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IgD

American  
Immunology.
  1. immunoglobulin D: a class of antibodies present as an antigen receptor on most cell surfaces and predominant on human B cells.


Etymology

Origin of IgD

First recorded in 1960–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Similar to IgM, BCRs of the IgD class are found on the surface of naïve B cells.

From Textbooks • Jun. 9, 2022

IgA and IgD also have three constant domains per heavy chain, whereas IgM and IgE each have four constant domains per heavy chain.

From Textbooks • Jun. 9, 2022

Only IgM is secreted, however, and no other nonreceptor function for IgD has been discovered.

From Textbooks • Jun. 19, 2013

There are five different classes of antibody found in humans: IgM, IgD, IgG, IgA, and IgE.

From Textbooks • Jun. 19, 2013

Mature B cells that leave the bone marrow express both IgM and IgD, but both antibodies have the same antigen specificity.

From Textbooks • Jun. 19, 2013