Ligand profile

CHEMBL2311924

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01784 — Prolyl-tRNA synthetase

Via homolog UniProt Q8ZDW5 Formula C₁₈H₁₉N₅O₄S
pchembl 8.70 ~2.0 nM
Mol. weight 401.45 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL2311924
UniProt (similar protein)
Q8ZDW5
pchembl
8.700 (~2.0 nM)
Target protein
KP13_01784

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 401.45 Da
LogP (Crippen) 0.39
H-bond donors 4
H-bond acceptors 8
TPSA 161.29 Ų
Rotatable bonds 5
Aromatic rings 3 / 3
Heavy atoms 28
Fraction sp³ C 0.17
Formula C₁₈H₁₉N₅O₄S

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 161.3
  • −1 ≤ LogP ≤ 5 0.39
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 401.4
  • LogP ≤ 5 0.39
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 8
Veber's rules Fail
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 161.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[C@@H](O)[C@H](N)C(=O)NS(=O)(=O)c1ccc2ccc(-c3cc(N)ncn3)cc2c1
InChI 
InChI=1S/C18H19N5O4S/c1-10(24)17(20)18(25)23-28(26,27)14-5-4-11-2-3-12(6-13(11)7-14)15-8-16(19)22-9-21-15/h2-10,17,24H,20H2,1H3,(H,23,25)(H2,19,21,22)/t10-,17+/m1/s1
InChIKey 
SKSGONRDNZKNBF-QGHHPUGFSA-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
Curation
pdb_similarity_tanimoto
Binding sites
PF00587

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_01784.

PDB 10

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

Ligand PDB entry

ChEMBL 20

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)