Ligand profile

F9Y

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

Bound to: KP13_31766 — cell division protein FtsY

Via homolog PDB 6cs8 UniProt P10121 Formula C₉H₆N₂
Mol. weight 142.16 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
F9Y
PDB
6cs8
UniProt (similar protein)
P10121
Target protein
KP13_31766

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 142.16 Da
LogP (Crippen) 2.04
H-bond donors 1
H-bond acceptors 1
TPSA 39.58 Ų
Rotatable bonds 0
Aromatic rings 2 / 2
Heavy atoms 11
Fraction sp³ C 0.00
Formula C₉H₆N₂

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 39.6
  • −1 ≤ LogP ≤ 5 2.04
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 142.2
  • LogP ≤ 5 2.04
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 1
Veber's rules Pass
  • Rotatable bonds ≤ 10 0
  • TPSA ≤ 140 Ų 39.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(cc2c1cc[nH]2)C#N
InChI 
InChI=1S/C9H6N2/c10-6-7-1-2-8-3-4-11-9(8)5-7/h1-5,11H
InChIKey 
SZSZDBFJCQKTRG-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
PF00448

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_31766.

PDB 8

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)