Ligand profile

CHEMBL538257

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_5044 — hisD

Via homolog UniProt P24226 Formula C₁₃H₁₈Cl₂N₄O
pchembl 6.30 ~501.2 nM
Mol. weight 317.22 Da
Permeability Check
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL538257
UniProt (similar protein)
P24226
pchembl
6.300 (~501.2 nM)
Target protein
VK055_5044

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 317.22 Da
LogP (Crippen) 1.52
H-bond donors 3
H-bond acceptors 4
TPSA 97.79 Ų
Rotatable bonds 5
Aromatic rings 2 / 2
Heavy atoms 20
Fraction sp³ C 0.23
Formula C₁₃H₁₈Cl₂N₄O

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 97.8
  • −1 ≤ LogP ≤ 5 1.52
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 317.2
  • LogP ≤ 5 1.52
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 97.8
PAINS Alert

Matches PAINS filter: anil_no_alk(40). May be a frequent false positive in HTS — review carefully.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cl.Cl.Nc1ccc(CC(=O)[C@@H](N)Cc2c[nH]cn2)cc1
InChI 
InChI=1S/C13H16N4O.2ClH/c14-10-3-1-9(2-4-10)5-13(18)12(15)6-11-7-16-8-17-11;;/h1-4,7-8,12H,5-6,14-15H2,(H,16,17);2*1H/t12-;;/m0../s1
InChIKey 
SGHKBETZSCEMLT-LTCKWSDVSA-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
PF00815

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_5044.

PDB 3

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

Ligand PDB entry

ChEMBL 27

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)