Ligand profile

CHEMBL1558944

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_2855 — 3'(2'),5'-bisphosphate nucleotidase

Via homolog UniProt P97697 Formula C₁₈H₂₃N₅O₃
pchembl 8.49 ~3.2 nM
Mol. weight 357.41 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL1558944
UniProt (similar protein)
P97697
pchembl
8.490 (~3.2 nM)
Target protein
VK055_2855

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 357.41 Da
LogP (Crippen) 0.47
H-bond donors 2
H-bond acceptors 8
TPSA 94.08 Ų
Rotatable bonds 7
Aromatic rings 3 / 3
Heavy atoms 26
Fraction sp³ C 0.39
Formula C₁₈H₂₃N₅O₃

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 94.1
  • −1 ≤ LogP ≤ 5 0.47
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 357.4
  • LogP ≤ 5 0.47
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 8
Veber's rules Pass
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 94.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cn1c(=O)c2c(nc(NCCCO)n2CCc2ccccc2)n(C)c1=O
InChI 
InChI=1S/C18H23N5O3/c1-21-15-14(16(25)22(2)18(21)26)23(17(20-15)19-10-6-12-24)11-9-13-7-4-3-5-8-13/h3-5,7-8,24H,6,9-12H2,1-2H3,(H,19,20)
InChIKey 
HQJJNDKTTCRBSZ-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
Activity
Inconclusive
Binding sites
PF00459

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_2855.

PDB 4

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)