Ligand profile

CHEMBL65338

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01605 — Protease 2

Via homolog UniProt P48147 Formula C₂₀H₂₄N₂O₃S
pchembl 9.00 ~1.0 nM
Mol. weight 372.49 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL65338
UniProt (similar protein)
P48147
pchembl
9.000 (~1.0 nM)
Target protein
KP13_01605

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 372.49 Da
LogP (Crippen) 1.88
H-bond donors 0
H-bond acceptors 4
TPSA 57.69 Ų
Rotatable bonds 4
Aromatic rings 1 / 4
Heavy atoms 26
Fraction sp³ C 0.55
Formula C₂₀H₂₄N₂O₃S

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 57.7
  • −1 ≤ LogP ≤ 5 1.88
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 372.5
  • LogP ≤ 5 1.88
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 57.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C[C@@H]1CCCN1C(=O)[C@@H]1CSCN1C(=O)CC1Cc2ccccc2C1
InChI 
InChI=1S/C20H24N2O3S/c23-11-17-6-3-7-21(17)20(25)18-12-26-13-22(18)19(24)10-14-8-15-4-1-2-5-16(15)9-14/h1-2,4-5,11,14,17-18H,3,6-10,12-13H2/t17-,18-/m0/s1
InChIKey 
PXBNLQKLEFHKCH-ROUUACIJSA-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)