Ligand profile

CHEMBL63045

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01605 — Protease 2

Via homolog UniProt P48147 Formula C₂₁H₂₈N₂O₂
pchembl 8.27 ~5.4 nM
Mol. weight 340.47 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL63045
UniProt (similar protein)
P48147
pchembl
8.270 (~5.4 nM)
Target protein
KP13_01605

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 340.47 Da
LogP (Crippen) 2.80
H-bond donors 0
H-bond acceptors 2
TPSA 40.62 Ų
Rotatable bonds 3
Aromatic rings 1 / 4
Heavy atoms 25
Fraction sp³ C 0.62
Formula C₂₁H₂₈N₂O₂

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 40.6
  • −1 ≤ LogP ≤ 5 2.80
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 340.5
  • LogP ≤ 5 2.80
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 40.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C([C@H]1CCCN1C(=O)C[C@H]1CCc2ccccc2C1)N1CCCC1
InChI 
InChI=1S/C21H28N2O2/c24-20(15-16-9-10-17-6-1-2-7-18(17)14-16)23-13-5-8-19(23)21(25)22-11-3-4-12-22/h1-2,6-7,16,19H,3-5,8-15H2/t16-,19+/m0/s1
InChIKey 
IEPYCHWOKPVQIY-QFBILLFUSA-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
Curation
pdb_similarity_tanimoto
Binding sites
PF00326' 'PF02897

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to KP13_01605.

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)