Ligand profile

EWQ

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

Bound to: VK055_2684 — ribosyldihydronicotinamide dehydrogenase (quinone)

Via homolog PDB 3nfr UniProt P16083 Formula C₁₃H₁₅NO₃
Mol. weight 233.27 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
EWQ
PDB
3nfr
UniProt (similar protein)
P16083
Target protein
VK055_2684

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 233.27 Da
LogP (Crippen) 1.86
H-bond donors 0
H-bond acceptors 4
TPSA 40.46 Ų
Rotatable bonds 2
Aromatic rings 2 / 2
Heavy atoms 17
Fraction sp³ C 0.31
Formula C₁₃H₁₅NO₃

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 40.5
  • −1 ≤ LogP ≤ 5 1.86
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 233.3
  • LogP ≤ 5 1.86
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 40.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC1=CC(=O)N(c2c1cc(cc2OC)OC)C
InChI 
InChI=1S/C13H15NO3/c1-8-5-12(15)14(2)13-10(8)6-9(16-3)7-11(13)17-4/h5-7H,1-4H3
InChIKey 
BYYQQWLTZFBHIQ-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
PF02525

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_2684.

PDB 59

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)