Biopolym. Cell. 2009; 25(1):3-11.
http://dx.doi.org/10.7124/bc.0007C5
Огляди
Рослинний сульфоліпід. ІІ. Досліди з мутантами та вплив фосфорного дефіциту
1Таран Н. Ю., 1Оканенко О. А., 1Косик О. І.
  1. Київський національний університет імені Тараса Шевченка
    вул. Володимирська 64, Київ, Україна, 01601

Abstract

Вивчення дефіцитних за сульфохіновозилдіацилгліцеролом (СХДГ) мутантів показало, що утворення попередника сульфонової кислоти UDP-сульфохіновози у вищих рослин каталізує рослинний білок SQD1. Другий необхідний рослинний фермент, SQD2, має велику подібність до глікозилтрансфераз. Вважають, що цей білок і є сульфоліпідсинтетазою. Встановлено також, що для стійкої активності ФС ІІ необхідна присутність СХДГ, який бере участь у репарації ФС ІІ через світлозалежний механізм. За умов фосфорного голодування зниження вмісту аніонного фосфатидилгліцеролу супроводжується зростанням кількості сульфоліпідів, що таким чином підтримує відносно стійкий рівень вмісту кислих ліпідів у мембранах хлоропластів.
Keywords: гліколіпід, сульфоліпід, сульфохіновозилдіацилгліцерол, SQDG
Повний текст: (PDF, англійською)

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