Ligand profile

LW1

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

Bound to: KP13_01987 — Transaldolase 1

Via homolog PDB 5zol UniProt P78055 Formula C₅H₄OS
Mol. weight 112.15 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
LW1
PDB
5zol
UniProt (similar protein)
P78055
Target protein
KP13_01987

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 112.15 Da
LogP (Crippen) 1.56
H-bond donors 0
H-bond acceptors 2
TPSA 17.07 Ų
Rotatable bonds 1
Aromatic rings 1 / 1
Heavy atoms 7
Fraction sp³ C 0.00
Formula C₅H₄OS

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 17.1
  • −1 ≤ LogP ≤ 5 1.56
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 112.2
  • LogP ≤ 5 1.56
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 17.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(sc1)C=O
InChI 
InChI=1S/C5H4OS/c6-4-5-2-1-3-7-5/h1-4H
InChIKey 
CNUDBTRUORMMPA-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
PF00923

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_01987.

PDB 10

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)