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  Puredown Protein A-Agarose, BSA-binding site blocked

 
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Desctiption
Protein A is a 40-60 kDa MSCRAMM surface protein originally found in the cell wall of the bacteria Staphylococcus aureus. It is encoded by the spa gene and its regulation is controlled by DNA topology, cellular osmolarity, and a two-component system called ArlS-ArlR. It has found use in biochemical research because of its ability to bind immunoglobulins. It binds proteins from many of mammalian species, most notably IgGs. It binds with the Fc region of immunoglobulins through interaction with the heavy chain.
The protein A molecule is heat-stable and retains its native conformation when exposed to denaturing reagents such as 4M urea, 4M thiocyanate and 6M guanidine hydrochloride. Puredown Protein A is covalently coupled to highly cross-linked agarose bead. This product is provided preblocked with fatty acid free bovine serum albumin and have been extensively washed to reduce non-specific binding. Formulations are ready to use and 10ul of agarose per 1ug of primary antibody can be used in standard immunoprecipitation procedures.

Cat No Size Price($)
P9201-400 40ml 860
P9201-200 20ml 470
P9201-100 10ml 250
P9201-050 5ml 136
P9201-015 1.5 ml 46
 
 

Formulation
Puredown Protein A-Agarose is supplied in a volume of 1.5ml consisting of 0.5ml Protein A agarose suspended in 0.08% sodium azide/PBS.

Store at 2-8 C



Cat No Product Size
P9203-015 Puredown Protein A/G-Agarose,BSA-binding site blocked 1.5ml
P9202-015 Puredown Protein G-Agarose,BSA-binding site blocked 1.5ml