Protein G

Instruction manual

First Edition (Revised on April, 2016)


Streptococcal protein G is a kind of cell wall protein from β-hemolytic Streptococcci, it can be combined with the Fc region of various mammalian IgG. 


Source: Prokaryotic expression. 

Host: E. coli.   

Tags: N-terminal His-Tag 

Purity: >95% 

Traits: Freeze-dried powder 

Buffer formulation: PBS, pH 7.4. 

Original Concentration: 1.0 mg/mL. 

Applications: Antibody purification; Positive Control; Immunogen; SDS-PAGE; WB.(May be suitable for use in other assays to be determined by the end user.) 

[ USAGE ] 

Reconstitute in PBS (pH 7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex. 


Storage: Avoid repeated freeze/thaw cycles.             

Aliquot and store at -80°C for 12 months. 

 Stability Test: The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed.The loss rate is less than 5% within the expiration date under appropriate storage condition.