Ligand profile

HQ5

Bioactivity hit from ChEMBL on a similar protein.

Bound to: HT085_RS00355 — isoleucine--tRNA ligase

Via homolog UniProt P00956 Formula C₁₅H₂₅N₅O₈S
Mol. weight 435.46 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
HQ5
UniProt (similar protein)
P00956
Target protein
HT085_RS00355

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 435.46 Da
LogP (Crippen) -2.80
H-bond donors 5
H-bond acceptors 12
TPSA 209.09 Ų
Rotatable bonds 8
Aromatic rings 1 / 2
Heavy atoms 29
Fraction sp³ C 0.67
Formula C₁₅H₂₅N₅O₈S

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 209.1
  • −1 ≤ LogP ≤ 5 -2.80
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 435.5
  • LogP ≤ 5 -2.80
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 12
Veber's rules Fail
  • Rotatable bonds ≤ 10 8
  • TPSA ≤ 140 Ų 209.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)C[C@@H](C(=O)NS(=O)(=O)OC[C@@H]1[C@H]([C@H]([C@@H](O1)N2C=CC(=NC2=O)N)O)O)N
InChI 
InChI=1S/C15H25N5O8S/c1-7(2)5-8(16)13(23)19-29(25,26)27-6-9-11(21)12(22)14(28-9)20-4-3-10(17)18-15(20)24/h3-4,7-9,11-12,14,21-22H,5-6,16H2,1-2H3,(H,19,23)(H2,17,18,24)/t8-,9+,11+,12+,14+/m0/s1
InChIKey 
GAMJBGGTDXDZPE-XKYXEJCGSA-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
Activity
Active
Curation
pdb_similarity_tanimoto
Binding sites
PF00133

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to HT085_RS00355.

PDB 1

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

Ligand PDB entry

ChEMBL 33

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)