Ligand profile

03U

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

Bound to: VK055_1513 — dihydroorotate dehydrogenase

Via homolog PDB 3u2o UniProt Q02127 Formula C₂₀H₁₇FN₂O₄
Mol. weight 368.36 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
03U
PDB
3u2o
UniProt (similar protein)
Q02127
Target protein
VK055_1513

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 368.36 Da
LogP (Crippen) 3.96
H-bond donors 2
H-bond acceptors 5
TPSA 99.42 Ų
Rotatable bonds 5
Aromatic rings 2 / 2
Heavy atoms 27
Fraction sp³ C 0.15
Formula C₂₀H₁₇FN₂O₄

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy Check

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 99.4
  • −1 ≤ LogP ≤ 5 3.96
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 368.4
  • LogP ≤ 5 3.96
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 99.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCC(=C(C#N)C(=O)Nc1ccc(c(c1)C(=O)OC)c2ccc(cc2)F)O
InChI 
InChI=1S/C20H17FN2O4/c1-3-18(24)17(11-22)19(25)23-14-8-9-15(16(10-14)20(26)27-2)12-4-6-13(21)7-5-12/h4-10,24H,3H2,1-2H3,(H,23,25)
InChIKey 
IYKUBGQVTQQVJG-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 VK055_1513.

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)