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4篇 您的检索式:作者名="Mengqi Lv"
    题名 作者 年代 出处 被引量
1Structural insights of phosphorylated into the recognition FUNDC1 by LC3B in mitophagy显示文摘Mengqi Lv Chongyuan Wang Fudong Li Junhui Peng Bin Wen Qingguo Gong Yunyu Shi Yajun-Tang 2017Protein & Cell2017,8,1:21
2二聚体RNA解旋酶CsdA的结构生物学研究及其C端区域的重要功能显示文摘文章简介RNA解旋酶Csd A在大肠杆菌50S核糖体的生物合成和低温下rpos的基因表达调控过程中发挥重要作用,然而一直以来人们并不清楚Csd A的结构和长片段C端区域的功能。Ling Xu Lijun Wang Junhui Peng Fudong Li Lijie Wu Beibei Zhang Mengqi Lv Jiahai Zhang Qingguo Gong Rongguang Zhang Xiaobing Zuo Zhiyong Zhang Jihui Wu 唐雅珺 施蕴渝 2018科学新闻2018,0,4:0
3Structural insights reveal the specific recognition of meiRNA by the Mei2 protein显示文摘In the fission yeast Schizosaccharomyces pombe,Mei2,an RNA-binding protein essential for entry into meiosis,regulates meiosis initiation.Mei2 binds to a specific non-coding RNA species,meiRNA,and accumulates at the sme2 gene locus,which encodes meiRNA.Previous research has shown that the Mei2 C-terminal RNA recognition motif(RRM3)physically interacts with the meiRNA 5'region in vitro and stimulates meiosis in vivo.However,the underlying mechanisms still remain elusive.We first employed an in vitro crosslinking and immunoprecipitation sequencing(CLIP-seq)assay and demonstrated a preference for U-rich motifs of meiRNA by Mei2 RRM3.We then solved the crystal structures of Mei2 RRM3 in the apo form and complex with an 8 mer RNA fragment,derived from meiRNA,as detected by in vitro CLIP-seq.These results provide structural insights into the Mei2 RRM3-meiRNA complex and reveal that Mei2 RRM3 binds specifically to the Uuc(U)sequence.Furthermore,a structure-based Mei2 mutation,Mei2F644A causes defective karyogamy,suggesting an essential role of the RNA-binding ability of Mei2 in regulating meiosis.Siyuan Shen Yanze jian Zhaokui Cai Fudong Li Mengqi Lv Yongrui Liu Jihui Wu Chuanhai Fu Yunyu Shi 2022Journal of Molecular Cell Biology2022,14,5:0
4Changing Gly311 to an acidic amino acid in the MATE family protein DTX6 enhances Arabidopsis resistance to the dihydropyridine herbicides显示文摘In modern agriculture,frequent application of herbicides may induce the evolution of resistance in plants,but the mechanisms underlying herbicide resistance remain largely unexplored.Here,we report the char-acterization of rtp 1(resistant to paraquat 1),an Arabidopsis mutant showing strong resistance to the widely used herbicides paraquat and diquat.The rtp1 mutant is semi-dominant and carries a point mutation in the gene encoding the multidrug and toxic compound extrusion family protein DTX6,leading to the change of glycine to glutamic acid at residue 311(G311E).The wild-type DTX6 with glycine 311 conferred weak para-quat and diquat resistance when overexpressed,while mutation of glycine 311 to a negatively charged amino acid(G311E or G311D)markedly increased the paraquat and diquat resistance of plants,whereas mutation to a positively charged amino acid(G311R or G311K)compromised the resistance,suggesting that the charge property of residue 311 of DTX6 is critical for the paraquat and diquat resistance of Arabi-dopsis plants.DTX6 is localized in the endomembrane trafficking system and may undergo the endosomal sorting to localize to the vacuole and plasma membrane.Treatment with the V-ATPase inhibitor ConA reduced the paraquat resistance of the rtp1 mutant.Paraquat release and uptake assays demonstrated that DTX6 is involved in both exocytosis and vacuolar sequestration of paraquat.DTX6 and DTX5 show functional redundancy as the dtx5 dtx6 double mutant but not the dtx6 single mutant plants were more sen-sitive to paraquat and diquat than the wild-type plants.Collectively,our work reveals a potential mecha-nism for the evolution of herbicide resistance in weeds and provides a promising gene for the manipulation of plant herbicide resistance.Zeyu Lv Mingming Zhao Wenjing Wang Qi Wang Mengqi Huang Chaoqun Li Qichao Lian Jinqiu Xia Ji Qi Chengbin Xiang Huiru Tang Xiaochun Ge 2021Molecular Plant2021,14,12:0
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