Ligand profile

A26

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

Bound to: VK055_1513 — dihydroorotate dehydrogenase

Via homolog PDB 1d3h UniProt Q02127 Formula C₁₂H₉F₃N₂O₂
Mol. weight 270.21 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
A26
PDB
1d3h
UniProt (similar protein)
Q02127
Target protein
VK055_1513

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 270.21 Da
LogP (Crippen) 3.00
H-bond donors 2
H-bond acceptors 3
TPSA 73.12 Ų
Rotatable bonds 2
Aromatic rings 1 / 1
Heavy atoms 19
Fraction sp³ C 0.17
Formula C₁₂H₉F₃N₂O₂

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 73.1
  • −1 ≤ LogP ≤ 5 3.00
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 270.2
  • LogP ≤ 5 3.00
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 73.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(=C(C#N)C(=O)Nc1ccc(cc1)C(F)(F)F)O
InChI 
InChI=1S/C12H9F3N2O2/c1-7(18)10(6-16)11(19)17-9-4-2-8(3-5-9)12(13,14)15/h2-5,18H,1H3,(H,17,19)
InChIKey 
UTNUDOFZCWSZMS-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)