Ligand profile

CHEMBL5561357

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_02726 — S-adenosylmethionine synthase

Via homolog UniProt P31153 Formula C₁₈H₁₅ClN₄O
pchembl 7.37 ~42.7 nM
Mol. weight 338.80 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL5561357
UniProt (similar protein)
P31153
pchembl
7.370 (~42.7 nM)
Target protein
KP13_02726

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 338.80 Da
LogP (Crippen) 3.97
H-bond donors 0
H-bond acceptors 5
TPSA 52.71 Ų
Rotatable bonds 2
Aromatic rings 4 / 4
Heavy atoms 24
Fraction sp³ C 0.17
Formula C₁₈H₁₅ClN₄O

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 52.7
  • −1 ≤ LogP ≤ 5 3.97
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 338.8
  • LogP ≤ 5 3.97
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 52.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)n1cc2c(n1)c(=O)n(-c1cccnc1)c1cc(Cl)ccc21
InChI 
InChI=1S/C18H15ClN4O/c1-11(2)22-10-15-14-6-5-12(19)8-16(14)23(18(24)17(15)21-22)13-4-3-7-20-9-13/h3-11H,1-2H3
InChIKey 
YQISECAUVKBUIL-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
Curation
pdb_similarity_tanimoto
Binding sites
PF00438' 'PF02772' 'PF02773

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_02726.

PDB 20

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)