Ligand profile

NU4

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

Bound to: KP13_00203 — putative 8-amino-7-oxononanoate synthase/2-amino-3-ketobutyrate coenzyme A ligase

Via homolog PDB 5qqw UniProt P22557 Formula C₁₁H₁₀N₂O₂
Mol. weight 202.21 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
NU4
PDB
5qqw
UniProt (similar protein)
P22557
Target protein
KP13_00203

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 202.21 Da
LogP (Crippen) 2.24
H-bond donors 1
H-bond acceptors 3
TPSA 55.13 Ų
Rotatable bonds 2
Aromatic rings 2 / 2
Heavy atoms 15
Fraction sp³ C 0.09
Formula C₁₁H₁₀N₂O₂

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 55.1
  • −1 ≤ LogP ≤ 5 2.24
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 202.2
  • LogP ≤ 5 2.24
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 55.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1c(cco1)C(=O)Nc2ccncc2
InChI 
InChI=1S/C11H10N2O2/c1-8-10(4-7-15-8)11(14)13-9-2-5-12-6-3-9/h2-7H,1H3,(H,12,13,14)
InChIKey 
YQBDLYFUZJNLDH-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
PDB
Binding sites
PF00155

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_00203.

PDB 32

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

Ligand PDB entry

ChEMBL 1

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)