Protein A (His tag) (80R-2535)

Purified recombinant S.aureus Protein A (HIS-tag)

Synonyms Protein A protein
Species S.aureus
Protein Type Recombinant

Specifications

Expression System E.coli
Grade & Purity > 97% pure
Method of Purification Protein A was purified using a a proprietary chromatographic technique.
Molecular Weight 39.21 kDa
Tag/Conjugate His tag
Form & Buffer Supplied in lyophilized form

Storage & Safety

Storage Store at 4 deg C for short term storage. Aliquot and store at -20 deg C for long term storage. Avoid repeated freeze/thaw cycles.
Endotoxin Levels <0.1 ng/ug

General Information

Biological Significance Protein A is a 40-60 kDa MSCRAMM (microbial surface components recognizing adhesive matrix molecules) 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.

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