Ligand profile

CHEMBL5966345

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_0552 — fused predicted DNA-binding transcriptional regulator and predicted amino transferase

Via homolog UniProt Q8N5Z0 Formula C₂₀H₂₁N₅O₃S
pchembl 7.82 ~15.1 nM
Mol. weight 411.49 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL5966345
UniProt (similar protein)
Q8N5Z0
pchembl
7.820 (~15.1 nM)
Target protein
VK055_0552

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 411.49 Da
LogP (Crippen) 1.88
H-bond donors 1
H-bond acceptors 8
TPSA 97.19 Ų
Rotatable bonds 5
Aromatic rings 3 / 4
Heavy atoms 29
Fraction sp³ C 0.35
Formula C₂₀H₂₁N₅O₃S

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 97.2
  • −1 ≤ LogP ≤ 5 1.88
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 411.5
  • LogP ≤ 5 1.88
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 8
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 97.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(=O)c1nc2sc(N3CCC[C@@H]3C(=O)NCc3ccccc3)nc2c(=O)n1C
InChI 
InChI=1S/C20H21N5O3S/c1-12(26)16-23-18-15(19(28)24(16)2)22-20(29-18)25-10-6-9-14(25)17(27)21-11-13-7-4-3-5-8-13/h3-5,7-8,14H,6,9-11H2,1-2H3,(H,21,27)/t14-/m1/s1
InChIKey 
VOLDJDSZWFBGHC-CQSZACIVSA-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
Activity
522656
Binding sites
PF00155

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_0552.

PDB 20

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)