Ligand profile

NRN

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_04751 — Adenosylhomocysteinase

Via homolog UniProt P23526 Formula C₁₀H₁₃N₅O₃
pchembl 6.80 ~158.5 nM
Mol. weight 251.25 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
NRN
UniProt (similar protein)
P23526
pchembl
6.800 (~158.5 nM)
Target protein
KP13_04751

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 251.25 Da
LogP (Crippen) -1.56
H-bond donors 4
H-bond acceptors 8
TPSA 130.31 Ų
Rotatable bonds 1
Aromatic rings 2 / 3
Heavy atoms 18
Fraction sp³ C 0.50
Formula C₁₀H₁₃N₅O₃

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 130.3
  • −1 ≤ LogP ≤ 5 -1.56
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 251.2
  • LogP ≤ 5 -1.56
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 8
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 130.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1nc(c2c(n1)n(cn2)[C@@H]3C[C@@H]([C@H]([C@H]3O)O)O)N
InChI 
InChI=1S/C10H13N5O3/c11-9-6-10(13-2-12-9)15(3-14-6)4-1-5(16)8(18)7(4)17/h2-5,7-8,16-18H,1H2,(H2,11,12,13)/t4-,5+,7+,8-/m1/s1
InChIKey 
VFKHECGAEJNAMV-HETMPLHPSA-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)