Ligand profile

ASC

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

Bound to: KP13_05534 — Ascorbate-specific permease IIC component ulaA

Via homolog PDB 4rp9 UniProt P39301 Formula C₆H₈O₆
Mol. weight 176.12 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ASC
PDB
4rp9
UniProt (similar protein)
P39301
Target protein
KP13_05534

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 176.12 Da
LogP (Crippen) -1.41
H-bond donors 4
H-bond acceptors 6
TPSA 107.22 Ų
Rotatable bonds 2
Aromatic rings 0 / 1
Heavy atoms 12
Fraction sp³ C 0.50
Formula C₆H₈O₆

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy Check

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 107.2
  • −1 ≤ LogP ≤ 5 -1.41
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 176.1
  • LogP ≤ 5 -1.41
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 107.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O
InChI 
InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1
InChIKey 
CIWBSHSKHKDKBQ-JLAZNSOCSA-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
PF03611

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_05534.

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)