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| 1 | Ubiquitination of Rheb governs growth factor-induced mTORC1 activation显示文摘Mechanistic target of rapamycin mTOR complex 1 (mTORC1)plays a key role in the integration of various environmental signals to regulate cell growth and metabolism,mTORC1 is recruited to the lysosome where it is activated by its interaction with GTP-bound Rheb GTPase.However,the regulatory mechanism of Rheb activity remains largely unknown.Here,we show that ubiquitination governs the nucleotide-bound status of Rheb.Lysosome-anchored E3 ligase RNF152 catalyzes Rheb ubiquitination and promotes its binding to the TSC complex.EGF enhances the deubiquitination of Rheb through AKT-dependent USP4 phosphorylation,leading to the release of Rheb from the TSC complex.Functionally,ubiquitination of Rheb is linked to mTORC1-mediated signaling and consequently regulates tumor growth.Thus,we propose a mechanistic model whereby Rheb-mediated mTORC1 activation is dictated by a dynamic opposing act between Rheb ubiquitination and deubiquitination that are catalyzed by RNF152 and USP4 respectively. | Lu Deng Lei Chen Linlin Zhao Yan Xu Xiaoping Peng Xinbo Wang Lin Ding Jiali Jin Hongqi Teng Yanming Wang Weijuan Pan Fei Yu Lujian Liao Li Li Xin Ge Ping Wang | 2019 | Cell Research2019,29,2: | 16 |
| 2 | Promoted effect of zinc–nickel bimetallic oxides supported on HZSM-5 catalysts in aromatization of methanol显示文摘Zn/ZSM-5(NZ2) and Zn/Ni/ZSM-5(NZ3) as the catalysts for methanol to aromatics(MTA) were synthesized by a simple ultrasonic impregnation. The textural and acid properties of all catalysts were characterized using XRD, HRTEM, NH_3-TPD, Py-IR, XPS, XRF and TG techniques. The XRD and HRTEM results showed that the basic zeolite structures were not affected much with the incorporation of Zn and Ni species. However, great changes have taken place in acid properties. The Py-IR and XPS results indicated that the Zn-Lewis acid sites(ZnOH^+ species), which have stronger interaction with the zeolite framework compared with ZnO species, were generated at the expense of B acid sites with the incorporation of zinc species. Moreover, the product analysis results showed that the incorporation of zinc species promoted the primary aromatization by enhancing the dehydroaromatization and suppressing the cracking and subsequent H-transfer reaction. Furthermore, the addition of Ni species well inhibited the loss of zinc species by converting partial ZnO species to ZnOH^+ species, and thus improved the aromatization activity and catalyst stability. The catalytic performance results showed that the NZ3 possess higher conversion of methanol in a longer time and lower average rate of coke formation compared with NZ2. In addition,the NZ3 also exhibited the highest yield of BTX as the reaction proceeds. | Yanming Jia Junwen Wang Kan Zhang Wei Feng Shibin Liu Chuanmin Ding Ping Liu | 2017 | Journal of Energy Chemistry2017,26,3: | 7 |
| 3 | Global transcriptome analysis for identification of interactions between coding and noncoding RNAs during human erythroid differentiation显示文摘在 erythroid 开发期间编码基因, miRNAs,和 lncRNAs 上的研究在最近的年里被执行了。然而,集中于三种 RNA 类型的集成的分析还得被做。在现在的学习,我们比较了编码基因, miRNA,和 lncRNA 表示侧面的动力学。为了在在 transcriptome 控制这些变化的红血球生成和潜在的机制探索动态变化,铺平,我们利用了定序技术从绳索血获得 transcriptome 数据的高产量造血的干细胞和下列四个 erythroid 区别阶段,以及从成熟的红血房间。结果显示 lncRNAs 为 erythroid 区别正在答应房间标记候选人。聚类分析分类差别表示基因进在 stemness 维护期间对应于动态变化的四种子类型,中间区别,并且成熟。综合分析揭示了 RNA 潜在地参予了控制血细胞成熟的那 noncoding,并且特别与到氧种类和 DNA 损坏的 heme 新陈代谢和回答联系了。这些规章的相互作用在一个全面网络,在 RNA 之间的从而推断的关联和他们的联系功能被显示。这些数据为正常红血球生成的学习提供了一个大量的资源,它将允许 erythroid 开发的进一步的调查和理解并且获得 erythroid 混乱。 | Nan Ding Jiafei Xi Yanming Li Xiaoyan Xie Jian Shi Zhaojun Zhang Yanhua Li Fang Fang Sihan Wang Wen Yue Xuetao Pei Xiangdong Fang | 2016 | Frontiers of Medicine2016,10,3: | 6 |
| 4 | Vision algorithms for fixed-wing unmanned aerial vehicle landing system显示文摘Autonomous landing has become a core technology of unmanned aerial vehicle(UAV)guidance,navigation and control | FAN YanMing DING Meng CAO YunFeng | 2017 | Science China(Technological Sciences)2017,60,3: | 6 |
| 5 | Blended-fuel based EDC combustion model and its application in heptane-ethanol fire simulation显示文摘The blended-fuel based eddy-dissipation-concept combustion model was newly developed in the FireFOAM framework, and applied to simulate30 cm×30 cm heptane-ethanol pool fire. Comparison was made of fire height,centerline temperature against experimental measurements, which shows that they match very well with each other. However, further studies are needed to examine the validation of this model in fire simulations with various scales. | Changjian Wang Jennifer Wen Yanming Ding Shouxiang Lu | 2014 | Theoretical & Applied Mechanics Letters2014,4,3: | 0 |
| 6 | Coordinately unsaturated nickel single atom electrocatalyst for efficient CO_(2)conversion显示文摘Single-atom catalysts(SACs)have shown unexpected catalytic activity due to their unique electronic structure and coordination environment.Nonetheless,the synthesis of an atomically precise low-coordination single-atom catalyst remains a grand challenge.Herein,we report a coordinately unsaturated Ni-N_(3)single-atom electrocatalyst using a metal-organic framework(MOF)derived N-C support with abundant exposed N for excellent electrochemical CO_(2)reduction.The obtained Ni-N_(3)/NC active site exhibited highly efficient CO_(2)-to-CO conversion with a Faradaic efficiency of 94.6%at the current density of 100 mA/cm^(2).In situ X-ray absorption spectroscopy(XAS)measurement suggested that the Ni atomic center with unsaturated coordination had the lower initial chemical state and higher charge transfer ability.In situ Fourier transform infrared(FT-IR)and theoretical calculation results revealed that the unsaturated catalytically active center could facilitate activation of CO_(2)and thus heighten CO_(2)electroreduction activity.These findings provided insights into the rational design of definitive coordination structure of SACs for boosting activity and selectivity. | Wei Zhang Dong Liu Tong Liu Chenglong Ding Tao Chen Yanming Li Xiaokang Liu Lan Wang Changli Li Jingfu He Tao Ding Tao Yao | 2023 | Nano Research2023,16,8: | 0 |
| 7 | Neighborhood diversity structure and neighborhood species richness effects differ across life stages in a subtropical natural secondary forest显示文摘Natural secondary forest has a strong capacity to regrow naturally and recover biodiversity rapidly on abandoned lands.However,at the neighborhood scale,which can truly reflect the facilitative or competitive interactions among individual plants,the local diversity spatial structure in secondary forest and the feedback effects of neighborhood diversity on natural regeneration remain unclear,and this may be the key to properly understand the mechanisms of natural secondary forest species diversity recovery.To this end,this study established a dynamic plot in a rehabilitated secondary forest after disturbance and conducted a comprehensive survey of 68,336 individual plants with repeated measurements at 5-year interval to assess the characteristics of neighborhood diversity structure across life history stages and link the neighborhood species richness(NSR)effect translated by species interactions at species diversity structure with individual trees recruitment/mortality in secondary forest regeneration.The results showed that,compared with tropical and temperate natural forests,a higher proportion of diversity accumulators and a lower proportion of repellers in subtropical secondary forests resulted in neighborhood diversity structures characterized by heterospecific or high-diversity patches,which are beneficial to the maintenance or restoration of biodiversity.As an important supplement to the research on the relationship between diversity and productivity,our findings show a positive diversity-survival relationship in subtropical secondary forests.Importantly,we observed that the neighborhood diversity structure exhibited a trend of accumulator-dominated to neutral-dominant changes with life stage from sapling to adult,which,in turn,determined the direction and strength of NSR effects on recruitment/mortality.Specifically,diverse local neighborhoods at a later successional stage characterized with‘neutral’species-species interactions can act as a‘welfare net’by offering favorable microhabitats for the most vulnerable recruitments or saplings,i.e.,the NSR effects that promoted individual recruitment/survival in our study.These results not only enrich our understanding of the biodiversity-productivity-survival relationship but also highlight the importance of retaining latesuccessional species of native trees in intensive forest production or in situ conservation policies. | Haonan Zhang Shuifei Chen Xiao Zheng Xiaomin Ge Yao Li Yanming Fang Peng Cui Hui Ding | 2022 | Forest Ecosystems2022,9,6: | 0 |