Alla primära antikroppar
Primära antikroppar, immunglobuliner som binder till specifika proteiner eller andra biomolekyler, används i många forskningsapplikationer och protokoll för att upptäcka mål av intresse. De utvecklas med hjälp av olika djurvärdar, inklusive mus, råtta, kanin, get, får och många andra.
Monoklonala och
polyklonala antikroppar En typ av primära antikroppar, monoklonala antikroppar, ger hög reproducerbarhet och låg korsreaktivitet och bakgrundsljud. En annan typ, polyklonala antikroppar, kostar ofta mindre och ger större affinitet och snabbare bindning. Båda produceras med plasma B-celler, men den förra använder samma klon och den senare använder olika kloner. Monoklonala antikroppar kräver hybridomcellinjer, och polyklonala antikroppar gör det inte.
Det finns också rekombinanta monoklonala antikroppar med liknande fördelar, som hög affinitet, skalbarhet och specificitet. De tillverkas med hjälp av in vitro kloning av plasma B-celler och expressionsvärdar.
Konjugerade
primära antikroppar Antikroppar kan märkas med olika fluoroforer eller detektionsmedel eller användas utan märkningar. Märkta primära antikroppar, även kända som konjugerade primära antikroppar, hjälper forskare att förenkla och effektivisera sina applikationer. De är kopplade med vanliga enzymer och färgämnen som Alexa Fluor och används ofta i protein- och cellanalys.
Tillämpningar Antikroppar för biovetenskapliga tillämpningar används i flödescytometri, western blotting, ELISA, immunhistokemi och immuncytokemi. Sekundära antikroppar kan tillsättas för att stödja detektion och rening av vissa antigener. De binder till den primära antikroppen, som binder till antigenet av intresse. Att hitta rätt kombination av antikroppar kan resultera i större antigenspecificitet och en stark, detekterbar signal.
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