Hy5-cop1

Author: pcmx

August undefined, 2024

WebHY5 is a bZIP transcription factor that binds directly to the promoters of light-inducible genes, promoting their expression and photomorphogenic development [1]. The SUB1 gene encodes a Ca2+-binding protein that suppresses light-dependent accumulation of the transcription factor HY5 [2]. Web9 mei 2016 · Moreover, ABI4 and HY5 antagonistically regulate the expression of CONSTITUTIVE PHOTOMORPHOGENIC1 (COP1) and the subsequent greening …

Identification of a structural motif that confers specific interaction ...

Web25 mei 2000 · HY5 is a bZIP transcription factor that binds directly to the promoters of light-inducible genes, promoting their expression and photomorphogenic development. COP1 … Web29 apr. 2016 · Author Summary In darkness, the ubiquitin E3 ligase COP1 accumulates in the nucleus and mediates ubiquitination and degradation of positive regulators of photomorphogenesis, such as HY5. In response to light, COP1 activity is reduced to ensure proper photomorphogenic development. However, post-translational … ally card control app

HY5 functions as a systemic signal by integrating BRC1-dependent ...

Web11 apr. 2024 · 植物生长发育研究领域：毛同林课题组发现在侧根起始过程中，微管稳定蛋白 TPXL5 介导侧根建成细胞的周质微管重组和不对称径向扩张，而且该过程被光信号通路中的重要转录因子 HY5 所调控。该研究为揭示周质微管重组对侧根起始的必要性提供了重要遗传学证据；阐明了在侧根起始过程中, HY5 ... Web11 sep. 2024 · uv-b通过uvr8和cop1的相互作用进而积累了hy5，从而上调下游黄酮类基因的表达，如：拟南芥[19]、杭白菊[20]等。目前大部分报道都集中在单一蓝光或紫外光对植物次级代谢产物含量的研究上。而蓝光耦合uv-a的协同作用对蔬菜营养品质调控方面的研究鲜有报 … Web28 apr. 2024 · These studies suggest that, on one hand, CRY1 and CRY2 interact with COP1 to directly inhibit its activity, and on the other hand, they also interact with SPAs in a blue light-dependent manner, to indirectly attenuate COP1 activity by disrupting the COP1–SPAs core complex, leading to efficient promotion of HY5 and CO stability (Fig. … ally carindale

PIFs- and COP1-HY5-mediated temperature signaling in higher …

Webbbx20 bbx21 bbx22 (bbx202422) triple mutant mimics the phenotypes of hy5 in the light and its ability to suppress the cop1 mutant phenotype in darkness. Furthermore, 84% of genes that exhibit differential expression in bbx202422 are also regulated by HY5, and we provide evidence that HY5 requires the B-box proteins for transcriptional regulation. Web15 sep. 2000 · Degradation of HY5 in darkness requires its COP1 interaction domain, supporting the hypothesis that COP1 targets HY5 for degradation. Since COP1 displays a light-mediated nucleo-cytoplasmic repartitioning ( von Arnim and Deng, 1994 ), enriched in the nucleus in the dark and depleted from the nucleus in the light, light ultimately … allycarra vscoWebAbstract. Elongated hypocotyl5 (HY5) is a key transcription factor that promotes photomorphogenesis. Constitutive photomorphogenic1 (COP1)-Suppressor of … allycatofficial

"WebSupporting: 10, Mentioning: 180 - Plants require the UV-B photoreceptor UV RESISTANCE LOCUS 8 (UVR8) for acclimation and survival in sunlight. Upon UV-B perception, UVR8 switches instantaneously from a homodimeric to monomeric configuration, which leads to interaction with the key signaling protein CONSTITUTIVELY PHOTOMORPHOGENIC 1 … " - Hy5-cop1

Hy5-cop1

Targeted destabilization of HY5 during light-regulated

Web10 apr. 2024 · COP1 inactivation involved in rapid light-induced responses were compared to that of nuclear HY5. our investigation demonstrates that the COP1-HY5 complex is a novel integrator that plays an essential role in ethylene-promoted hypocotyl growth … Web15 sep. 2000 · Here we report that HY5 abundance peaks in early seedling development, consistent with its role in promoting photomorphogenesis. HY5 acts exclusively within a …

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Web29 sep. 2024 · ELONGATED HYPOCOTYL 5 (HY5) and CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) are two major nuclear regulators of light signaling acting downstream to the photoreceptors (Ang et al. 1998; Osterlund et al. 2000).HY5 is a key positive regulator of light signaling and photomorphogenesis whereas COP1, an E3 … WebAlthough epistasis of a putative null cop1-5 mutation over a hy5 mutation implied that COP1 acts downstream of HY5, the same hy5 mutation can suppress the dark …

Web29 mrt. 2024 · Nitric oxide (NO), as a major gaseous signaling molecule, may be involved in a series of plant physiological processes, ranging from seed germination to root development to seedling growth, and participate in plant response to abiotic stress, including drought stress, low-temperature stress, heat stress, high-salinity stress, ozone stress, … Web18 jan. 2024 · To investigate the molecular mechanisms for UVA- and UVB-induced anthocyanin accumulation, the genes encoding ELONGATED HYPOCOTYL 5 (HY5), …

Web17 mrt. 2024 · Basic leucine zipper (bZIP) transcription factor. Nuclear localization. Involved in light-regulated transcriptional activation of G-box-containing promoters. Negatively regulated by Cop1. Although cytokinins do not appear to affect the gene's promoter activity, they appear to stabilize the protein. HY5 plays a role in anthocyanin … Webdemonstrate that HY5 levels are regulated by low temperature transcriptionally, via a CBF- and ABA-independent pathway, and posttranslationally, via protein stabilization through the nu-clear depletion of COP1. These data indicate that HY5, COP1, and the Z-box integrate cold and light signaling to promote the cold acclimation response. Results

Web2 apr. 2024 · 研究揭示桃近核处果肉着色形成机制. 近核红是桃特有的现象，其性状表现为在果实发育的后期，靠近果核处果肉花青苷积累变红，这种性状不利于 ...

Web11 mei 2024 · COP1 was first identified as an E3 ligase of the downstream photomorphogenesis-promoting transcription factor HY5; COP1 was found to directly interact with HY5 via its WD40 domain and degrade HY5 in darkness through the ubiquitin–proteasome system (Ang and Deng, 1994, Ang et al., 1998, Osterlund et al., … ally car financial loginWeb30 okt. 2024 · HY5 acts upstream of BBX30 and BBX31, both of which repress photomorphogenesis, and negatively regulates their transcription (Heng et al., 2024; … allycia84WebCOP1 destabilizes HY5 to repress photomorphogenesis in darkness. On light illumination, accumulated HY5 regulates the expression of a large number of genes to optimize photomorphogenesis. Thus, COP1-HY5 defines a regulatory hub … allycat llc sarasotaWeb16 aug. 2001 · COP1 specifically targets HY5 for degradation via the 26 S proteasome in the dark through their direct physical interaction. Little is known regarding how light signals perceived by photoreceptors are transduced to regulate COP1. Arabidopsis has two related cryptochromes (cry1 and cry2) mediating various blue/ultraviolet-A light responses. ally casazzaWeb13 jul. 2024 · Genetically, mutants of hy5 are largely epistatic to weaker alleles of cop1 in darkness 13, suggesting that accumulation of HY5 is partly causing the constitutively … ally centre nova scotiaWeb20 feb. 2024 · In a prolonged response to low light with UV-B, the E3 ligase responsible for HY5 degradation switches from CUL4-DDB1-COP1 to CUL4-DDB1-RUP1/RUP2. Meanwhile, COP1 directly targets RUP1/RUP2 for degradation, leading to balanced accumulation of RUP1/RUP2, alleviation of the COP1–HY5 interaction, and stabilization … ally car refinance calculatorWebWhen plant seeds are buried in the soil and germinate in darkness, they will exhibit an etiolated phenotype, called skotomorphogenesis, characterized by formation of apical hooks and closed cotyledon, promotion of hypocotyl elongation, and … ally ciccarelli