Ligand profile

BP9

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

Bound to: KP13_05261 — Glutaminase

Via homolog PDB 3vp4 UniProt O94925 Formula C₈H₁₂N₆S₂
Mol. weight 256.36 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
BP9
PDB
3vp4
UniProt (similar protein)
O94925
Target protein
KP13_05261

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 256.36 Da
LogP (Crippen) 1.12
H-bond donors 2
H-bond acceptors 8
TPSA 103.60 Ų
Rotatable bonds 5
Aromatic rings 2 / 2
Heavy atoms 16
Fraction sp³ C 0.50
Formula C₈H₁₂N₆S₂

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 103.6
  • −1 ≤ LogP ≤ 5 1.12
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 256.4
  • LogP ≤ 5 1.12
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 8
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 103.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C(CCc1nnc(s1)N)Cc2nnc(s2)N
InChI 
InChI=1S/C8H12N6S2/c9-7-13-11-5(15-7)3-1-2-4-6-12-14-8(10)16-6/h1-4H2,(H2,9,13)(H2,10,14)
InChIKey 
FXLSMCSUYSZCFA-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
PF04960

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_05261.

PDB 13

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

Ligand PDB entry

ChEMBL 100

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)