Human IgG4 Fc Protein, Tag Free (MALS & SPR verified)

Immunoglobulin G4 (IgG4) 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. Ig gamma-4 chain Fc region contains two constant regions of IgG4 H chain (CH2, CH3) .

Product Specifications

Background

Specifications

This protein carries no "tag". The protein has a calculated MW of 25.8 kDa. The protein migrates as 30-33 kDa under reducing (R) condition, and 29 kDa and 55-60 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.

Accession Number

P01861

Expression Region

Glu 99 - Lys 327

Host

HEK293

Target

IgG4 Fc

Conjugation

Unconjugated

Tag

Native

Source

Human

Stability

-20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.