• USA Home
  • SAB4200786 - Anti-Human IgG1 antibody, Mouse monoclonal

SAB4200786 Sigma-Aldrich

Anti-Human IgG1 antibody, Mouse monoclonal

clone 8C/6-39, purified from hybridoma cell culture

Synonym: Anti-Human immunoglobulin G1

  •  NACRES NA.46



biological source   mouse
antibody product type   primary antibodies
clone   8C/6-39, monoclonal
form   buffered aqueous solution
species reactivity   human
concentration   ~1 mg/mL
application(s)   indirect ELISA: 3-6 μg/mL using Human IgG1 myeloma protein for coating.
isotype   IgG2a
shipped in   dry ice
storage temp.   −20°C


General description

Human IgGs consist of four subclasses (1-4) that can be recognized by antigenic differences in their heavy chains. They constitute approximately 65, 30, 5 and 4% of the total IgG, respectively. Each subclass has different biological and physiochemical properties. The IgG subclass may be preferentially produced in response to different antigens and pathological conditions. For instance, anti-polysaccharide responses are mainly of the IgG2 subclass while protein antigens give rise to IgG1 and IgG3 antibodies. Human IgG1 is the predominant subclass of in vivo and in vitro produced anti-tetanus toxoid antibodies. IgG1 and IgG3 are the only subclasses capable of adherence to mononuclear phagocytes and are recognized readily by the Fc receptors on various reticulo-endothelial cells while IgG2 and IgG4 are far less efficient. The amount of the different IgG subclasses present in the bloodstream varies with age. For example, IgG1 and IgG3 reach normal adult levels by 5-7 years of age while IgG2 and IgG4 levels raise more slowly, reaching adult levels at about 10 years of age. Serum IgG subclass deficiencies have been recorded for different patient groups. For example, a disproportionate elevation of IgG1 has been found in the cerebral spinal fluid of patients with multiple sclerosis. Examination of the distribution pattern of IgG subclasses in different types of diseases may provide insight into the immunological processes involved and thus may assist in the diagnosis of various disorders.


The Fc fragment of a human IgG1 myeloma protein.


Indirect ELISA: a working concentration of 3-6 μg/mL is recommended using 10 μg/mL Human IgG1 myeloma protein for coating.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15mM sodium azide.

Other Notes

In order to obtain best results in different techniques and preparations we recommend determining optimal working concentration by titration test.

Safety & Documentation

Safety Information

NONH for all modes of transport
Protocols & Articles
Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?