Recombinant Alkali-tolerant Protein A (r-PA) INQUIRY

Cat.No: RP-100PA
Cat# RP-100PA
Product Name Recombinant Alkali-tolerant Protein A (r-PA)
Introduction Protein A is a cell wall protein deriving from Staphylococcus aureus which exhibits unique binding properties for IgG from a variety of mammalian species and for some IgM and IgA as well. It binds with the Fc region of immunoglobulins preferentially through interaction with the heavy chain. It is conjugated to a wide variety of reporter molecules including fluorescent dyes, enzyme markers, biotin, colloidal gold and radioactive iodine for use in immunology and other biological research without affecting the antibody binding site.
r-PA is improved in protein stability and alkali tolerant by residue substitution. It is also immobilized onto solid matirx such as agarose beads for IgG purification from ascitic fluid, serum, culture supernatants, cell extracts or interested proteins. For efficient covalently conjugation to resin, one cysteine residue is inserted at the C-terminus of rat-PA.
Source E.coli
Molecular Weight 28KDa
Purity Greater than 95% as determined by SDS-PAGE
Formulation Lyophilized from 5 mM PB, pH7.4
Storage Duration 3 years
Storage It 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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