Ligand profile

CHEMBL3675055

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_05261 — Glutaminase

Via homolog UniProt O94925 Formula C₃₃H₃₉N₇O₃S
pchembl 8.52 ~3.0 nM
Mol. weight 613.79 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL3675055
UniProt (similar protein)
O94925
pchembl
8.520 (~3.0 nM)
Target protein
KP13_05261

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 613.79 Da
LogP (Crippen) 4.96
H-bond donors 3
H-bond acceptors 8
TPSA 138.86 Ų
Rotatable bonds 14
Aromatic rings 4 / 4
Heavy atoms 44
Fraction sp³ C 0.36
Formula C₃₃H₃₉N₇O₃S

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 138.9
  • −1 ≤ LogP ≤ 5 4.96
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 613.8
  • LogP ≤ 5 4.96
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 8
Veber's rules Fail
  • Rotatable bonds ≤ 10 14
  • TPSA ≤ 140 Ų 138.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)(C)CNC(=O)Cc1cccc(CC(=O)Nc2nnc(CCCCc3ccc(NC(=O)Cc4ccccc4)nn3)s2)c1
InChI 
InChI=1S/C33H39N7O3S/c1-33(2,3)22-34-28(41)20-24-12-9-13-25(18-24)21-30(43)36-32-40-39-31(44-32)15-8-7-14-26-16-17-27(38-37-26)35-29(42)19-23-10-5-4-6-11-23/h4-6,9-13,16-18H,7-8,14-15,19-22H2,1-3H3,(H,34,41)(H,35,38,42)(H,36,40,43)
InChIKey 
OLXXQTIARLOHGR-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
ChEMBL
Activity
228877
Curation
pdb_similarity_tanimoto
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 14

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

Ligand PDB entry

ChEMBL 99

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)