Glutathione (GSH/GSSG/Total) Fluorometric Assay Kit

AgK-349

Glutathione (GSH/GSSG/Total) Fluorometric Assay Kit

Glutathione Detection Kit provides a unique, convenient tool for detecting GSH, GSSG, and total glutathione individually. In the assay, OPA, reacts with GSH (not GSSG), generating fluorescence, so GSH can be specifically quantified. Adding a reducing agent converts GSSG to GSH, so (GSH + GSSG) can be determined. To measure GSSG specifically, a GSH Quencher is added to remove GSH, preventing reaction with OPA (while GSSG is unaffected). Reducing agent is then added to destroy excess quencher and to convert GSSG to GSH. Thus, GSSG can be specifically quantified. The kit provides a unique procedure and buffer formula to eliminate protein thiol interference and to stabilize GSH and GSSG in solution.

Glutathione is the major intracellular low-molecular-weight thiol that plays a critical role in cellular defense against oxidative stress in tissues and cells. Commercially available glutathione detection kits, such as the DTNB-enzyme cycling glutathione assay kit or the Monochlorobimane based assay kit hardly distinguish between reduced glutathione (GSH; FW: 307) and oxidized glutathione (GSSG; FW: 612).

The kit provides unique formula and buffers and procedures for detecting the GSH, GSSG, and total glutathione individually

Store at -20°C.

100 assays

• Glutathione Assay Buffer
• PCA (Perchloric Acid, 6N)
• KOH (<6N)
• OPA Probe (o-phthalaldehyde )
• Reducing Agent Mix
• GSH Quencher
• GSH Standard (FW: 307)

Fluorescence (Ex/Em 340/420 nm)