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Recombinant Schistosoma japonicum GST protein

Cat.No.: GST-573S
Product Overview: Recombinant Schistosoma japonicum GST(Met 1-Lys 218) fused with additional 11 amino acids at the C-terminus was expressed in Insect cells.
Description: Genetic engineers have used glutathione S-transferase to create the GST gene fusion system. This system 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 promoter 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. GST is commonly used to create fusion proteins. The tag has the size of 220 amino acids (roughly 26 KDa), which, compared to other tags like the myc- or the FLAG-tag, is quite big. However, many commercially-available sources of GST-tagged plasmids include a thrombin domain for cleavage of the GST tag during protein purification.
Source: Insect cells
Species: Schistosoma japonicum
Predicted N Terminal: Met 1
Form: Lyophilized from sterile 50mM Tris, 100mM NaCl, 2mM GSH, pH 8.01. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.2. Please contact us for any concerns or special requirements.
Molecular Mass: The recombinant Glutathione S-transferase (GST) consists of 229 amino acids and predicts a molecular mass of 26.9 kDa. The apparent molecular mass of GST is approximately 28 kDa in SDS-PAGE under reducing conditions.
Protein length: Met 1-Lys 218
Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method
Purity: > 95 % as determined by SDS-PAGE
Stability: Samples are stable for up to twelve months from date of receipt at -70 centigrade
Storage: Store it under sterile conditions at -20 centigrade to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

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Optional requirements on this protein    +Expand
C-fusion    N-fusion   Non-tagged
His    GST   Fc   Others
<1.0 eu/μg    <0.1 eu/μg   <0.01 eu/μg   Not required
Monomer Isolation    Dimer Isolation    Not required
>80% by SDS-PAGE    >90% by SDS-PAGE   >95% by SDS-PAGE   Others

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