IgG1 (タンパク質 | 抗体 | cDNA クローン | ELISA キット)

All IgG1 reagents are produced in house and quality controlled, including 4 IgG1 Antibody, 1 IgG1 Lysate, 4 IgG1 Protein. All IgG1 reagents are ready to use.

IgG1 Protein (4)

IgG1 Antibody (4)

IgG1 Lysate (1)

IgG1 の背景知識

As a monomeric immunoglobulin that is predominately involved in the secondary antibody response and the only isotype that can pass through the human placenta, Immunoglobulin G (IgG) is synthesized and secreted by plasma B cells, and constitutes 75% of serum immunoglobulins in humans. 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 (ADCC). IgG tetramer contains two heavy chains (5 kDa ) and two light chains (25 kDa) linked by disulfide bonds, that is the two identical halves form the Y-like shape. IgG is digested by pepsin proteolysis into Fab fragment (antigen-binding fragment) and Fc fragment ("crystallizable" fragment). IgG1 is most abundant in serum among the four IgG subclasses (IgG1, 2, 3 and 4) and binds to Fc receptors (FcγR ) on phagocytic cells with high affinity. Fc fragment is demonstrated to mediate phagocytosis, trigger inflammation, and target Ig to particular tissues. Protein G or Protein A on the surface of certain Staphylococcal and Streptococcal strains specifically binds with the Fc region of IgGs, and has numerous applications in biotechnology as a reagent for affinity purification. Recombinant IgG Fc Region is suggested to represent a potential anti-inflammatory drug for treatment of human autoimmune diseases.

IgG1 の参考文献

  • Carosella ED. et al., 1988, Cell Immunol. 112: 262-70.
  • Eckle I. et al., 1990, Clin Exp Immunol. 81: 352-6.
  • Lorriaine C. et al., 1995, J Biol Chem. 270:8164-71.
  • Gomez-Guerrero C. et al., 2000, J Immunol. 164: 2092-101.
  • Sprague ER. et al., 2004, J Biol Chem. 14: 14184-93.
  • Anthony RM. et al., 2008, Science. 320: 373-6.