Ligand profile

CHEMBL4760820

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_03859 — Dihydroorotate dehydrogenase

Via homolog UniProt Q02127 Formula C₂₁H₁₉N₃O₂
pchembl 9.00 ~1.0 nM
Mol. weight 345.40 Da
Permeability High
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4760820
UniProt (similar protein)
Q02127
pchembl
9.000 (~1.0 nM)
Target protein
KP13_03859

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 345.40 Da
LogP (Crippen) 4.64
H-bond donors 2
H-bond acceptors 3
TPSA 70.91 Ų
Rotatable bonds 3
Aromatic rings 4 / 4
Heavy atoms 26
Fraction sp³ C 0.14
Formula C₂₁H₁₉N₃O₂

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 70.9
  • −1 ≤ LogP ≤ 5 4.64
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 345.4
  • LogP ≤ 5 4.64
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 70.9
PAINS Alert

Matches PAINS filter: pyrrole_A(118). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1nc2c(C(=O)O)cc(-c3ccc(-n4c(C)ccc4C)cc3)cc2[nH]1
InChI 
InChI=1S/C21H19N3O2/c1-12-4-5-13(2)24(12)17-8-6-15(7-9-17)16-10-18(21(25)26)20-19(11-16)22-14(3)23-20/h4-11H,1-3H3,(H,22,23)(H,25,26)
InChIKey 
FFEWZJDIIOWZHG-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
ChEMBL
Activity
1045613
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 75

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

Ligand PDB entry

ChEMBL 99

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)