Ligand profile

26Y

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

Bound to: KP13_00667 — Glycogen phosphorylase

Via homolog PDB 4mic UniProt P00489 Formula C₁₈H₂₅NO₆
Mol. weight 351.40 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
26Y
PDB
4mic
UniProt (similar protein)
P00489
Target protein
KP13_00667

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 351.40 Da
LogP (Crippen) -0.26
H-bond donors 5
H-bond acceptors 6
TPSA 119.25 Ų
Rotatable bonds 5
Aromatic rings 1 / 2
Heavy atoms 25
Fraction sp³ C 0.50
Formula C₁₈H₂₅NO₆

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 119.3
  • −1 ≤ LogP ≤ 5 -0.26
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 351.4
  • LogP ≤ 5 -0.26
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 119.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)c1ccc(cc1)/C=C/C(=O)N[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)O)O
InChI 
InChI=1S/C18H25NO6/c1-10(2)12-6-3-11(4-7-12)5-8-14(21)19-18-17(24)16(23)15(22)13(9-20)25-18/h3-8,10,13,15-18,20,22-24H,9H2,1-2H3,(H,19,21)/b8-5+/t13-,15-,16+,17-,18-/m1/s1
InChIKey 
OPYZIUIJGFRFFX-AWRGUQPNSA-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
PF00343

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_00667.

PDB 115

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)