IgG

American  

Immunology.

1. immunoglobulin G: a class of circulating antibodies predominant in serum, produced by plasma cells and memory cells in response to pathogens and other foreign substances, able to pass through the placental wall to the fetal circulation to impart immune defense for the period of infancy.

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Etymology

Origin of IgG

First recorded in 1960–65

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Example Sentences

See Examples For:

IgG

None of these differences, like IgG which is also in human breast milk, is necessarily harmful to humans.

From Salon ● Jan. 19, 2024

These discoveries provide important scientific evidence that improved immunity responses from both T cells and IgG antibodies contribute to greater and long-lasting protection of intranasal vaccines from COVID-19.

From Science Daily ● Jan. 10, 2024

The IgA antibodies were shown to bind stronger to the spike protein of SARS-CoV-2 and were more effective in neutralizing the virus compared to the original IgG antibodies.

From Science Daily ● Jan. 10, 2024

In a process called complement fixation, IgM and IgG in serum bind to antigens and provide docking sites onto which sequential complement proteins can bind.

From Textbooks ● Jun. 9, 2022

IgG is a major antibody of late primary responses and the main antibody of secondary responses in the blood.

From Textbooks ● Jun. 19, 2013

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