Свёртывание белков

Информация относительно биологически активной (нативной) конформации полипептидной цепи закодирована в аминокислотной последовательности. Вторичные, третичные и четвертичные структуры многих белков образуются в растворе самопроизвольно в пределах нескольких минут. Тем не менее в клетке имеются специальные белки (шапероны, см. Транслокация белков. Шапероны), функция которых обеспечивать свёртывание полипептидных цепей вновь синтезируемых белков. Выяснение закономерностей свёртывания полипептидных цепей является одной из важнейших задач биохимии. В случае успеха появилась бы возможность предсказывать нативные конформации белков на основании данных об аминокислотных последовательностях, реконструируемых на основании относительно легко доступных ДНК-последовательностей (см. Секвенирование ДНК).


Биомолекулы. Пептиды и белки / Свёртывание белков

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