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  2. Diego antigen system - Wikipedia

    en.wikipedia.org/wiki/Diego_antigen_system

    The Wright a antigen (Wr a), a very low frequency blood type, was also discovered in 1953. The Wright b antigen (Wr b), a very high frequency blood type, was discovered about a decade later, but the two types were not recognized as a pair for another 20 years. The Wright group was eventually identified as a single point mutation on the SLC4A1 gene.

  3. Ii antigen system - Wikipedia

    en.wikipedia.org/wiki/Ii_antigen_system

    The Ii antigen system is a human blood group system based upon a gene on chromosome 6 and consisting of the I antigen and the i antigen. [1] The I antigen is normally present on the cell membrane of red blood cells in all adults, while the i antigen is present in fetuses and newborns. [2]

  4. Immunocytochemistry - Wikipedia

    en.wikipedia.org/wiki/Immunocytochemistry

    Immunocytochemistry labels individual proteins within cells, such as TH (green) in the axons of sympathetic autonomic neurons.. Immunocytochemistry (ICC) is a common laboratory technique that is used to anatomically visualize the localization of a specific protein or antigen in cells by use of a specific primary antibody that binds to it.

  5. Antigen - Wikipedia

    en.wikipedia.org/wiki/Antigen

    Antigen can originate either from within the body ("self-protein" or "self antigens") or from the external environment ("non-self"). [2] The immune system identifies and attacks "non-self" external antigens. Antibodies usually do not react with self-antigens due to negative selection of T cells in the thymus and B cells in the bone marrow. [5]

  6. History and naming of human leukocyte antigens - Wikipedia

    en.wikipedia.org/wiki/History_and_naming_of...

    It was found that some antigens that behaved like A and B antigens but could be excluded based on '2-type max' exclusion. Thus a new group, "C" was created. Classification of C antigens is still ongoing, and they have retained the name Cw as many serotypes have not been developed. The classification of the "A4" antigens was complicated.

  7. Category:Blood antigen systems - Wikipedia

    en.wikipedia.org/wiki/Category:Blood_antigen_systems

    Download as PDF; Printable version; In other projects ... This category should contain the pages of the 26 human blood antigen systems important in transfusion ...

  8. Immune system - Wikipedia

    en.wikipedia.org/wiki/Immune_system

    A scanning electron microscope image of a single neutrophil (yellow/right), engulfing anthrax bacteria (orange/left) – scale bar is 5 μm (false color). The immune system is a network of biological systems that protects an organism from diseases.

  9. Polyclonal B cell response - Wikipedia

    en.wikipedia.org/wiki/Polyclonal_B_cell_response

    The antibodies will attack the self-antigens and the tissues harboring them by activating various mechanisms like the complement activation and antibody-dependent cell-mediated cytotoxicity. Hence, wider the range of antibody-specificities, greater the chance that one or the other will react against self-antigens (native molecules of the body).

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