细胞器
干燥
内质网
细胞质
细胞生物学
生物化学
生物
干燥耐受性
氨基酸
膜蛋白
化学
植物
膜
作者
Yun Liu,Guobao Liu,Ranhui Li,Yongdong Zou,Youliang Zheng
出处
期刊:Chinese Journal of Biotechnology
日期:2010-05-01
卷期号:26 (5): 569-575
被引量:2
摘要
Late embryogenesis abundant (LEA) proteins are well associated with the desiccation tolerance in organisms. LEA proteins are categorized into at least seven groups by virtue of similarities in their deduced amino acid sequences. Most of the LEA proteins have the characteristics of high hydrophilicity and thermo-stability. The LEA proteins are in unstructured conformation in aqueous solution. However, they adopted amphiphilic alpha-helix structure during desiccation condition. LEA proteins are localized to the different organelles in the cells, i.e. cytoplasm, endoplasmic reticulum, mitochondria and nucleus. The multi-functional capacity of LEA proteins are suggested, as protein stabilization, protection of enzyme activity, membrane association and stabilization, antioxidant function, metal-ion binding or DNA protection, etc. Here, we review the structural and functional characteristics of LEA proteins to provide a reference platform to understand their protective mechanisms during the adaptive response to desiccation in organisms.
科研通智能强力驱动
Strongly Powered by AbleSci AI