Ligand profile

HM4

Bioactivity hit from ChEMBL on a similar protein.

Bound to: VK055_2384 — methionine aminopeptidase, type I

Via homolog UniProt P0AE18 Formula C₁₄H₁₆N₄O₃S
pchembl 6.75 ~177.8 nM
Mol. weight 320.37 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
HM4
UniProt (similar protein)
P0AE18
pchembl
6.750 (~177.8 nM)
Target protein
VK055_2384

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 320.37 Da
LogP (Crippen) 3.14
H-bond donors 2
H-bond acceptors 6
TPSA 93.21 Ų
Rotatable bonds 3
Aromatic rings 2 / 2
Heavy atoms 22
Fraction sp³ C 0.29
Formula C₁₄H₁₆N₄O₃S

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 93.2
  • −1 ≤ LogP ≤ 5 3.14
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 320.4
  • LogP ≤ 5 3.14
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 93.2
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)(C)OC(=O)Nc1cccnc1C(=O)Nc2nccs2
InChI 
InChI=1S/C14H16N4O3S/c1-14(2,3)21-13(20)17-9-5-4-6-15-10(9)11(19)18-12-16-7-8-22-12/h4-8H,1-3H3,(H,17,20)(H,16,18,19)
InChIKey 
QBMYJIFXSXKPFS-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Source
ChEMBL
Binding sites
PF00557

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_2384.

PDB 46

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)