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| 1 | Evolutionary trace analysis of eukaryotic DNA topoisomerase I superfamily: Identification of novel antitumor drug binding site显示文摘The studies of novel inhibitors of DNA topoisomerase I (Topo I) have already be-come very promising in cancer chemotherapy. Identifying the new drug-binding residues is playing an important role in the design and optimization of Topo I inhibitors. The designed com-pounds may have novel scaffolds, thus will be helpful to overcome the toxicities of current camptothecin (CPT) drugs and may provide a solution to cross resistance with these drugs. Mul-tiple sequence alignments were performed on eukaryotic DNA topoisomerase I superfamily and thus the evolutionary tree was constructed. The Evolutionary Trace method was applied to iden-tify functionally important residues of human Topo I. It has been demonstrated that class-specific hydrophobic residues Ala351, Met428, Pro431 are located around the 7,9-position of CPT, indi-cating suitable substitution of hydrophobic group on CPT will increase antitumor activity. The conservative residue Lys436 in the superfamily is of particular interest and new CPT derivatives designed based on this residue may greatly increase water solubility of such drugs. It has also been demonstrated that the residues Asn352 and Arg364 were conservative in the superfamily, whose mutation will render CPT resistance. As our molecular docking studies demonstrated they did not make any direct interaction with CPT, they are important drug-binding site residues for future design of novel non-camptothecin lead compounds. This work provided a strong basis for the design and synthesis of novel highly potent CPT derivatives and virtual screening for novel lead compounds. | SONG Yunlong QI Yunpeng ZHANG Wannian SHENG Chunquan ZHANG Min YAO Jianzhong YU Jianxin MIAO Zhenyuan ZHOU Youjun ZHU Ju L(U) Jiaguo | 2005 | Science China(Life Sciences)2005，48，4： | 5 |
| 2 | Cryo-EM structure of human heptameric Pannexin 1 channel显示文摘Dear Editor,Cellular communication is crucial during basic development and in the maintenance of homeostasis in adult organisms,and such communication involves the connexin and pannexin(PANX)families of large-pore channels.The PANX family was identified in 20001 and consists of PANX1,PANX2,and PANX3.2 Among the three subtypes,the most studied is PANX1 because of its potential effects on multiple physiological and pathological functions,3 including microbial infection,cancer progression,ischemia,and neurological disorders.Very recently,we also identified mutations in PANX1 causing familial female infertility characterized by oocyte death.4 PANX1 is a major ATP release and nucleotide permeation channel,which is N-glycosylated and forms three species,GLYO,GLY1,and GLY2.5 Cleavage of the C-terminus by Caspase 3/7 activates the channel and causes the release of ATP and UTP,which functions as a 'find-me'signal during apoptosis. | Ronggui Qu Lili Dong Jilin Zhang Xuekui Y u Lei Wang Shujia Zhu | 2020 | Cell Research2020，30，5： | 4 |
| 3 | Critical function of DNA methyltransferase 1 in tomato development and regulation of the DNA methylome and transcriptome显示文摘DNA methylation confers epigenetic regulation on gene expression and thereby on various biological processes.Tomato has emerged as an excellent system to study the function of DNA methylation in plant development.To date,regulation and function of DNA methylation maintenance remains unclear in tomato plants.Here,we report the critical function of tomato(Solanum lycopersicum)Methyltransferase 1(Sl MET1)in plant development and DNA methylome and transcriptome regulation.Using CRISPR-Cas9 gene editing,we generated slmet1 mutants and observed severe developmental defects with a frame-shift mutation,including small and curly leaves,defective inflorescence,and parthenocarpy.In leaf tissues,mutations in Sl MET1 caused CG hypomethylation and CHH hypermethylationon a whole-genome scale,leading to a disturbed transcriptome including ectopic expression of many RIN target genes such as ACC2 in leaf tissues,which are normally expressed in fruits.Neither the CG hypomethylation nor CHH hypermethylation in the slmet1 mutants is related to tissue culture.Meanwhile,tissue culture induces non-CG hypomethylation,which occurs more frequently at gene regions than at TE regions.Our results depict Sl MET1-and tissue culture-dependent tomato DNA methylomes,and that Sl MET1 is required for maintaining a normal transcriptome and normal development of tomato. | Yu Yang Kai Tang Tatsiana U Datsenka Wenshan Liu Suhui Lv Zhaobo Lang Xingang Wang Jinghui Gao Wei Wang Wenfeng Nie Zhaoqing Chu Heng Zhang Avtar K HANDa Jian-Kang Zhu Huiming Zhang | 2019 | Journal of Integrative Plant Biology2019，61，12： | 3 |
| 4 | Increased circulating level of interleukin-6 and CD8+T cell exhaustion are associated with progression of COVID-19显示文摘Background: Coronavirus disease 2019(COVID-19)is pandemic.It is critical to identify COVID-19 patients who are most likely to develop a severe disease.This study was designed to determine the clinical and epidemiological features of COVID-19 patients associated with the development of pneumonia and factors associated with disease progression.Methods:: Seventy consecutive patients with etiologically confirmed COVID-19 admitted to PLA General Hospital in Beijing,China from December 27,2019 to March 12,2020 were enrolled in this study and followed-up to March 16,2020.Differences in clinical and laboratory findings between COVID-19 patients with pneumonia and those without were determined by theχ2 test or the Fisher exact test(categorical variables)and independent group t test or Mann–Whitney U test(continuous variables).The Cox proportional hazard model and Generalized Estimating Equations were applied to evaluate factors that predicted the progression of COVID-19.Results: The mean incubation was 8.67(95%confidence interval,6.78–10.56)days.Mean duration from the first test severe acute respiratory syndrome coronavirus 2-positive to conversion was 11.38(9.86–12.90)days.Compared to pneumonia-free patients,pneumonia patients were 16.5 years older and had higher frequencies of having hypertension,fever,and cough and higher circulating levels of neutrophil proportion,interleukin-6,low count(<190/µl)of CD8+T cells,and neutrophil/lymphocyte ratio.Thirteen patients deteriorated during hospitalization.Cox regression analysis indicated that older age and higher serum levels of interleukin-6,C-reactive protein,procalcitonin,and lactate at admission significantly predicted the progression of COVID-19.During hospitalization,circulating counts of T lymphocytes,CD4+T cells,and CD8+T cells were lower,whereas neutrophil proportion,neutrophil/lymphocyte ratio,and the circulating levels of interleukin-6,C-reactive protein,and procalcitonin were higher,in pneumonia patients than in pneumonia-free patients.CD8+lymphocyte count in pneumonia patients did not recover when discharged.Conclusions: Older age and higher levels of C-reactive protein,procalcitionin,interleukin-6,and lactate might predict COVID-19 progression.T lymphocyte,especially CD8+cell-mediated immunity is critical in recovery of COVID-19.This study may help in predicting disease progression and designing immunotherapy for COVID-19. | Peng-Hui Yang Yi-Bo Ding Zhe Xu Rui Pu Ping U Jin Yan Ji-Luo Liu Fan-Ping Meng Lei Huang Lei Shi Tian-Jun Jiang En-Qiang Qin Min Zhao Da-Wei Zhang Peng Zhao Ling-Xiang Yu Zhao-Hai Wang Zhi-Xian Hong Zhao-Hui Xiao Qing Xi De-Xi Zhao Peng Yu Cai-Zhong Zhu Zhu Chen Shao-Geng Zhang Jun-Sheng Ji Fu-Sheng Wang Guang-Wen Cao | 2020 | Infectious Diseases of Poverty2020，9，6： | 3 |
| 5 | Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite显示文摘As China’s first X-ray astronomical satellite, the Hard X-ray Modulation Telescope (HXMT), which was dubbed as Insight-HXMT after the launch on June 15, 2017, is a wide-band(1-250 ke V) slat-collimator-based X-ray astronomy satellite with the capability of all-sky monitoring in 0.2-3 Me V. It was designed to perform pointing, scanning and gamma-ray burst(GRB)observations and, based on the Direct Demodulation Method (DDM), the image of the scanned sky region can be reconstructed.Here we give an overview of the mission and its progresses, including payload, core sciences, ground calibration/facility, ground segment, data archive, software, in-orbit performance, calibration, background model, observations and some preliminary results. | Shuang-Nan Zhang TiPei Li FangJun Lu LiMing Song YuPeng X u CongZhan Liu Yong Chen XueLei Cao QingCui Bu Zhi Chang Gang Chen Li Chen TianXiang Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong Yuan Yuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan Can Gungor ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge Ou JinLu Qu Na Sai RenCheng Shang GuoHong Shen Liang Sun Ying Tan Lian Tao YouLi Tuo Chen Wang ChunQin Wang GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BaiYang Wu BoBing Wu Mei Wu GuangCheng Xiao ShaoLin Xiong LinLi Yan JiaWei Yang Sheng Yang YanJi Yang QiBin Yi Bin Yuan AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang ShenYi Zhangs Shu Zhang Tong Zhang WanChang Zhang Wei Zhang WenZhao Zhang Yi Zhang YiFei Zhang YongJie Zhang Yue Zhang Zhao Zhang Zhi Zhang ZiLiang Zhang HaiSheng Zhao XiaoFan Zhao ShiJie Zheng JianFeng Zhou YuXuan Zhu Yue Zhu RenLin Zhuang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，4： | 2 |
| 6 | X-ray diffraction studies of the structure of nanometer-sized crystalline materials显示文摘 | Zhu X Briinger R Herr U | 1987 | Physical Review1987，35，17： | 1 |
| 7 | Xylem water transport: is the available evidence consistent with the cohesion theory显示文摘 | ZIMMERMANN U MEINZER F C BENKERT R ZHU J J SCHNEIDER H GOLDSTEIN G KUCHENBROD E HAASE A | 1994 | Plant Cell Environ1994，17，： | 1 |
| 8 | Involvement of apoptosis-inducing factor in neuronal death after hypoxia-ischemia in the neonatal rat brain显示文摘 | Zhu C Qiu L Wang X Hallin U Cande C Kroemer G | 2003 | J Neurochem2003，86，2： | 1 |
| 9 | Inhibitory effect of osthole on alcohol-induced fatty liver in mice显示文摘 | Sun F Xie ML Zhu U | 2009 | Dig Liver Dis2009，41，： | 1 |
| 10 | Prevalence of amblyopia and strabismus in a population of 7th-grade junior high school students in Central China: the Anyang Childhood Eye Study ( ACES)显示文摘 | Fu J u SM Liu LR u JL Li SY Zhu BD | 2014 | Ophthalmic Epidemiol2014，21，3： | 1 |
| 11 | X-ray diffraction studies of the structure of nanometer-sized crystalline marerials显示文摘 | Zhu X Briinger R Herr U | 1987 | Physical Review1987，35，17： | 1 |
| 12 | Enrichment of vitronectinand fibronectin-like proteins in NaCl-adapted plant cells and evidence for their ininvolvement in plasma membranecell wall adhesion显示文摘 | Zhu J Shi J Singh U | 1993 | Plant J1993，3，： | 1 |
| 13 | Long-term xylem pressure measurements in the liana Tetrastigma voinerianum by means of the xylem pressure probe显示文摘 | BENKERT R ZHU J J ZIMMERMANN G TURK R BENTRUP FW ZIMMERMANN U | 1995 | Planta1995，196，： | 1 |
| 14 | Uniformity analysis at MEA and stack levels for a Nexa PEM fuel cell system显示文摘 | Zhu W H Payne R U Cahela D R | 2004 | Journal of Power Sources2004，128，2： | 1 |
| 15 | Vesicles generated during storage of red cells are rich in the lipid raft ma&er stomatin 显示文摘 | Salzer U Zhu R Luten M | 2008 | Transfusion2008，48，： | 1 |
| 16 | Production of hepatocyte growth factor during acute myocardial infarction显示文摘 | Zhu Y Hojo Y Ikeda U | 2000 | Heart2000，83，4： | 1 |
| 17 | Diurnal changes in xylem pressure and meso- phyll cell turgor pressure of the liana Tetrastigma voinierianum: the role of cell turgor in long-distance water transport显示文摘 | THtJRMER F ZHU J J GIERLINGER N SCHNEIDER H BENKERT R GESSNER P HERRMANN B BENTRUP F W ZIMMERMANN U | 1999 | Protoplasma1999，206，： | 1 |
| 18 | Mitochondria and ischemic reperfusion damage in the adult and in the developing brain 显示文摘 | Blomgren K Zhu C Hallin U | 2003 | Biochem Biophys Res Commun2003，304，3： | 1 |
| 19 | Reductions of carboxylic acids and esters with NaBH4 in diglyme at 162(]显示文摘 | Zhu H J Pittman Jr C U | 2003 | Synthetic Communications2003，33，10： | 1 |
| 20 | EGFR signals downregulate tumor suppressors miR - 143 and miR - 145 in Wes- tern diet - promoted murine colon cancer: role of G1 regulators 显示文摘 | ZHU H DOUGHERTY U ROBINSON V | 2011 | nol Cancer Res2011，9，7： | 1 |
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