Ligand profile

CHEMBL4538283

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_02726 — S-adenosylmethionine synthase

Via homolog UniProt P31153 Formula C₃₁H₂₂N₆O₃
pchembl 7.00 ~100.0 nM
Mol. weight 526.56 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4538283
UniProt (similar protein)
P31153
pchembl
7.000 (~100.0 nM)
Target protein
KP13_02726

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 526.56 Da
LogP (Crippen) 4.62
H-bond donors 2
H-bond acceptors 6
TPSA 112.46 Ų
Rotatable bonds 5
Aromatic rings 6 / 7
Heavy atoms 40
Fraction sp³ C 0.06
Formula C₃₁H₂₂N₆O₃

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 112.5
  • −1 ≤ LogP ≤ 5 4.62
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 526.6
  • LogP ≤ 5 4.62
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 112.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C1CN(Cc2[nH]c3c(-c4ccccc4)c(-c4ccccc4)nn3c(=O)c2-c2ccc3ncccc3c2)C(=O)N1
InChI 
InChI=1S/C31H22N6O3/c38-25-18-36(31(40)34-25)17-24-26(22-13-14-23-21(16-22)12-7-15-32-23)30(39)37-29(33-24)27(19-8-3-1-4-9-19)28(35-37)20-10-5-2-6-11-20/h1-16,33H,17-18H2,(H,34,38,40)
InChIKey 
AUSIVGAANWCBSX-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)