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PROTGA-RO Roche

Protein G Agarose

Synonym: agarose, protein g

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Properties

Related Categories Molecular Biology, Protein A, G, Proteomics, Purification and Detection, Recombinant Protein Expression and Analysis More...
assay   >98% (HPLC and SDS-PAGE)
form   suspension
packaging   pkg of 15 mL (05015952001 [settled resin volume])
  pkg of 2 mL (11719416001 [settled resin volume])
  pkg of 5 mL (11243233001 [settled resin volume])
mfr. no.   Roche
shipped in   wet ice
storage temp.   2-8°C

Description

General description

Protein G was initially isolated from G148, a human group G Streptococcal strain. It is a cell wall protein and shows high affinity to IgG (immunoglobulin G). It has a putative molecular weight of 30,000Da. It interacts with all subclasses of human IgG and also binds to mouse, rabbit and goat IgG.

Specificity

Protein G is a cell wall protein, isolated from a specific bacterial strain, which has specific binding sites for certain classes of immunoglobulins from different species. Protein G binds nearly all subclasses of IgG, but no other classes of immunoglobulins.
Binding capacity: 20mg human IgG (polyclonal)/ml (the IgG is loaded at pH 7.0, and eluted with 200mM glycine, pH 2.8)
Structure: recombinant Protein G (E. coli, Mr = 22,000) is covalently coupled to crosslinked 4% agarose beads: 2.5mg Protein G (>98% pure)/1ml gel.

Application

Affinity chromatography using Protein G Agarose, like Protein A Agarose, is the method of choice for purification of IgG from many species. It has been used as a pre-clearing agent during-
• Ubiquitination assay
• Immunoprecipitation

Features and Benefits

Contents
Preswollen gel, ready-to-use, 2ml or 5ml gel (settled gel volume) in buffer that contains 14-19% ethanol as a preservative, nonsterile.
Protein G content: 2.5mg/ml preswollen gel

Quality

Purity: >98% (HPLC, SDS-PAGE); entirely free from staphylococcal enterotoxins.

Other Notes

For life science research only. Not for use in diagnostic procedures.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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