The involvement of the N-terminal PHR domain of Arabidopsis cryptochromes in mediating light signaling  

作　　者：Wenxiu Wang Zhilei Mao Tongtong Guo Shuang Kou Hong-Quan Yang 

机构地区：[1]Shanghai Key Laboratory of Plant Molecular Sciences,College of Life Sciences,Shanghai Normal University,Shanghai 200234,China

出　　处：《aBIOTECH》2021年第2期146-155,共10页生物技术通报（英文版）

基　　金：by The National Key Research and Development Program of China grant(2017YFA0503802);The National Natural Science Foundation of China grants(31530085,31900609,31900207,and 32000183);The Science and Technology Commission of Shanghai Municipality grant(18DZ2260500).

摘　　要：Light is a key environmental cue that fundamentally regulates all aspects of plant growth and development,which is mediated by the multiple photoreceptors including the blue light photoreceptors cryptochromes(CRYs).In Arabidopsis,there are two well-characterized homologous CRYs,CRY1 and CRY2.Whereas CRYs are flavoproteins,they lack photolyase activity and are characterized by an Nterminal photolyase-homologous region(PHR)domain and a C-terminal extension domain.It has been established that the C-terminal extension domain of CRYs is involved in mediating light signaling through direct interactions with the master negative regulator of photomorphogenesis,COP1.Recent studies have revealed that the N-terminal PHR domain of CRYs is also involved in mediating light signaling.In this review,we mainly summarize and discuss the recent advances in CRYs signaling mediated by the N-terminal PHR domain,which involves the N-terminal PHR domain-mediated dimerization/oligomerization of CRYs and physical interactions with the pivotal transcription regulators in light and phytohormone signaling.

关 键 词：Light signaling CRYPTOCHROMES PHOTOMORPHOGENESIS Phytohormone signaling 

分 类 号：Q94[生物学—植物学]