Ligand profile

FKS

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

Bound to: KP13_03495 — Histone deacetylase superfamily protein

Via homolog PDB 5efh UniProt F8W4B7 Formula C₁₀H₂₁F₃N₂O₂
Mol. weight 258.28 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
FKS
PDB
5efh
UniProt (similar protein)
F8W4B7
Target protein
KP13_03495

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 258.28 Da
LogP (Crippen) 0.73
H-bond donors 4
H-bond acceptors 4
TPSA 78.51 Ų
Rotatable bonds 9
Aromatic rings 0 / 0
Heavy atoms 17
Fraction sp³ C 1.00
Formula C₁₀H₂₁F₃N₂O₂

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 78.5
  • −1 ≤ LogP ≤ 5 0.73
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 258.3
  • LogP ≤ 5 0.73
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 9
  • TPSA ≤ 140 Ų 78.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C(CCC(C(F)(F)F)(O)O)CCNCCCN
InChI 
InChI=1S/C10H21F3N2O2/c11-10(12,13)9(16,17)5-2-1-3-7-15-8-4-6-14/h15-17H,1-8,14H2
InChIKey 
IVRAKANOVJJYCX-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
PF00850

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_03495.

PDB 45

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

Ligand PDB entry

ChEMBL 55

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)