泛素
蛋白酶体
生物
细胞生物学
功能(生物学)
非生物胁迫
泛素结合酶
非生物成分
蛋白质降解
翻译(生物学)
泛素连接酶
生物化学
生态学
信使核糖核酸
基因
标识
DOI:10.1016/bs.ircmb.2018.05.012
摘要
Ubiquitination is a prevalent post-translation modification system that is involved in almost all aspects of eukaryotic biology. It involves the attachment of ubiquitin, a small, highly conserved protein to selected substrates. The most notable function of ubiquitin is the targeting of modified proteins to the multi-proteolytic 26S proteasome complex for degradation. The ubiquitin proteasome system (UPS) regulates the abundance of numerous enzymes, structural and regulatory proteins ensuring proper cellular function. Plants utilize the UPS to facilitate cellular changes required to respond to and tolerate adverse growth conditions. In this review, the regulatory role of the UPS in responses to abiotic stress is discussed, particularly the function of ubiquitin-dependent degradation in the suppression, activation and attenuation or termination of stress signaling.
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