Ligand profile

ZINC1557164

Virtual-screening candidate from ZINC.

Bound to: KP13_03745 — putative aminotransferase

Via homolog UniProt Q56232 Formula C₂₂H₂₂N₄O₃
Tanimoto 0.71
Mol. weight 390.44 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC1557164
UniProt (similar protein)
Q56232
Tanimoto
0.714
Target protein
KP13_03745

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 390.44 Da
LogP (Crippen) 2.33
H-bond donors 5
H-bond acceptors 3
TPSA 124.00 Ų
Rotatable bonds 7
Aromatic rings 4 / 4
Heavy atoms 29
Fraction sp³ C 0.18
Formula C₂₂H₂₂N₄O₃

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 124.0
  • −1 ≤ LogP ≤ 5 2.33
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 390.4
  • LogP ≤ 5 2.33
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 124.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
N[C@H](Cc1c[nH]c2ccccc12)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)O
InChI 
InChI=1S/C22H22N4O3/c23-17(9-13-11-24-18-7-3-1-5-15(13)18)21(27)26-20(22(28)29)10-14-12-25-19-8-4-2-6-16(14)19/h1-8,11-12,17,20,24-25H,9-10,23H2,(H,26,27)(H,28,29)/t17-,20-/m1/s1
InChIKey 
NQIHMZLGCZNZBN-YLJYHZDGSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Query
TRP
Homolog
Q56232

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_03745.

PDB 7

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

Ligand PDB entry

ZINC 49

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)