Ligand profile

97Z

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

Bound to: VK055_3566 — ankyrin repeat family protein

Via homolog PDB 5nt4 UniProt Q9H2K2 Formula C₁₈H₁₇N₃O₂
Mol. weight 307.35 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
97Z
PDB
5nt4
UniProt (similar protein)
Q9H2K2
Target protein
VK055_3566

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 307.35 Da
LogP (Crippen) 2.43
H-bond donors 1
H-bond acceptors 4
TPSA 58.22 Ų
Rotatable bonds 2
Aromatic rings 3 / 4
Heavy atoms 23
Fraction sp³ C 0.22
Formula C₁₈H₁₇N₃O₂

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 58.2
  • −1 ≤ LogP ≤ 5 2.43
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 307.4
  • LogP ≤ 5 2.43
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 58.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc2c(c1)C(=O)NC(=N2)c3ccc(cc3)N4CCOCC4
InChI 
InChI=1S/C18H17N3O2/c22-18-15-3-1-2-4-16(15)19-17(20-18)13-5-7-14(8-6-13)21-9-11-23-12-10-21/h1-8H,9-12H2,(H,19,20,22)
InChIKey 
PMAAMDFJMLGNBG-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
PF00644

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to VK055_3566.

PDB 124

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

Ligand PDB entry

ChEMBL 100

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)