排序方式: 共有223条查询结果,搜索用时 343 毫秒
31.
A key question in the field of RNA regulation is how some exosome substrates, such as spliceosomal snRNAs and telomerase RNA, evade degradation and are processed into stable, functional RNA molecules. Typical feature of these non-coding RNAs is presence of the Sm complex at the 3′end of the mature RNA molecule. Here, we report that in Saccharomyces cerevisiae presence of intact Sm binding site is required for the exosome-mediated processing of telomerase RNA from a polyadenylated precursor into its mature form and is essential for its function in elongating telomeres. Additionally, we demonstrate that the same pathway is involved in the maturation of snRNAs. Furthermore, the insertion of an Sm binding site into an unstable RNA that is normally completely destroyed by the exosome, leads to its partial stabilization. We also show that telomerase RNA accumulates in Schizosaccharomyces pombe exosome mutants, suggesting a conserved role for the exosome in processing and degradation of telomerase RNA. In summary, our data provide important mechanistic insight into the regulation of exosome dependent RNA processing as well as telomerase RNA biogenesis. 相似文献
32.
Liang Zhao Marie-Pierre Castanié-Cornet Sneha Kumar Pierre Genevaux Manajit Hayer-Hartl F. Ulrich Hartl 《Molecular cell》2021,81(14):2914-2928.e7
- Download : Download high-res image (136KB)
- Download : Download full-size image
33.
34.
Sneha L. Koneru Heilly Salinas Gilberto E. Flores Ray L. Hong 《Molecular ecology》2016,25(24):6267-6267
35.
Agency,intimacy, and rape jokes: an ethnographic study of young women and sexual risk in Chennai
下载免费PDF全文
![点击此处可从《The journal of the Royal Anthropological Institute》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Sneha Krishnan 《The journal of the Royal Anthropological Institute》2016,22(1):67-83
In this article, I examine the circulation of jokes about sexual violence among young middle‐class women in the South Indian city of Chennai. Drawing on ethnographic research with undergraduate students in this city, I locate the rape joke in an ambivalent discourse of risk that conflates the possibility of sexual assault with the perceived ‘risks’ of women's sexual autonomy. In this context, I argue that humour about sexual violence functions as a form of lateral agency, facilitating a break from the task of reproducing middle‐class respectability. 相似文献
36.
37.
Bayesian Modeling of the Yeast SH3 Domain Interactome Predicts Spatiotemporal Dynamics of Endocytosis Proteins
下载免费PDF全文
![点击此处可从《PLoS biology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Raffi Tonikian Xiaofeng Xin Christopher P. Toret David Gfeller Christiane Landgraf Simona Panni Serena Paoluzi Luisa Castagnoli Bridget Currell Somasekar Seshagiri Haiyuan Yu Barbara Winsor Marc Vidal Mark B. Gerstein Gary D. Bader Rudolf Volkmer Gianni Cesareni David G. Drubin Philip M. Kim Sachdev S. Sidhu Charles Boone 《PLoS biology》2009,7(10)
SH3 domains are peptide recognition modules that mediate the assembly of diverse biological complexes. We scanned billions of phage-displayed peptides to map the binding specificities of the SH3 domain family in the budding yeast, Saccharomyces cerevisiae. Although most of the SH3 domains fall into the canonical classes I and II, each domain utilizes distinct features of its cognate ligands to achieve binding selectivity. Furthermore, we uncovered several SH3 domains with specificity profiles that clearly deviate from the two canonical classes. In conjunction with phage display, we used yeast two-hybrid and peptide array screening to independently identify SH3 domain binding partners. The results from the three complementary techniques were integrated using a Bayesian algorithm to generate a high-confidence yeast SH3 domain interaction map. The interaction map was enriched for proteins involved in endocytosis, revealing a set of SH3-mediated interactions that underlie formation of protein complexes essential to this biological pathway. We used the SH3 domain interaction network to predict the dynamic localization of several previously uncharacterized endocytic proteins, and our analysis suggests a novel role for the SH3 domains of Lsb3p and Lsb4p as hubs that recruit and assemble several endocytic complexes. 相似文献
38.
Rita P. Shingare Sneha V. Nanekar Prashant R. Thawale R. Karthik Asha A. Juwarkar 《International journal of phytoremediation》2017,19(10):899-908
A comparative study was carried out to evaluate the efficiency of different substrate materials along with macrophytes Typha latifolia and Cyperus rotundus in treating domestic wastewater intended for reuse in agriculture. The study was conducted over a period of 6 months with different retention times, and observations were taken twice per month. One-way analysis of variance and Tukey's Honest Significant Difference (HSD) tests were used to determine statistical significant differences between experimental columns. Treatment with T. latifolia planted in sand and mix substrate with 4-day retention time remarkably reduced the concentration of all bacterial pathogens. Log reductions observed were approximately 5.01 and 4.82 for total coliform (TC), 4.46 and 3.93 for Escherichia coli, and 5.52 and 5.48 for Shigella, respectively. Moreover, these treatments were also efficient in completely removing fecal coliform (FC) and Salmonella.Maximum parasites were removed by the treatment having sand alone as a substrate containing C. rotundus, but the difference was not significant from those planted with T. latifolia in the same substrate. The results suggest that T. latifolia aids in bacterial pathogens removal, while C. rotundus aids in parasites removal. Thus, wastewater treatment through constructed wetland having mix plantation of these species along with sand can eliminate some of the major enteric pathogens. 相似文献
39.
40.
Vidhan Jain Sanjay Basak Sneha Bhandari Praveen K. Bharti Trilok Thomas Mrigendra P. Singh Neeru Singh 《PloS one》2014,9(12)