Ligand profile

SBX

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

Bound to: KP13_01972 — FKBP-type 16 kDa peptidyl-prolyl cis-trans isomerase

Via homolog PDB 1fkh UniProt P62942 Formula C₂₈H₄₁NO₄
Mol. weight 455.64 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
SBX
PDB
1fkh
UniProt (similar protein)
P62942
Target protein
KP13_01972

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 455.64 Da
LogP (Crippen) 5.50
H-bond donors 0
H-bond acceptors 4
TPSA 63.68 Ų
Rotatable bonds 9
Aromatic rings 1 / 3
Heavy atoms 33
Fraction sp³ C 0.68
Formula C₂₈H₄₁NO₄

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 63.7
  • −1 ≤ LogP ≤ 5 5.50
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 455.6
  • LogP ≤ 5 5.50
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 9
  • TPSA ≤ 140 Ų 63.7
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCC(C)(C)C(=O)C(=O)N1CCCC[C@H]1C(=O)OC(CCc2ccccc2)C3CCCCC3
InChI 
InChI=1S/C28H41NO4/c1-4-28(2,3)25(30)26(31)29-20-12-11-17-23(29)27(32)33-24(22-15-9-6-10-16-22)19-18-21-13-7-5-8-14-21/h5,7-8,13-14,22-24H,4,6,9-12,15-20H2,1-3H3/t23-,24?/m0/s1
InChIKey 
PANCOFAQARSQHI-UXMRNZNESA-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
PF00254

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_01972.

PDB 24

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)