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  • 1
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    CHD1 motor protein is required for deposition of histone variant H3.3 into chromatin in vivo (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-25
    Description: The organization of chromatin affects all aspects of nuclear DNA metabolism in eukaryotes. H3.3 is an evolutionarily conserved histone variant and a key substrate for replication-independent chromatin assembly. Elimination of chromatin remodeling factor CHD1 in Drosophila embryos abolishes incorporation of H3.3 into the male pronucleus, renders the paternal genome unable to participate in zygotic mitoses, and leads to the development of haploid embryos. Furthermore, CHD1, but not ISWI, interacts with HIRA in cytoplasmic extracts. Our findings establish CHD1 as a major factor in replacement histone metabolism in the nucleus and reveal a critical role for CHD1 in the earliest developmental instances of genome-scale, replication-independent nucleosome assembly. Furthermore, our results point to the general requirement of adenosine triphosphate (ATP)-utilizing motor proteins for histone deposition in vivo.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3014568/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3014568/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Konev, Alexander Y -- Tribus, Martin -- Park, Sung Yeon -- Podhraski, Valerie -- Lim, Chin Yan -- Emelyanov, Alexander V -- Vershilova, Elena -- Pirrotta, Vincenzo -- Kadonaga, James T -- Lusser, Alexandra -- Fyodorov, Dmitry V -- GM58272/GM/NIGMS NIH HHS/ -- GM74233/GM/NIGMS NIH HHS/ -- R01 GM074233/GM/NIGMS NIH HHS/ -- Y 275/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2007 Aug 24;317(5841):1087-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17717186" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Cell Cycle Proteins/metabolism ; Chromatin/*metabolism ; *Chromatin Assembly and Disassembly ; DNA-Binding Proteins/genetics/*metabolism ; Drosophila/embryology/genetics/metabolism/*physiology ; Drosophila Proteins/genetics/*metabolism ; Embryo, Nonmammalian/physiology ; Embryonic Development ; Female ; Haploidy ; Histone Chaperones ; Histones/*metabolism ; Male ; Mutation ; Nucleosomes/metabolism ; Protamines/metabolism ; Spermatozoa/physiology ; Transcription Factors/genetics/*metabolism ; Transgenes
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Identification of maize histone deacetylase HD2 as an acidic nucleolar phosphoprotein (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: The steady state of histone acetylation is established and maintained by multiple histone acetyltransferases and deacetylases, and this steady state affects chromatin structure and function. The identification of a maize complementary DNA encoding the chromatin-bound deacetylase HD2 is reported. This protein was not homologous to the yeast RPD3 transcriptional regulator. It was expressed throughout embryo germination in correlation with the proliferative activity of cells. Antibodies against recombinant HD2-p39 immunoprecipitated the native enzyme complex, which was composed of phosphorylated p39 subunits. Immunofluorescence microscopy and sequence homologies suggested nucleolar localization. HD2 is an acidic nucleolar phosphoprotein that might regulate ribosomal chromatin structure and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lusser, A -- Brosch, G -- Loidl, A -- Haas, H -- Loidl, P -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):88-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, University of Innsbruck Medical School, Fritz-Pregl-Str. 3, A-6020 Innsbruck, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204905" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Amino Acid Sequence ; Base Sequence ; Cell Nucleolus/*enzymology ; Chromatin/metabolism ; Cloning, Molecular ; DNA, Complementary ; Germination ; Histone Deacetylases/*chemistry/genetics/isolation & purification/*metabolism ; Histones/metabolism ; Hydrogen-Ion Concentration ; Molecular Sequence Data ; Phosphoproteins/*chemistry/metabolism ; Phosphorylation ; RNA, Messenger/genetics/metabolism ; RNA, Plant/genetics/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Seeds/enzymology ; Zea mays/embryology/*enzymology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    meRanTK: methylated RNA analysis ToolKit (2016)
    Oxford University Press
    Details
    Publication Date: 2016-02-27
    Description: : The significance and function of posttranscriptional cytosine methylation in poly(A)RNA attracts great interest but is still poorly understood. High-throughput sequencing of RNA treated with bisulfite (RNA-BSseq) or subjected to enrichment techniques like Aza-IP or miCLIP enables transcriptome wide studies of this particular modification at single base pair resolution. However, to date, there are no specialized software tools available for the analysis of RNA-BSseq or Aza-IP data. Therefore, we developed meRanTK, the first publicly available tool kit which addresses the special demands of high-throughput RNA cytosine methylation data analysis. It provides fast and easy to use splice-aware bisulfite sequencing read mapping, comprehensive methylation calling and identification of differentially methylated cytosines by statistical analysis of single- and multi-replicate experiments. Application of meRanTK to RNA-BSseq or Aza-IP data produces accurate results in standard compliant formats. Availability and Implementation: meRanTK, source code and test data are released under the GNU GPLv3+ license and are available at http://icbi.at/software/meRanTK/ . Contact: dietmar.rieder@i-med.ac.at
    Print ISSN: 1367-4803
    Electronic ISSN: 1460-2059
    Topics: Biology , Computer Science , Medicine
    Published by Oxford University Press
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  • 4
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    A novel role for the histone acetyltransferase Hat1 in the CENP-A/CID assembly pathway in Drosophila melanogaster (2016)
    Oxford University Press
    Details
    Publication Date: 2016-03-19
    Description: The incorporation of CENP-A into centromeric chromatin is an essential prerequisite for kinetochore formation. Yet, the molecular mechanisms governing this process are surprisingly divergent in different organisms. While CENP-A loading mechanisms have been studied in some detail in mammals, there are still large gaps to our understanding of CENP-A/Cid loading pathways in Drosophila . Here, we report on the characterization and delineation of at least three different CENP-A preloading complexes in Drosophila . Two complexes contain the CENP-A chaperones CAL1, FACT and/or Caf1/Rbap48. Notably, we identified a novel complex consisting of the histone acetyltransferase Hat1, Caf1 and CENP-A/H4. We show that Hat1 is required for proper CENP-A loading into chromatin, since knock-down in S2 cells leads to reduced incorporation of newly synthesized CENP-A. In addition, we demonstrate that CENP-A/Cid interacts with the HAT1 complex via an N-terminal region, which is acetylated in cytoplasmic but not in nuclear CENP-A. Since Hat1 is not responsible for acetylation of CENP-A/Cid, these results suggest a histone acetyltransferase activity-independent escort function for Hat1. Thus, our results point toward intriguing analogies between the complex processing pathways of newly synthesized CENP-A and canonical histones.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 5
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    Analysis of the histone acetyltransferase B complex of maize embryos (1999)
    Oxford University Press
    Details
    Publication Date: 1999-11-01
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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