Ligand profile

CHEMBL5556562

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_02726 — S-adenosylmethionine synthase

Via homolog UniProt P31153 Formula C₁₉H₁₅ClN₄O
pchembl 7.36 ~43.7 nM
Mol. weight 350.81 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL5556562
UniProt (similar protein)
P31153
pchembl
7.360 (~43.7 nM)
Target protein
KP13_02726

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 350.81 Da
LogP (Crippen) 3.80
H-bond donors 0
H-bond acceptors 5
TPSA 52.71 Ų
Rotatable bonds 3
Aromatic rings 4 / 5
Heavy atoms 25
Fraction sp³ C 0.21
Formula C₁₉H₁₅ClN₄O

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 3.80
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 350.8
  • LogP ≤ 5 3.80
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 52.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=c1c2nn(CC3CC3)cc2c2ccc(Cl)cc2n1-c1cccnc1
InChI 
InChI=1S/C19H15ClN4O/c20-13-5-6-15-16-11-23(10-12-3-4-12)22-18(16)19(25)24(17(15)8-13)14-2-1-7-21-9-14/h1-2,5-9,11-12H,3-4,10H2
InChIKey 
STOUODMFHOMKAG-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' '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)