Ligand profile

CHEMBL4543513

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_02423 — tRNA (guanine-N(1)-)-methyltransferase

Via homolog UniProt Q9HXQ1 Formula C₂₀H₂₆ClN₅O₂S
pchembl 6.96 ~109.6 nM
Mol. weight 435.98 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL4543513
UniProt (similar protein)
Q9HXQ1
pchembl
6.960 (~109.6 nM)
Target protein
KP13_02423

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 435.98 Da
LogP (Crippen) 2.56
H-bond donors 4
H-bond acceptors 6
TPSA 112.90 Ų
Rotatable bonds 10
Aromatic rings 3 / 3
Heavy atoms 29
Fraction sp³ C 0.35
Formula C₂₀H₂₆ClN₅O₂S

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 112.9
  • −1 ≤ LogP ≤ 5 2.56
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 436.0
  • LogP ≤ 5 2.56
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 10
  • TPSA ≤ 140 Ų 112.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cl.NCCCCCNCc1ccc(CNC(=O)c2csc3nc[nH]c(=O)c23)cc1
InChI 
InChI=1S/C20H25N5O2S.ClH/c21-8-2-1-3-9-22-10-14-4-6-15(7-5-14)11-23-18(26)16-12-28-20-17(16)19(27)24-13-25-20;/h4-7,12-13,22H,1-3,8-11,21H2,(H,23,26)(H,24,25,27);1H
InChIKey 
QQSMMVWZEXQONK-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
ChEMBL
Binding sites
PF01746

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_02423.

PDB 89

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

Ligand PDB entry

ChEMBL 37

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)