Ligand profile

QGB

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_1259 — glycosyl hydrolases 18 family protein

Via homolog UniProt Q9BZP6 Formula C₁₉H₂₇ClN₆O
pchembl 8.32 ~4.8 nM
Mol. weight 390.92 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
QGB
UniProt (similar protein)
Q9BZP6
pchembl
8.320 (~4.8 nM)
Target protein
VK055_1259

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 390.92 Da
LogP (Crippen) 2.34
H-bond donors 2
H-bond acceptors 6
TPSA 83.30 Ų
Rotatable bonds 4
Aromatic rings 2 / 4
Heavy atoms 27
Fraction sp³ C 0.58
Formula C₁₉H₂₇ClN₆O

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 83.3
  • −1 ≤ LogP ≤ 5 2.34
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 390.9
  • LogP ≤ 5 2.34
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 83.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[C@H]1CN([C@H](CO1)Cc2ccc(cc2)Cl)C3CCN(CC3)c4[nH]nc(n4)N
InChI 
InChI=1S/C19H27ClN6O/c1-13-11-26(17(12-27-13)10-14-2-4-15(20)5-3-14)16-6-8-25(9-7-16)19-22-18(21)23-24-19/h2-5,13,16-17H,6-12H2,1H3,(H3,21,22,23,24)/t13-,17-/m0/s1
InChIKey 
STWVLEKJQQRGMO-GUYCJALGSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Source
ChEMBL
Curation
pdb_similarity_tanimoto
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 5

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ChEMBL 99

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)