IgG (immunoglobulin G) contributes to 10−20% of plasma protein and is regarded as one of the most predominant serum protein. It consists of four subclasses: IgG1, IgG2, IgG3 and IgG4. The IgG structure possesses four polypeptide chains containing two identical γ heavy (H) chains and two identical κ or λ light (L) chains of 50kDa and 25kDa respectively. Limited digestion using papain cleaves the antibody into three fragments, two of which are identical and contain the antigen-binding activity. They are known as fragment antigen binding (Fab) fragments. These fragments contain the light chains paired with the VH and CH1 domains of the heavy chains. The variable region of IgG antibody is specific to antigens and is highly conserved. IgG antibody is abundantly present in mother′s milk.
Especificidad
This product was prepared from monospecific antiserum by immunoaffinity chromatography using Bovine IgG coupled to agarose beads followed by solid phase adsorption(s) to remove any unwanted reactivities, pepsin digestion and chromatographic separation. Assay by immunoelectrophoresis resulted in a single precipitin arc against Anti-Peroxidase, Anti-Rabbit Serum, Bovine IgG and Bovine Serum. No reaction was observed against Anti-Pepsin or Anti-Rabbit IgG F(c).
Inmunógeno
Bovine IgG whole molecule
Acciones bioquímicas o fisiológicas
IgG (immunoglobulin G) antibody provides protection against bacterial, fungal and viral infections. Maternal IgG is transferred to fetus through the placenta that is vital for the immune defense of the neonate against infections. IgG antibody has its function similar to IgM antibody in complement system activation. IgG is involved in hypersensitivity type II and type III. It helps in opsonization, complement fixation and cell-mediated cytotoxicity.
Propiedades físicas
Antibody format: IgG F(ab′)2
Forma física
Supplied in 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2 with 10 mg/mL Bovine Serum Albumin (BSA) - Immunoglobulin and Protease free
Reconstitución
Reconstitute with 500 μ;L deionized water (or equivalent).
Cláusula de descargo de responsabilidad
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Of the five immunoglobulin isotypes, immunoglobulin G (IgG) is most abundant in human serum. The four subclasses, IgG1, IgG2, IgG3, and IgG4, which are highly conserved, differ in their constant region, particularly in their hinges and upper CH2 domains. These
Specific IgG for cat allergens in patients with allergic conjunctivitis.
Miyama A, et al.
International Ophthalmology, 35(4), 575-586 (2015)
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