Recombinant Streptococcus Protein G (SPG) INQUIRY

Cat.No: RP-102SPG
Cat# RP-102SPG
Product Name Recombinant Streptococcus Protein G (SPG)
Introduction Protein G is a bacterial cell wall protein expressing at the cell surface of some group C and group G Streptococcal strains that binds the Fc region of immunoglobulin G (IgG) with high affinity. Protein G binds to all IgG subclasses from human, mouse and rat species. It also binds to IgGs from guinea pig, rabbit, goat, cow, sheep, and horse. Protein G shows a broader range of binding to IgG subclasses than does staphylococcal protein A. Some of the most important application areas for protein G are the isolation and purification or the removal of IgG from serum, the purification of monoclonal antibodies, and the isolation of immune complexes. Protein G conjugates is commonly used as affinity adsorbents to purify immunoglobulins (antibodies) and immunoglobulin subtypes from serum, hybridoma ascites, tissue culture supernatants and other biological fluids.
Source E.coli

Molecular Weight

28 kDa
Theoretical pI 4.79
A280nm(1 mg/mL) 1.350
Purity The purity of Recombinant Streptococcus Protein G is greater than 95% as determined by SDS-PAGE
Formulation Recombinant Streptococcus Protein G was lyophilized from 5 mM PB, pH7.4
Storage Duration Recombinant Streptococcus Protein G is stable up to 3 years at -20 °C
Storage Recombinant Streptococcus Protein G is stable at 2-8 °C, but should be kept at -20 °C for long term storage. Avoid repeated freeze/thaw cycles.
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