Ligand profile

QSI

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

Bound to: KP13_03562 — Glutamyl-tRNA synthetase

Via homolog PDB 1euq UniProt P00962 Formula C₁₅H₂₂N₈O₈S
Mol. weight 474.46 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
QSI
PDB
1euq
UniProt (similar protein)
P00962
Target protein
KP13_03562

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 474.46 Da
LogP (Crippen) -4.00
H-bond donors 6
H-bond acceptors 14
TPSA 260.89 Ų
Rotatable bonds 9
Aromatic rings 2 / 3
Heavy atoms 32
Fraction sp³ C 0.53
Formula C₁₅H₂₂N₈O₈S

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 260.9
  • −1 ≤ LogP ≤ 5 -4.00
Lipinski's Rule of Five Fail 2 violations
  • MW ≤ 500 Da 474.5
  • LogP ≤ 5 -4.00
  • H-bond donors ≤ 5 6
  • H-bond acceptors ≤ 10 14
Veber's rules Fail
  • Rotatable bonds ≤ 10 9
  • TPSA ≤ 140 Ų 260.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)COS(=O)(=O)NC(=O)[C@H](CCC(=O)N)N)O)O)N
InChI 
InChI=1S/C15H22N8O8S/c16-6(1-2-8(17)24)14(27)22-32(28,29)30-3-7-10(25)11(26)15(31-7)23-5-21-9-12(18)19-4-20-13(9)23/h4-7,10-11,15,25-26H,1-3,16H2,(H2,17,24)(H,22,27)(H2,18,19,20)/t6-,7+,10+,11+,15+/m0/s1
InChIKey 
KXWKSWRGZLZHEF-WERHYGNASA-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
PF00749

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_03562.

PDB 9

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

Ligand PDB entry

ChEMBL 3

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)