Ligand profile

4R5

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

Bound to: KP13_03859 — Dihydroorotate dehydrogenase

Via homolog PDB 4zmg UniProt Q02127 Formula C₁₇H₁₃F₂N₃O₂S
Mol. weight 361.37 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
4R5
PDB
4zmg
UniProt (similar protein)
Q02127
Target protein
KP13_03859

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 361.37 Da
LogP (Crippen) 4.74
H-bond donors 2
H-bond acceptors 4
TPSA 63.25 Ų
Rotatable bonds 4
Aromatic rings 3 / 3
Heavy atoms 25
Fraction sp³ C 0.06
Formula C₁₇H₁₃F₂N₃O₂S

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 63.2
  • −1 ≤ LogP ≤ 5 4.74
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 361.4
  • LogP ≤ 5 4.74
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 63.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cccc(c1)c2cc(c(c(c2)F)NC(=O)Nc3cncs3)F
InChI 
InChI=1S/C17H13F2N3O2S/c1-24-12-4-2-3-10(5-12)11-6-13(18)16(14(19)7-11)22-17(23)21-15-8-20-9-25-15/h2-9H,1H3,(H2,21,22,23)
InChIKey 
FLPJNPHNEKGCBD-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
PF01180

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_03859.

PDB 74

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

Ligand PDB entry

ChEMBL 100

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)