Ligand profile

QCM

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

Bound to: KP13_03495 — Histone deacetylase superfamily protein

Via homolog PDB 6uoc UniProt F8W4B7 Formula C₂₄H₂₇N₃O₄
Mol. weight 421.50 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
QCM
PDB
6uoc
UniProt (similar protein)
F8W4B7
Target protein
KP13_03495

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 421.50 Da
LogP (Crippen) 4.55
H-bond donors 3
H-bond acceptors 5
TPSA 90.90 Ų
Rotatable bonds 8
Aromatic rings 3 / 3
Heavy atoms 31
Fraction sp³ C 0.25
Formula C₂₄H₂₇N₃O₄

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 90.9
  • −1 ≤ LogP ≤ 5 4.55
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 421.5
  • LogP ≤ 5 4.55
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 8
  • TPSA ≤ 140 Ų 90.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCN(CC)Cc1ccc2cc(ccc2c1)COC(=O)Nc3ccc(cc3)C(=O)NO
InChI 
InChI=1S/C24H27N3O4/c1-3-27(4-2)15-17-5-7-21-14-18(6-8-20(21)13-17)16-31-24(29)25-22-11-9-19(10-12-22)23(28)26-30/h5-14,30H,3-4,15-16H2,1-2H3,(H,25,29)(H,26,28)
InChIKey 
YALNUENQHAQXEA-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)