< 1 EU per 1ug of protein (determined by LAL method)
Biological Activity Comment
1. Measured by its binding ability in a functional ELISA with Human Fc gamma RIIIA/CD16a (CAT# ATGP4102). The ED50 range ≤ 1.5 ug/ml., 2. Measured by its binding ability in a functional ELISA with Human Fc gamma RIIIA/CD16a (CAT# ATGP4116)., 3. Measured by its binding ability in a functional ELISA with Human Fc gamma RIIIA/CD16a (CAT# ATGP4098). The ED50 range ≤ 4 ug/ml.
宿主: 小鼠
宿主: HEK-293 Cells
Recombinant
>90 % as determined by SDS-PAGE.
应用备注
Optimal working dilution should be determined by the investigator.
限制
仅限研究用
状态
Liquid
浓度
1 mg/mL
储存条件
4 °C,-20 °C,-80 °C
储存方法
Can be stored at +2°C to +8°C for 1 week. For long term storage, aliquot and store at -20°C to -80°C. Avoid repeated freezing and thawing cycles.
抗原
IgG1 Fc
背景
Immunoglobulins are membrane-bound or secreted glycoproteins produced by B lymphocytes. IgG antibodies protect the body against the pathogens by agglutination and immobilization, complement activation, toxin neutralization, as well as the antibody-dependent cell-mediated cytotoxicity. IgG1 is most abundant in serum among the four IgG subclasses (IgG1, 2, 3 and 4) and binds to Fc receptors on phagocytic cells with high affinity. IgG comprise two identical light (L) and heavy (H) chains forming a 'Y-shaped' structure. It also is digested by pepsin proteolysis into two distinct fragments (Fab, Fc). Fc fragment is a homodimeric glycoprotein with one monomer consisting of two constant immunoglobulin domains (CH2, CH3) from the C-terminal half of one heavy chain. Through interaction with its ligands (FcγR, C1q and FcRn) it mediates various immune effector functions and increases the half-life of the antibody molecule. Recombinant IgG Fc is suggested to represent a potential anti-inflammatory drug for treatment of human autoimmune diseases. Recombinant human IgG1 Fc was expressed in HEK293 cell and purified by using conventional chromatography techniques.