SAB4200786

Sigma-Aldrich

Anti-Human IgG1 antibody, Mouse monoclonal

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

Synonym(s):
Anti-Human immunoglobulin G1
NACRES:
NA.46
Pricing and availability is not currently available.

Quality Level

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.

Immunogen

The Fc fragment of a human IgG1 myeloma protein.

Application

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.

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
B Rocchelli et al.
European neurology, 22(1), 35-42 (1983-01-01)
The IgG oligoclonal bands in CSF can be found in high percentage of MS patients but the existence of a limited number of cases with CSF normal IgG profile is known as well. In the present study 63 out of...
R Stevens et al.
Journal of clinical immunology, 3(1), 65-69 (1983-01-01)
Peripheral blood leukocytes from individuals immunized with tetanus toxoid can be stimulated by pokeweed mitogen to produce IgG anti-tetanus toxoid antibody (IgG-Tet) in vitro. Previous studies have shown that treatment of these cells with tetanus toxoid or anti-human IgG reagents...
F W van der Meulen et al.
British journal of haematology, 46(1), 47-56 (1980-09-01)
The purpose of this study was to determine whether quantitative or qualitative factors are of major importance in the destruction of red cells sensitized with incomplete warm autoantibodies of subclass IgG1. To that end, the relative amount of igG1 antibody...
R Jefferis et al.
Immunology letters, 10(3-4), 223-252 (1985-01-01)
Seventy-four monoclonal antibodies (McAb) of putative specificity for human IgG (11), the IgG sub-classes (59) or Gm allotypes (4) have been evaluated for reactivity and specificity in eight laboratories employing different assay techniques or protocols. For the IgG, IgG3, IgG4...

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