叶克穷 - 中国科学院大学

个人简介

招生专业 071010-生物化学与分子生物学招生方向 RNA结构生物学,晶体和电镜结构学历 2000年中国科学院生物物理研究所博士 1995年浙江大学生物系学士工作经历 2014年- 中国科学院生物物理所研究员 2011-2014年北京生命科学研究所高级研究员 2005-2011年北京生命科学研究所研究员 2001-2005年美国纽约纪念斯隆凯特琳癌症研究所，Dinshaw Patel实验室博士后教授课程结构生物学技术

研究领域

RNA分子在蛋白质翻译、RNA修饰和加工、基因调控等多种过程中发挥着重要的作用。我们实验室的主要兴趣集中在和RNA生物学相关的结构研究，包括真核生物核糖体的组装、RNA修饰和RNA沉默等领域，主要使用X射线晶体学、电镜、核磁共振、生化、酵母遗传操作等技术手段。 1. 真核生物核糖体组装蛋白质工厂——核糖体是由RNA和蛋白质组成的超级复合物，它在体内的组装需要经历高度复杂的过程。在出芽酵母Saccharomyces cerevisiae中，有200多个保守的蛋白质组装因子和大量非编码RNA参与核糖体的组装。我们以出芽酵母为模式生物，研究核糖体体内组装的分子过程、组装因子的结构和功能以及核糖体前体的结构。 2. H/ACA和C/D RNA蛋白质复合物 H/ACA 和 C/D RNA是两大类古老的非编码RNA，它们和蛋白质结合形成多元复合物，主要在RNA的假尿嘧啶合成和2'-O甲基化修饰中，发挥结合特异底物的向导作用。我们研究H/ACA和C/D 两类RNA蛋白质复合物的空间结构、生化机制和生物发生过程。 3. RNA沉默多种小RNA(siRNA, miRNA, crRNA)作为特异性决定因子在真核和原核生物中控制着基因的沉默。我们研究这些小RNA的加工、调控机制和效应复合物。

近期论文

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1. Shukun Luo#, Xiaoran Xin#, Li-Lin Du*, Keqiong Ye*, Yi Wei (2015) Dimerization mediated by a divergent FHA domain is essential for the DNA damage and spindle functions of fission yeast Mdb1. J. Biol. Chem. 290:21054-66 2. Xing Zhu and Keqiong Ye* (2015) Cmr4 is the slicer in the RNA-targeting Cmr CRISPR complex. Nucleic Acids Res. 43(2):1257-67 doi:10.1093/nar/gku1355, Dec 24, 2014 3. Sanduo Zheng, Raffaella Villa, Jia Wang, Yingang Feng, Jinfeng Wang, Peter B. Becker and Keqiong Ye* (2014) Structural basis of X chromosome DNA recognition by the MSL2 CXC domain during Drosophila dosage compensation. Genes & Development 28: 2652-2662 doi:10.1101/gad.250936.114, Dec 1, 2014 4. Sanduo Zheng#, Pengfei Lan#, Ximing Liu and Keqiong Ye* (2014) Interaction of ribosome assembly factors Krr1 and Faf1 is essential for formation of small ribosomal subunit in yeast. J. Biol. Chem. 289:22692-22703. doi:10.1074/jbc.M114.584490, July 2, 2014 5. Sanduo Zheng and Keqiong Ye* (2014) Purification, crystallization and preliminary X-ray diffraction analysis of Imp3 in complex with an Mpp10 peptide involved in yeast ribosome biogenesis. Acta Cryst. F90, 918-921 6. Dejian Zhou, Keqiong Ye* (2014) CLIP techniques in studying protein-RNA interactions. Chinese Bulletin of Life Sciences 26(3) 207-212 (review in Chinese) 7. Cheng Zhang, Jinzhong Lin, Weixiao Liu, Xining Chen, Rongchang Chen and Keqiong Ye* (2014) Structure of Utp21 tandem WD domain provides insight into the organization of the UTPB complex involved in ribosome synthesis. PLoS ONE 9(1): e86540. doi:10.1371/journal.pone.0086540 Jan 21, 2014. 8. Jing Lu, Mengyi Sun and Keqiong Ye* (2013) Structural and functional analysis of Utp23, a yeast ribosome synthesis factor with degenerate PIN domain. RNA. 19:1815-24. doi:10.1261/rna.040808.113 Dec 1, 2013 9. Jinzhong Lin#, Jing Lu#, Yingang Feng, Mengyi Sun and Keqiong Ye* (2013) An RNA-binding complex involved in ribosome biogenesis contains a protein with homology to tRNA CCA-adding enzyme. PLoS Biol 11(10): e1001669. doi:1001610.1001371/journal.pbio.1001669. 10. Jie Zheng, Lei Zhang, Junbin Zhang, Xiaoxia Wang, Keqiong Ye, Zhen Xi*, Quan Du*, Zicai Liang* (2013) Single modification at position 14 of siRNA strand abolishes its gene-silencing activity by decreasing both RISC loading and target degradation. FASEB J. 10:4017-26. doi: 10.1096/fj.13-228668. Jun 14, 2013 11. Yue-He Ding#, Yun-Guang Du#, Shukun Luo#, Yu-Xin Li, Tie-Mei Li, Sawako Yoshina, Xing Wang, Karsten Klage, Shohei Mitani, Keqiong Ye*, Meng-Qiu Dong* (2013) Characterization of PUD-1 and PUD-2, Two Proteins Up-Regulated in a Long-Lived daf-2 Mutant. PLoS ONE 8(6):e67158. doi: 10.1371/journal.pone.0067158. Jun 14, 2013 12. Liman Zhang, Jinzhong Lin and Keqiong Ye* (2013) Structural and functional analysis of the U3 snoRNA binding protein Rrp9. RNA 19:701-711. doi: 10.1261/rna.037580.112, Mar. 18, 2013 13. Sanduo Zheng#, Jia Wang#, Yingang Feng#,*, Jinfeng Wang and Keqiong Ye* (2012) Solution structure of MSL2 CXC domain reveals an unusual Zn3Cys9 cluster and similarity to pre-SET domains of histone lysine methyltransferases. PLoS ONE, 7(9):e45437. doi: 10.1371/journal.pone.0045437 14. Xinxing Yang, Jinqi Duan, Shuang Li, Peng Wang, Shoucai Ma, Keqiong Ye* and Xin Sheng Zhao* (2012) Kinetic and thermodynamic characterization of the reaction pathway of box H/ACA RNA-guided pseudouridine formation. Nucleic Acids Res. 40:10925-36. doi: 10.1093/nar/gks882 15. Bing Yang#, Yan-Jie Wu#, Ming Zhu#, Sheng-Bo Fan, Jinzhong Lin, Kun Zhang, Shuang Li, Hao Chi, Yu-Xin Li, Hai-Feng Chen, Shu-Kun Luo, Yue-He Ding, Le-Heng Wang, Zhiqi Hao, Li-Yun Xiu, She Chen, Keqiong Ye, Si-Min He* and Meng-Qiu Dong* (2012) Identification of cross-linked peptides from complex samples. Nature Method. 9:904-906. doi:10.1038/nmeth.2099 16. Xing Zhu and Keqiong Ye* (2012) Crystal structure of Cmr2 suggests a nucleotide cyclase-related enzyme in type III CRISPR-Cas systems. FEBS Letters 586:939-945. doi:10.1016/j.febslet.2012.02.036. 17. Wei Zhang, Yang Zhao, Yan Guo and Keqiong Ye* (2012) Plant actin-binding protein SCAB1 is dimeric actin cross-linker with atypical pleckstrin homology domain. J. Biol. Chem. 287: 11981-11990. doi:10.1074/jbc.M112.341347. 18. Shukun Luo and Keqiong Ye* (2012) Dimerization, but not phosphothreonine binding, is conserved between the forkhead-associated domains of Drosophila MU2 and human MDC1. FEBS Letters. 586:344-349. doi:10.1016/j.febslet.2012.01.023. 19. Jinping Liu#, Shukun Luo#, Hongchang Zhao, Ji Liao, Jing Li, Chunying Yang, Bo Xu, David F. Stern, Xingzhi Xu* and Keqiong Ye* (2012) Structural mechanism of the phosphorylation-dependent dimerization of the MDC1 forkhead-associated domain. Nucleic Acids Res. 40:3898-912. doi:10.1093/nar/gkr1296 20. Shuang Li#, Jingqi Duan#, Dandan Li, Shoucai Ma and Keqiong Ye* (2011) Structure of the Shq1-Cbf5-Nop10-Gar1 complex and implications for H/ACA RNP biogenesis and dyskeratosis congenita. EMBO J. 30:5010-5020. doi:10.1038/emboj.2011.427 21. Shuang Li, Jingqi Duan, Dandan Li, Bing Yang, Mengqiu Dong and Keqiong Ye* (2011) Reconstitution and structural analysis of the yeast box H/ACA RNA-guided pseudouridine synthase. Genes Dev 25:2409-2421. doi:10.1101/gad.175299.111 22. Jinzhong Lin#, Liman Zhang#, Shaomei Lai, Keqiong Ye* (2011) Structure and molecular evolution of CDGSH iron-sulfur domains. PLoS ONE, 6(9): e24790. doi:10.1371/journal.pone.0024790 23. Yang Zhao, Shuangshuang Zhao, Tonglin Mao, Xiaolu Qu, Wanhong Cao, Li Zhang, Wei Zhang, Liu He, Sidi Li, Sulin Ren, Jinfeng Zhao, Guoli Zhu, Shanjin Huang, Keqiong Ye, Ming Yuan, and Yan Guo. (2011) The Plant-Specific Actin Binding Protein SCAB1 Stabilizes Actin Filaments and Regulates Stomatal Movement in Arabidopsis. Plant Cell. 23:2314-2330. doi:10.1105/tpc.111.086546 24. Bihong Guo, Jinzhong Lin and Keqiong Ye* (2011) Structure of the autocatalytic cysteine protease domain of potyvirus helper-component proteinase. J. Biol. Chem. 286: 21937-21943 doi:10.1074/jbc.M111.230706 25. Jinzhong Lin, Shaomei Lai, Ru Jia, Anbi Xu, Liman Zhang, Jing Lu and Keqiong Ye* (2011) Structural basis of site-specific ribose methylation by box C/D RNA protein complexes. Nature 469: 559-563. 26. Lin Huang, Ping Yin, Xing Zhu, Yi Zhang and Keqiong Ye* (2011) Crystal structure and centromere binding of the plasmid segregation protein ParB from pCXC100. Nucleic Acids Res. 39: 2954-2968 doi:10.1093/nar/gkq915 27. Wei Zhang and Keqiong Ye* (2010) Progress in structural biology of RNA silencing. Chinese Bulletin of Life Sciences 22: 608-615. (review in Chinese) 28. Mei Shen, Yi Xu, Ru Jia, Xueping Zhou and Keqiong Ye* (2010) Size-independent and non-cooperative recognition of dsRNA by the Rice stripe virus RNA silencing suppressor NS3. J Mol Biol. 404: 665-679. 29. Keqiong Ye*, Ru Jia, Jinzhong Lin, Minghua Ju, Jin Peng, Anbi Xu and Liman Zhang (2009) Structural organization of box C/D RNA-guided RNA methyltransferase. Proc Natl Acad Sci USA, 106: 13808-13813. 30. Jingqi Duan, Ling Li, Jing Lu, Wei Wang and Keqiong Ye* (2009) Structural mechanism of substrate RNA recruitment in H/ACA RNA-guided pseudouridine synthase. Mole Cell 34:427-439. 31. Keqiong Ye*. (2007) H/ACA RNAs, proteins and complexes. Curr. Opin. Struct. Biol. 17:287-292. (review) 32. Jinzhong Lin, Tao Zhou, Keqiong Ye* and Jinfeng Wang* (2007) Crystal structure of human mitoNEET reveals distinct groups of iron-sulfur proteins. Proc Natl Acad Sci USA 104:14640-14645. 33. Ling Li and Keqiong Ye* (2006) Crystal structure of an H/ACA box ribonucleoprotein particle. Nature 443: 302-307. 34. Patel, D.J., Ma, J.-B., Yuan, Y.-R., Ye, K., Pei, Y., Kuryavyi, V., Malinina, L., Meister, G. and Tuschl, T. (2006) Structural Biology of RNA Silencing and Its Functional Implications. Cold Spring Harb Symp. Quant Biol. 71:81-93. (review) 35. Ye, K. and Patel, D.J. (2005) RNA silencing suppressor p21 of Beet Yellows Virus forms an RNA-binding octameric ring structure. Structure 13:1375-1384. 36. Ma, J.#, Ye, K#. and Patel, D.J. (2004) Structural mechanism of overhang-specific small interfering RNA recognition of the PAZ domain. Nature 429:318-322. 37. Ye, K., Malinina, L. and Patel, D.J. (2003) Recognition of small interfering RNA by a viral suppressor of RNA silencing. Nature 426:874-878. 38. Yao, Y, Wu, Y, Qian, C, Ye, K, Wang, J, Tang, W. (2003) NMR study of the conformational transition of cytochrome c upon the displacement of Met80 by exogenous ligand: structural and magnetic characterization of azidoferricytochrome c. Biophys Chem. 103:13-23. 39. Ye, K., Serganov, A., Hu, W., Garber, M. and Patel, D.J. (2002) Ribosome-associated factor Y adopts a fold resembling a double-stranded RNA binding domain scaffold. Eur. J. Biochem. 269:5182-5191. 40. Yao, Y., Qian, C., Ye, K., Wang, J., Bai, Z. and Tang, W. (2002) Solution structure of cyanoferricytochrome c: ligand-controlled conformational flexibility and electronic structure of the heme moiety. J. Biol. Inorg. Chem. 7:539-547. 41. Qian, C., Yao, Y., Ye, K., Wang, J., Tang, W., Wang, Y., Wang, W., Lu, J., Xie Y. and Huang, Z. (2001) Effects of charged amino-acid mutation on the solution structure of cytochrome b(5) and binding between cytochrome b(5) and cytochrome c. Protein Sci. 10:2451-2459. 42. Ye, K. and Wang, J. (2001) Self-association reaction of denatured staphylococcal nuclease fragments characterized by heteronuclear NMR. J. Mol. Biol. 307:309-322. 43. Ye, K., Jing, G. and Wang, J. (2000) Interactions between subdomains in the partially folded state of staphylococcal nuclease. Biochim. Biophys. Acta. 1479:123-134.