antigen

antigen
Abbreviation: Ag
A macromolecule (usually a protein foreign to the organism), which elicits an immune response on first exposure to the immune system by stimulating the production of antibodies specific to its various antigenic determinants. During subsequent exposures, the antigen is bound and inactivated by these antibodies.
Synonym: immunogen.

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • antigen — ANTIGÉN s.n. Substanţă de natură proteică, determinând, la introducerea în organism, apariţia unui anticorp. – Din fr. antigène. Trimis de ana zecheru, 13.09.2007. Sursa: DEX 98  antigén s. n., pl. antigéne Trimis de siveco, 26.05.2005. Sursa:… …   Dicționar Român

  • antigen — (n.) substance that causes production of an antibody, 1908, from Ger. Antigen, from Fr. antigène (1899), from anti (see ANTI (Cf. anti )) + Gk. gen (see GEN (Cf. gen)) …   Etymology dictionary

  • antigen — antigen. См. антиген. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • antigen — àntigēn m DEFINICIJA biol. bilo koja supstanca koja u određenim uvjetima može inducirati specifičan imunološki odgovor i potaknuti stvaranje protutijela i senzibiliziranih T limfocita, s kojima onda reagira ETIMOLOGIJA anti + gen …   Hrvatski jezični portal

  • antigen — ► NOUN ▪ a harmful substance which causes the body to produce antibodies. DERIVATIVES antigenic adjective …   English terms dictionary

  • antigen — ☆ antigen [an′tə jən, an′təjen΄ ] n. [ ANTI + GEN] a protein, toxin, or other substance of high molecular weight, to which the body reacts by producing antibodies antigenic [an΄tijen′ik] adj …   English World dictionary

  • Antigen — Each antibody binds to a specific antigen; an interaction similar to a lock and key. An antigen is a foreign molecule that, when introduced into the body, triggers the production of an antibody by the immune system. The immune system will then… …   Wikipedia

  • Antigen — Antigene (engl. für Antibody generating) sind Stoffe, an die sich Antikörper und bestimmte Lymphozyten Rezeptoren spezifisch binden können (wobei letzteres in der Regel bewirkt, dass die Produktion von Antikörpern gegen das Antigen angeregt wird) …   Deutsch Wikipedia

  • antigen — antigenic /an ti jen ik/, adj. antigenically, adv. antigenicity /an ti jeuh nis i tee/, n. /an ti jeuhn, jen /, n. 1. Immunol. any substance that can stimulate the production of antibodies and combine specifically with them. 2. Pharm. any… …   Universalium

  • Antigen — An|ti|gen 〈n. 11; Biochem.〉 artfremder Eiweißstoff, der im Blut von Mensch u. Tier die Bildung von Antikörpern anregt [<grch. anti „gegen“ + genos „Art, Geschlecht“] * * * An|ti|gen [Kurzw. aus Antisomatogen (↑ anti griech. sõma = Körper; ↑… …   Universal-Lexikon

  • antigen — UK [ˈæntɪdʒ(ə)n] / US [ˈæntɪdʒən] noun [countable] Word forms antigen : singular antigen plural antigens medical a harmful substance that causes your body to produce antibodies to fight it …   English dictionary

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