Binder profile

NPO

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

Bound to: PA2256 — paerucumarin biosynthesis protein PvcC

Via homolog PDB 7e8p UniProt Q53008 C6H5NO3
Mol. weight 139.11 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
NPO
PDB
7e8p
UniProt (similar protein)
Q53008
Target protein
PA2256

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 139.11 Da
LogP (Crippen) 1.30
H-bond donors 1
H-bond acceptors 3
TPSA 63.37 Ų
Rotatable bonds 1
Aromatic rings 1 / 1
Heavy atoms 10
Fraction sp³ C 0.00
Formula C6H5NO3

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.

Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 139.1
  • LogP ≤ 5 1.30
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 63.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1[N+](=O)[O-])O
InChI 
InChI=1S/C6H5NO3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H
InChIKey 
BTJIUGUIPKRLHP-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Source
PDB
Binding sites
PF03241' 'PF11794

External resources

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

Other binders for this protein

Quick navigation to other ligands bound to PA2256.

PDB 2

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

Ligand PDB entry

ZINC 50

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)