Ligand profile

SZK

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

Bound to: KP13_31828 — UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--2, 6-diaminopimelate ligase

Via homolog PDB 7b6l UniProt P22188 Formula C₁₄H₁₅N₃O
Mol. weight 241.29 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
SZK
PDB
7b6l
UniProt (similar protein)
P22188
Target protein
KP13_31828

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 241.29 Da
LogP (Crippen) 3.26
H-bond donors 1
H-bond acceptors 4
TPSA 42.99 Ų
Rotatable bonds 4
Aromatic rings 3 / 3
Heavy atoms 18
Fraction sp³ C 0.21
Formula C₁₄H₁₅N₃O

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy High

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 43.0
  • −1 ≤ LogP ≤ 5 3.26
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 241.3
  • LogP ≤ 5 3.26
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 43.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCn1c2ccccc2nc1NCc3ccco3
InChI 
InChI=1S/C14H15N3O/c1-2-17-13-8-4-3-7-12(13)16-14(17)15-10-11-6-5-9-18-11/h3-9H,2,10H2,1H3,(H,15,16)
InChIKey 
XVKUMXLSEKBYCF-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Source
PDB
Binding sites
PF08245

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_31828.

PDB 17

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

Ligand PDB entry

ChEMBL 9

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)