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KMID : 0624620170500080393
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BMB Reports
2017 Volume.50 No. 8 p.393 ~ p.400
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RING E3 ligases: key regulatory elements are involved in abiotic stress responses in plants
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Cho Seok-Keun
Ryu Moon-Young
Kim Jong-Hum
Hong Jeong-Soo
Oh Tae-Rin
Kim Woo-Taek
Yang Seong-Wook
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Abstract
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Plants are constantly exposed to a variety of abiotic stresses, such as drought, heat, cold, flood, and salinity. To survive under such unfavorable conditions, plants have evolutionarily developed their own resistant-mechanisms. For several decades, many studies have clarified specific stress response pathways of plants through various molecular and genetic studies. In particular, it was recently discovered that ubiquitin proteasome system (UPS), a regulatory mechanism for protein turn over, is greatly involved in the stress responsive pathways. In the UPS, many E3 ligases play key roles in recognizing and tethering poly-ubiquitins on target proteins for subsequent degradation by the 26S proteasome. Here we discuss the roles of RING ligases that have been defined in related to abiotic stress responses in plants.
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KEYWORD
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Abiotic stress, RING E3 ligase, Ubiquitin proteasome system (UPS), Ubiquitin, 26s proteasome
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