Biopolym. Cell. 2013; 29(3):177-187.
Огляди
Особливості біосинтезу білка у вищих евкаріотів
1Єльська А. В., 1Негруцький Б. С., 1Шалак В. Ф., 1Вісловух А. А., 1Власенко Д. О., 1Новосильна О. В., 1Лукаш Т. О., 1Верем’єва М. В.
  1. Інститут молекулярної біології і генетики НАН України
    Вул. Академіка Заболотного, 150, Київ, Україна, 03680

Abstract

В огляд підсумовано найвагоміші результати більш ніж сорокалітніх досліджень особливостей трансляції у вищих евкаріотів, з-поміж яких: 1) відкриття адаптації клітинних пулів тРНК і аміноацил-тРНК синтетаз (АРСаз) до синтезу специфічних білків і модуляції швидкості елонгації рідкісними ізоакцепторними тРНК; 2) визначення шапероноподібних властивостей компонентів апарату трансляції (рибосом і фактора елонгації eEF1A), характеристика високомолекулярних комплексів АРСаз; 3) встановлення функціональної компартменталізації, у тому числі каналювання тРНК в евкаріотних клітинах; 4) з’ясування молекулярних механізмів каналювання, що відбувається за посередництвом різних неканонічних комплексів, які містять eEF1A, тРНК і АРС-ази; 5) характеристика кристалічної структури eEF1A2; 6) порівняння просторової організації, молекулярної динаміки, тирозинового фосфорилювання і здатності до взаємодії з різними білками – партнерами ізоформ eEF1A1 i eEF1A2; 7) виявлення ролі мікроРНК у контролі експресії протоонкогенної ізоформи eEF1A2 в ракових клітинах; 8) вивчення спричинених раком змін комплексу факторів елонгації трансляції eEF1H і механізмів дії онкогену PTI-1; 9) відкриття третього сайта зв’язування тРНК у рибосомах ссавців та алостеричної взаємодії А- і Е-сайтів 80S рибосоми.
Keywords: біосинтез білка, тРНК, аміноацил-тРНК синтетази, eEF1A, eEF1H, РТІ-1

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