Ligand profile

644

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

Bound to: KP13_05356 — Bifunctional anthranilate synthase/anthranilate phosphoribosyltransferase

Via homolog PDB 4m0r UniProt P9WFX5 Formula C₂₁H₁₆N₂O₆
Mol. weight 392.37 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
644
PDB
4m0r
UniProt (similar protein)
P9WFX5
Target protein
KP13_05356

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 392.37 Da
LogP (Crippen) 4.27
H-bond donors 5
H-bond acceptors 5
TPSA 135.96 Ų
Rotatable bonds 7
Aromatic rings 3 / 3
Heavy atoms 29
Fraction sp³ C 0.00
Formula C₂₁H₁₆N₂O₆

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 136.0
  • −1 ≤ LogP ≤ 5 4.27
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 392.4
  • LogP ≤ 5 4.27
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 136.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1ccc(c(c1)C(=O)O)Nc2cccc(c2C(=O)O)Nc3ccccc3C(=O)O
InChI 
InChI=1S/C21H16N2O6/c24-19(25)12-6-1-3-8-14(12)22-16-10-5-11-17(18(16)21(28)29)23-15-9-4-2-7-13(15)20(26)27/h1-11,22-23H,(H,24,25)(H,26,27)(H,28,29)
InChIKey 
KUKYCRSGSBMBMX-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
PDB
Binding sites
PF00591

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_05356.

PDB 16

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

Ligand PDB entry

ZINC 50

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

Compound Similarity (Tanimoto)