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Pack Size | Price | Availability | Quantity |
---|---|---|---|
20 KU | $2,170 | 7-10 days |
Biological Information | One unit digests ≥ 95% of 1µg human IgG when incubated in PBS buffer, pH 7.4 at 37°C for 30min. The specific activity is 20,000 unit/mg. |
Description | IdeS (IgG-degrading enzyme of Streptococcus pyogenes) is a secreted cysteine endopeptidase from the human pathogen S. pyogenes with an extraordinarily high degree of substrate specificity, catalyzing a single proteolytic cleavage at the lower hinge of human IgG. This proteolytic degradation promotes inhibition of opsonophagocytosis and interferes with the killing of group A Streptococcus. IdeS Protein, Streptococcus pyogenes, Recombinant (His & GST) is expressed in E. coli expression system with His and GST tag. The predicted molecular weight is 63.1 kDa and the accession number is F8V4V0-1. |
Species | Streptococcus pyogenes |
Expression System | E. coli |
Tag | His, GST |
Accession Number | F8V4V0-1 |
Construction | The streptococcus pyogenes IdeS (F8V4V0-1) (Asp30-Asn341) was expressed with the N-terminal polyhistidine-tagged a GST tag at the N-terminus (his-GST) |
Protein Purity | > 85 % as determined by SDS-PAGE. |
Molecular Weight | 63.1 kDa (predicted) |
Endotoxin | Please contact us for more information. |
Formulation | Supplied as sterile PBS, 50% glycerol, pH 7.4. |
Reconstitution | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
Stability & Storage | It is recommended to store the product under sterile conditions at -20°C to -80°C. Samples are stable for up to 12 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
Shipping | In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice. |
Research Background | IdeS (IgG-degrading enzyme of Streptococcus pyogenes) is a secreted cysteine endopeptidase from the human pathogen S. pyogenes with an extraordinarily high degree of substrate specificity, catalyzing a single proteolytic cleavage at the lower hinge of human IgG. This proteolytic degradation promotes inhibition of opsonophagocytosis and interferes with the killing of group A Streptococcus. |
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