http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Photoactivation and inactivation of <i>Arabidopsis</i> cryptochrome 2
Wang, Qin,Zuo, Zecheng,Wang, Xu,Gu, Lianfeng,Yoshizumi, Takeshi,Yang, Zhaohe,Yang, Liang,Liu, Qing,Liu, Wei,Han, Yun-Jeong,Kim, Jeong-Il,Liu, Bin,Wohlschlegel, James A.,Matsui, Minami,Oka, Yoshito,Lin American Association for the Advancement of Scienc 2016 Science Vol.354 No.6310
<P>Cryptochromes are blue-light receptors that regulate development and the circadian clock in plants and animals. We found that Arabidopsis cryptochrome 2 (CRY2) undergoes blue light-dependent homodimerization to become physiologically active. We identified BIC1 (blue-light inhibitor of cryptochromes 1) as an inhibitor of plant cryptochromes that binds to CRY2 to suppress the blue light-dependent dimerization, photobody formation, phosphorylation, degradation, and physiological activities of CRY2. We hypothesize that regulated dimerization governs homeostasis of the active cryptochromes in plants and other evolutionary lineages.</P>
Xiaomei Qin,Sheng Huang,Yanqing Liu,Mingdi Bian,Wuliang Shi,Zecheng Zuo,Zhenming Yang 한국식물학회 2017 Journal of Plant Biology Vol.60 No.1
Aluminium (Al) toxicity is a primary limitation of crop production in acid soils, which take over 40% of arable soil worldwide. In previous studies, a series of genes have been identified to regulate the plant Al resistance or tolerance. However, none of E3 ubiquitin ligase, the key factor of ubiquitination that plays an important role in plant growth and development, has been characterized for Al response in Arabidopsis. In this study, an E3 ubiquition ligase gene AtATRF1 (Al Tolerance RING Finger 1), a homolog of RAD18 interacting RAD6 to repair the damaged DNA in human and yeast, is isolated from Arabidopsis. It encodes a predicted protein of 296 amino acids with a C3HC4 type RING finger domain. The expression of AtATRF1 is induced by Al, and the transgenic plant overexpressing AtATRF1 enhances the Al tolerance. Similar as RAD18, the AtATRF1 locates in nucleus and regulates the expression of AtATR, which involves in DNA repair and Al response in Arabidopsis. Our results indicate that nuclearlocated AtATRF1 may interact and ubiquitinate the transcriptional regulator of AtATR to mediate the Al tolerance of Arabidopsis.