P4689
Protein G′ from proprietary source
recombinant, expressed in E. coli, lyophilized powder
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About This Item
UNSPSC-Code:
12352203
NACRES:
NA.46
Empfohlene Produkte
Rekombinant
expressed in E. coli
Qualitätsniveau
Konjugat
unconjugated
Form
lyophilized powder
Kapazität
~5 mg/mg, solid binding capacity (IgG)
Lagertemp.
−20°C
Allgemeine Beschreibung
Genetically engineered truncated protein G; retains affinity for IgG, but lacks albumin- and Fab- binding sites and membrane-binding regions.
Protein G is a group G Streptococcus protein and is a large multi-domain cell wall protein. It interacts with the Fc region of IgG (immunolglobulin) through its repeating 55-amino acid domain. Strain GX7809 and GX7805 contain two and three such protein repeats respectively.
Anwendung
Protein G has been used for the analysis of mAb (monoclonal antibody) synergy towards hCG (human chorionic gonadotropin) using surface plasmon resonance (SPR), and for serum IgG galactosylation obtained from RA (rheumatoid arthrtitis) patients and MRL-lpr mice.
Biochem./physiol. Wirkung
Protein G is implicated in the evasion of host defence response by Streptococcus, via its protein binding properties. It is interacts with α2-micorglobulin which is a predominant inhibitor of human plasma.
Physikalische Form
Lyophilized from water.
Haftungsausschluss
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type N95 (US)
Analysenzertifikate (COA)
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Enhancement in antigen binding by a combination of synergy and antibody capture.
Klonisch T et al
Immunology, 89(2), 165-171 (1996)
Agalactosyl IgG and beta-1,4-galactosyltransferase gene expression in rheumatoid arthritis patients and in the arthritis-prone MRL lpr/lpr mouse.
Jeddi PA et al
Immunology, 87(4), 654-659 (1996)
C R Goward et al.
The Biochemical journal, 267(1), 171-177 (1990-04-01)
The gene for Protein G from Streptococcus strain G148 was cloned and expressed in Escherichia coli. The regions on the gene corresponding to the albumin-binding domains and the Fab-binding region were then deleted by site-directed mutagenesis. The translation of regions
Arie Ryvkin et al.
PloS one, 7(8), e41469-e41469 (2012-08-08)
Polyclonal serum consists of vast collections of antibodies, products of differentiated B-cells. The spectrum of antibody specificities is dynamic and varies with age, physiology, and exposure to pathological insults. The complete repertoire of antibody specificities in blood, the IgOme, is
A novel, highly stable fold of the immunoglobulin binding domain of streptococcal protein G.
Gronenborn AM et al
Science, 253(5020), 657-661 (1991)
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