Ligand profile

ADN

Ligand co-crystallized with a similar protein (Protein Data Bank).

Bound to: KP13_03562 — Glutamyl-tRNA synthetase

Via homolog PDB 4k87 UniProt P07814 Formula C₁₀H₁₃N₅O₄
Mol. weight 267.25 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ADN
PDB
4k87
UniProt (similar protein)
P07814
Target protein
KP13_03562

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 267.25 Da
LogP (Crippen) -1.98
H-bond donors 4
H-bond acceptors 9
TPSA 139.54 Ų
Rotatable bonds 2
Aromatic rings 2 / 3
Heavy atoms 19
Fraction sp³ C 0.50
Formula C₁₀H₁₃N₅O₄

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 139.5
  • −1 ≤ LogP ≤ 5 -1.98
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 267.2
  • LogP ≤ 5 -1.98
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 9
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 139.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO)O)O)N
InChI 
InChI=1S/C10H13N5O4/c11-8-5-9(13-2-12-8)15(3-14-5)10-7(18)6(17)4(1-16)19-10/h2-4,6-7,10,16-18H,1H2,(H2,11,12,13)/t4-,6-,7-,10-/m1/s1
InChIKey 
OIRDTQYFTABQOQ-KQYNXXCUSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Source
PDB
Binding sites
PF00587

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_03562.

PDB 9

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ChEMBL 3

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)