antigen

Also known as antibody generator, antigens, Ag

thumb|255px|An illustration that shows how antigens induce the immune system response by interacting with an [[antibody that matches the molecular structure of an antigen]]

AI overview

An antigen is a substance that triggers your immune system to respond by producing antibodies, which are proteins that recognize and bind to the antigen's specific molecular structure. Antigens matter because they're how your body identifies foreign invaders like viruses and bacteria, allowing your immune system to fight off infections and protect your health.

AI-generated from the Wikipedia summary — may contain errors.

Research

1,649,660 papers

Variant antigen gene expression in malaria.ReviewCellular microbiology · 2006Dzikowski R, Templeton TJ, Deitsch KDOI: 10.1111/j.1462-5822.2006.00760.x
Antigen-specific immunotherapies for acute myeloid leukemia.ReviewHematology. American Society of Hematology. Education Program · 2015Buckley SA, Walter RBDOI: 10.1182/asheducation-2015.1.584
S-antigen: from gene to autoimmune uveitis.ReviewExperimental eye research · 1990Shinohara T, Singh VK, Tsuda M et al.DOI: 10.1016/0014-4835(90)90125-e
Exchanges in the 'a' determinant of the hepatitis B virus surface antigen revisited.ReviewVirology · 2024Pondé RAA, Amorim GSPDOI: 10.1016/j.virol.2024.110184
The cellular and biochemical rules of lipid antigen presentation.ReviewEuropean journal of immunology · 2009De Libero G, Collmann A, Mori LDOI: 10.1002/eji.200939425
Gut microbiota as a source of a surrogate antigen that triggers autoimmunity in an immune privileged site.ReviewGut microbes · 2017Zárate-Bladés CR, Horai R, Mattapallil MJ et al.DOI: 10.1080/19490976.2016.1273996
Stable solid-phase Rh antigen.Transfusion medicine (Oxford, England) · 1997Yared MA, Moise KJ, Rodkey LSDOI: 10.1046/j.1365-3148.1997.d01-37.x
Characterization of proliferating cell nuclear antigen recognized by autoantibodies in lupus sera.The Journal of experimental medicine · 1984Takasaki Y, Fishwild D, Tan EMDOI: 10.1084/jem.159.4.981

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Wikidata facts

Image: Antibody.svg

Show 1 more fact

Commons category: Antigens

Sources (6)

via Wikidata · CC0

~19 min read

Article

13 sections

Contents

Etymology
Terminology
Sources
Exogenous antigens
Endogenous antigens
Autoantigens
Neoantigens
Viral antigens
Process
Nativity
Antigenic specificity
See also
References

thumb|255px|An illustration that shows how antigens induce the immune system response by interacting with an [[antibody that matches the molecular structure of an antigen]]

In immunology, an antigen (Ag) is a molecule, or portion thereof, that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body may trigger an immune response.