<?xml version="1.0" encoding="UTF-8"?>
<term>
  <id>12956</id>
  <title>blood group antigen</title>
  <longtitle>IUPAC Gold Book - blood group antigen</longtitle>
  <doi>10.1351/goldbook.12956</doi>
  <code>12956</code>
  <status>current</status>
  <definitions>
    <item>
      <id>1</id>
      <text>Surface antigen on erythrocytes, detectable with a specific antibody from other individuals.</text>
      <notes>
        <item>The major blood group antigens ABO and Rh (Rhesus) are used in routine blood banking to type blood, but there are many other blood group antigens that can also be detected in cross-matching.</item>
      </notes>
      <links>
        <item>
          <term>ABO blood group system</term>
          <url>https://goldbook.iupac.org/terms/view/12828</url>
        </item>
        <item>
          <term>Rhesus (Rh) factor</term>
          <url>https://goldbook.iupac.org/terms/view/13649</url>
        </item>
        <item>
          <term>cross-matching</term>
          <url>https://goldbook.iupac.org/terms/view/13054</url>
        </item>
        <item>
          <term>erythrocytes</term>
          <url>https://goldbook.iupac.org/terms/view/13127</url>
        </item>
      </links>
      <sources>
        <item>PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1135 (https://doi.org/10.1351/PAC-REC-11-06-03)</item>
      </sources>
    </item>
  </definitions>
  <altoutputs>
    <html>https://goldbook.iupac.org/terms/view/12956/html</html>
    <json>https://goldbook.iupac.org/terms/view/12956/json</json>
    <plain>https://goldbook.iupac.org/terms/view/12956/plain</plain>
  </altoutputs>
  <citation>Citation: 'blood group antigen' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12956</citation>
  <license>The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.</license>
  <collection>If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .</collection>
  <disclaimer>The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.</disclaimer>
  <accessed>2026-06-29T02:09:10+00:00</accessed>
</term>
