Ligand profile

CHEMBL281476

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_04751 — Adenosylhomocysteinase

Via homolog UniProt P23526 Formula C₁₀H₁₁N₅O₄
pchembl 8.48 ~3.3 nM
Mol. weight 265.23 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL281476
UniProt (similar protein)
P23526
pchembl
8.480 (~3.3 nM)
Target protein
KP13_04751

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 265.23 Da
LogP (Crippen) -1.32
H-bond donors 2
H-bond acceptors 9
TPSA 133.22 Ų
Rotatable bonds 6
Aromatic rings 2 / 2
Heavy atoms 19
Fraction sp³ C 0.30
Formula C₁₀H₁₁N₅O₄

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 133.2
  • −1 ≤ LogP ≤ 5 -1.32
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 265.2
  • LogP ≤ 5 -1.32
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 9
Veber's rules Pass
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 133.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Nc1ncnc2c1ncn2C(C=O)OC(C=O)CO
InChI 
InChI=1S/C10H11N5O4/c11-9-8-10(13-4-12-9)15(5-14-8)7(3-18)19-6(1-16)2-17/h1,3-7,17H,2H2,(H2,11,12,13)
InChIKey 
ILMNSCQOSGKTNZ-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
PF00670' 'PF05221

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_04751.

PDB 7

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)