Ligand profile

CHEMBL333696

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01960 — Dihydrofolate reductase

Via homolog UniProt P0ABQ4 Formula C₁₅H₂₁N₅
pchembl 8.49 ~3.2 nM
Mol. weight 271.37 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL333696
UniProt (similar protein)
P0ABQ4
pchembl
8.490 (~3.2 nM)
Target protein
KP13_01960

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 271.37 Da
LogP (Crippen) 1.94
H-bond donors 3
H-bond acceptors 5
TPSA 103.84 Ų
Rotatable bonds 4
Aromatic rings 2 / 2
Heavy atoms 20
Fraction sp³ C 0.33
Formula C₁₅H₂₁N₅

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 103.8
  • −1 ≤ LogP ≤ 5 1.94
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 271.4
  • LogP ≤ 5 1.94
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 103.8
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCc1cc(Cc2cnc(N)nc2N)cc(CC)c1N
InChI 
InChI=1S/C15H21N5/c1-3-10-5-9(6-11(4-2)13(10)16)7-12-8-19-15(18)20-14(12)17/h5-6,8H,3-4,7,16H2,1-2H3,(H4,17,18,19,20)
InChIKey 
UDGOYMGWKIELFJ-UHFFFAOYSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ sequence
Source
ChEMBL
Binding sites
PF00186

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_01960.

PDB 34

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)