Ligand profile

ZINC78111

Virtual-screening candidate from ZINC.

Bound to: KP13_04219 — ATP-binding/permease protein cydC

Via homolog UniProt A0A0B9X4I2 Formula C₁₆H₁₅NO₃S
Tanimoto 0.80
Mol. weight 301.37 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC78111
UniProt (similar protein)
A0A0B9X4I2
Tanimoto
0.800
Target protein
KP13_04219

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 301.37 Da
LogP (Crippen) 3.58
H-bond donors 2
H-bond acceptors 3
TPSA 66.40 Ų
Rotatable bonds 3
Aromatic rings 2 / 3
Heavy atoms 21
Fraction sp³ C 0.25
Formula C₁₆H₁₅NO₃S

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 66.4
  • −1 ≤ LogP ≤ 5 3.58
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 301.4
  • LogP ≤ 5 3.58
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 66.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C(Nc1sc2c(c1C(=O)O)CCCC2)c1ccccc1
InChI 
InChI=1S/C16H15NO3S/c18-14(10-6-2-1-3-7-10)17-15-13(16(19)20)11-8-4-5-9-12(11)21-15/h1-3,6-7H,4-5,8-9H2,(H,17,18)(H,19,20)
InChIKey 
CMYBPWJIHAYXGS-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Query
Z5G
Homolog
A0A0B9X4I2

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_04219.

PDB 4

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)