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RIG-like receptors (retinoic acid-inducible gene-I-like receptors, RLRs) are a type of intracellular pattern recognition receptor involved in the recognition of viruses by the innate immune system. RIG-I (retinoic-acid inducible gene or DDX58) is the best characterized receptor within the RIG-I like receptor (RLR) family. Together with MDA5 (melanoma differentiation-associated 5) and LGP2 (laboratory of genetics and physiology 2), this family of cytoplasmic pattern recognition receptors (PRRs) are sentinels for intracellular viral RNA that is a product of viral infection. The RLR receptors provide frontline defence against viral infections in most tissues.

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  • RIG-I-like receptor
  • RIG-I-подобные рецепторы
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  • RIG-I-подобные рецепторы (англ. RIG-I-like receptors, RLR) — тип внутриклеточных рецепторов опознавания паттерна, участвующих в распознавании вирусов системой врождённого иммунитета организма. В эту группу входят три рецептора: RIG-I, MDA5 и LGP2. Они функционируют как сенсоры вирусной репликации в клеточной цитоплазме и детектируют репликацию вирусов путём прямого взаимодействия с молекулами двуцепочечной РНК из генома РНК-содержащих вирусов или РНК, образующейся при репликации последних. Два рецептора группы, RIG-I и MDA5, способны индуцировать клеточный ответ, реализуемый через участие их CARD-домена. LGP2 не содержит CARD-домен и не способен сам инициировать ответ, но необходим для эффективного антивирусного клеточного ответа, опосредованного RIG-I или MDA5.
  • RIG-like receptors (retinoic acid-inducible gene-I-like receptors, RLRs) are a type of intracellular pattern recognition receptor involved in the recognition of viruses by the innate immune system. RIG-I (retinoic-acid inducible gene or DDX58) is the best characterized receptor within the RIG-I like receptor (RLR) family. Together with MDA5 (melanoma differentiation-associated 5) and LGP2 (laboratory of genetics and physiology 2), this family of cytoplasmic pattern recognition receptors (PRRs) are sentinels for intracellular viral RNA that is a product of viral infection. The RLR receptors provide frontline defence against viral infections in most tissues.
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