Ligand profile

CHEMBL176489

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01960 — Dihydrofolate reductase

Via homolog UniProt P0ABQ4 Formula C₁₆H₂₁ClN₄O₃
pchembl 8.30 ~5.0 nM
Mol. weight 352.82 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL176489
UniProt (similar protein)
P0ABQ4
pchembl
8.300 (~5.0 nM)
Target protein
KP13_01960

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 352.82 Da
LogP (Crippen) 2.26
H-bond donors 2
H-bond acceptors 7
TPSA 105.51 Ų
Rotatable bonds 8
Aromatic rings 2 / 2
Heavy atoms 24
Fraction sp³ C 0.38
Formula C₁₆H₂₁ClN₄O₃

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 105.5
  • −1 ≤ LogP ≤ 5 2.26
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 352.8
  • LogP ≤ 5 2.26
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 7
Veber's rules Pass
  • Rotatable bonds ≤ 10 8
  • TPSA ≤ 140 Ų 105.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OCCCCl
InChI 
InChI=1S/C16H21ClN4O3/c1-22-12-7-10(6-11-9-20-16(19)21-15(11)18)8-13(23-2)14(12)24-5-3-4-17/h7-9H,3-6H2,1-2H3,(H4,18,19,20,21)
InChIKey 
ROAWFYCFJHYCMG-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)