Human IgG2 Fc Protein, Tag Free (SPR verified)

Source : 

Human IgG2 Fc, Tag Free (SPR verified) (IG2-H5206) is expressed from human 293 cells (HEK293). It contains AA Glu 99 - Lys 326 (Accession # P01859-1).

 

Molecule : IgG2 Fc

 

Synonyms : IGHG2

 

Format : Powder

 

Category : Other Recombinant Proteins

 

Accession : N/A

 

Storage : -20℃

 

Shipping condition : Powder,RT

 

Molecular Weight : 25.7 kDa

 

Characteristics :

This protein carries no "tag". The protein has a calculated MW of 25.7 kDa. The protein migrates as 33-35 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

 

Endotoxin Level : Less than 1.0 EU per μg by the LAL method.

 

Buffer : Tris with Glycine, Arginine and NaCl, pH7.5

 

Description :

Immunoglobulin G2 (IgG2) is a member of many immunoglobulin G developed and secreted by effective B cells. In wake of cutting by pepsin, IgG is divided into two F(ab)s with one antigen binding site and a high conserved Fc segment. The Fc segment bears a highly conserved N-glycosylation site. There are two members of IgG2: IgG2a and IgG2b. It was found that IgG2a was superior to IgG1 in activating complement. The glycosylation of the circulating immunoglobulin-γ (IgG) antibody molecules changes in rheumatoid arthritis. Ig gamma-2 chain Fc region contains two constant regions of IgG2 H chain (CH2, CH3).

 

References :

(1) Sikorav J.-L., et al., 1980, Nucleic Acids Res. 8:3143-3155.
(2) Ollo R., et al., 1981, Proc. Natl. Acad. Sci. U.S.A. 78:2442-2446.