Ligand profile

CHEMBL4549681

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_02726 — S-adenosylmethionine synthase

Via homolog UniProt P31153 Formula C₂₅H₂₄N₆O
pchembl 7.35 ~44.7 nM
Mol. weight 424.51 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4549681
UniProt (similar protein)
P31153
pchembl
7.350 (~44.7 nM)
Target protein
KP13_02726

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 424.51 Da
LogP (Crippen) 4.53
H-bond donors 2
H-bond acceptors 5
TPSA 82.08 Ų
Rotatable bonds 3
Aromatic rings 5 / 6
Heavy atoms 32
Fraction sp³ C 0.24
Formula C₂₅H₂₄N₆O

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 82.1
  • −1 ≤ LogP ≤ 5 4.53
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 424.5
  • LogP ≤ 5 4.53
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 82.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1[nH]c2c(N3CCCCC3)c(-c3ccccc3)nn2c(=O)c1-c1ccc2[nH]cnc2c1
InChI 
InChI=1S/C25H24N6O/c1-16-21(18-10-11-19-20(14-18)27-15-26-19)25(32)31-24(28-16)23(30-12-6-3-7-13-30)22(29-31)17-8-4-2-5-9-17/h2,4-5,8-11,14-15,28H,3,6-7,12-13H2,1H3,(H,26,27)
InChIKey 
ZLMBSLZGPFVFHS-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)