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Glutathione-S-transferase Polyclonal Rabbit Antibody ( GST antibody )
TypePolyclonal Rabbit Antibody.DescriptionPolyclonal antibody to recombinant glutathione-S-transferase (GST) was raised by immunizing rabbits with affinity purified GST. The protein was expressed in bacteria and purified by glutathione-affinity
Data sheet
| Storage | For continuous use, store at 2-8C. For extended storage freeze, in desirable aliquots. Repeated freezing and thawing is not recommended. |
| Clone | 6C7. |
| Formulation | 1PBS & 50% glycerol. |
| Applications | Western Blot, Immunoprecipitation. |
| Description | Polyclonal antibody to recombinant glutathione-S-transferase (GST) was raised by immunizing rabbits with affinity purified GST. The protein was expressed in bacteria and purified by glutathione-affinity chromatography. The product is provided as crude serum with 0.05 % sodium azide as a preservative. |
| Protein Background | GST family of enzymescomprises a long list of cytosolic, mitochondrial, and microsomalproteinsthat are 45-55 kDa (dimer form) size and are capable of multiple reactions with a multitude of substrates, both endogenousand xenobiotic. GST catalyses the conjugation of reduced glutathione meaning the sulfhydryl group, to electrophilic centers on a wide variety of substrates. This activity is useful in the detoxification of endogenous compounds such as peroxidised lipids, as well as the metabolism of xenobiotics. GST binds toxins and function as transport protein. Glutathione S-transferase is used to create the so-called 'GST gene fusion system'. The GST is used to purify and detect proteins of interest. In a GST gene fusion system, the GST sequence is incorporated into an expression vector alongside the gene sequence encoding the protein of interest. Induction of protein expression from the vector's multiple cloning sites results in expression of a fusion protein - the protein of interest fused to the GST protein. This GST-fusion protein can then be purified from cells via its high affinity for glutathione. Fusion proteins offer an important biological assay for direct protein-to-protein interactions. The GST tag has the size of 220 amino acids, which, compared to other tags like the myc- or the FLAG-tag, is quite big. It is fused to the N-terminusof a protein. However, many commercially-available sources of GST-tagged plasmids include a thrombindomain for cleavage of the GST tag during protein purification. A GST-tag is often used to separate and purify proteins that contain the GST-fusion. GST-fusion proteins can be produced in Escherichia coli, as recombinant proteins. |
| Reagent Appearance | Sterile filtered colorless solution. |
| Type | Mouse Antibody Monoclonal. |
| Immunogen | glutathione-S-transferase (GST) of Schistosoma japonicum. |
| Ig Subclass | Mouse IgG1. |
| Purification Method | Protein A column. |
| Protein formulation | 1mg/ml containing PBS, pH-7.4, & 0.1% Sodium Azide. |
| Storage Procedures | For periods up to 1 month store at 4°C, for longer periods of time, store at -20°C. Prevent freeze thaw cycles. |
| Stability / Shelf Life | 12 months at -20°C. 1 month at 4°C. |