ZINC 50

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

Compound Similarity (Tanimoto)