Application

Bis-2-(5-phenylacetamido-1,3,4-thiadiazol-2-yl)ethyl sulfide (BPTES) has been used as a glutaminase inhibitor.

Biochem/physiol Actions

BPTES is a selective inhibitor of Glutaminase GLS1 (KGA), which is found in the kidney and brain, and is positively regulated by myc and strongly expressed in many tumors and tumor cell lines. Glutaminase converts glutamine to glutamate, which is an important excitatory neurotransmitter in brain and can be further oxidized to α-ketoglutarate to feed the tricarboxylic acid (TCA) cycle and to glutathione, which is important for controlling the level of reactive oxygen species (ROS), particularly important for cancer cell growth. BPTES was found to slow growth of glioma cells. BPTES is a noncompetitive inhibitor with a Ki of 3 µM.

Vaccinia virus (VACV) requires glutamine metabolism for its optimal replication. Inhibition of glutaminolysis by bis-2-(5-phenylacetamido-1,3,4-thiadiazol-2-yl)ethyl sulfide (BPTES) can be a potential method to treat poxvirus infections.

Packaging

5, 25 mg in glass bottle