Ligand profile

L36

Ligand co-crystallized with a similar protein (Protein Data Bank).

Bound to: KP13_00717 — Peptidyl-prolyl cis-trans isomerase A

Via homolog PDB 6gjj UniProt P62937 Formula C₁₅H₂₃N₃O₃
Mol. weight 293.37 Da
Permeability High
PAINS Alert

Identifiers

Database identifiers and provenance.

Ligand ID
L36
PDB
6gjj
UniProt (similar protein)
P62937
Target protein
KP13_00717

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 293.37 Da
LogP (Crippen) 1.75
H-bond donors 2
H-bond acceptors 4
TPSA 84.66 Ų
Rotatable bonds 7
Aromatic rings 1 / 1
Heavy atoms 21
Fraction sp³ C 0.47
Formula C₁₅H₂₃N₃O₃

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 84.7
  • −1 ≤ LogP ≤ 5 1.75
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 293.4
  • LogP ≤ 5 1.75
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 84.7
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 
CCCN(Cc1ccc(cc1)N)C(=O)NCC(=O)OCC
InChI 
InChI=1S/C15H23N3O3/c1-3-9-18(11-12-5-7-13(16)8-6-12)15(20)17-10-14(19)21-4-2/h5-8H,3-4,9-11,16H2,1-2H3,(H,17,20)
InChIKey 
KHLQRJYGXHCNMH-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
PDB
Binding sites
PF00160

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_00717.

PDB 39

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

Ligand PDB entry

ChEMBL 100

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)