Ligand profile

EA9

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

Bound to: VK055_1259 — glycosyl hydrolases 18 family protein

Via homolog PDB 6le7 UniProt Q11174 Formula C₂₇H₂₆N₄O₄
Mol. weight 470.53 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
EA9
PDB
6le7
UniProt (similar protein)
Q11174
Target protein
VK055_1259

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 470.53 Da
LogP (Crippen) 4.72
H-bond donors 2
H-bond acceptors 6
TPSA 100.57 Ų
Rotatable bonds 8
Aromatic rings 4 / 5
Heavy atoms 35
Fraction sp³ C 0.22
Formula C₂₇H₂₆N₄O₄

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 100.6
  • −1 ≤ LogP ≤ 5 4.72
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 470.5
  • LogP ≤ 5 4.72
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 8
  • TPSA ≤ 140 Ų 100.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCCOc1ccc(cc1OC)[C@@H]2c3c(n[nH]c3C(=O)N2Cc4cccnc4)c5ccccc5O
InChI 
InChI=1S/C27H26N4O4/c1-3-13-35-21-11-10-18(14-22(21)34-2)26-23-24(19-8-4-5-9-20(19)32)29-30-25(23)27(33)31(26)16-17-7-6-12-28-15-17/h4-12,14-15,26,32H,3,13,16H2,1-2H3,(H,29,30)/t26-/m1/s1
InChIKey 
VDJNZGXOMKRJML-AREMUKBSSA-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
PF00704

External resources

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

Other ligands for this protein

Quick navigation to other ligands bound to VK055_1259.

PDB 4

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)