Binder profile

PYR

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

Bound to: PA1630 — transcriptional regulator

Via homolog PDB 2o9a UniProt P16528 C3H4O3
Mol. weight 88.06 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
PYR
PDB
2o9a
UniProt (similar protein)
P16528
Target protein
PA1630

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 88.06 Da
LogP (Crippen) -0.34
H-bond donors 1
H-bond acceptors 2
TPSA 54.37 Ų
Rotatable bonds 1
Aromatic rings 0 / 0
Heavy atoms 6
Fraction sp³ C 0.33
Formula C3H4O3

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 88.1
  • LogP ≤ 5 -0.34
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 54.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(=O)C(=O)O
InChI 
InChI=1S/C3H4O3/c1-2(4)3(5)6/h1H3,(H,5,6)
InChIKey 
LCTONWCANYUPML-UHFFFAOYSA-N

Provenance

Annotation context from LigQ_2 search.

Method
LigQ nearest_k
Source
PDB
Binding sites
PF01614

External resources

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

Other binders for this protein

Quick navigation to other ligands bound to PA1630.

PDB 3

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)