Ligand profile

CHEMBL4210318

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_0557 — 1-pyrroline dehydrogenase

Via homolog UniProt O94788 Formula C₁₉H₁₄ClFN₄OS
pchembl 6.25 ~562.3 nM
Mol. weight 400.87 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4210318
UniProt (similar protein)
O94788
pchembl
6.250 (~562.3 nM)
Target protein
VK055_0557

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 400.87 Da
LogP (Crippen) 4.20
H-bond donors 0
H-bond acceptors 6
TPSA 52.71 Ų
Rotatable bonds 4
Aromatic rings 4 / 4
Heavy atoms 27
Fraction sp³ C 0.11
Formula C₁₉H₁₄ClFN₄OS

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 52.7
  • −1 ≤ LogP ≤ 5 4.20
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 400.9
  • LogP ≤ 5 4.20
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 52.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cn1ncc2c(=O)n(-c3cccc(Cl)c3)c(SCc3cccc(F)c3)nc21
InChI 
InChI=1S/C19H14ClFN4OS/c1-24-17-16(10-22-24)18(26)25(15-7-3-5-13(20)9-15)19(23-17)27-11-12-4-2-6-14(21)8-12/h2-10H,11H2,1H3
InChIKey 
VBFGXTXPUNYLRH-UHFFFAOYSA-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
Binding sites
PF00171

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_0557.

PDB 13

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

Ligand PDB entry

ChEMBL 53

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)