Results 21 to 30 of about 21,822,555 (337)

Multivalent interactions essential for lentiviral integrase function

Nature Communications, 2022
The authors determined high-resolution cryo-EM structures of the lentiviral intasome — the nucleoprotein complex that inserts viral DNA into a host chromosome — and show that the architecture comprising 16 integrase subunits is critical for its function.
Allison Ballandras-Colas, Vidya Chivukula, Dominika T. Gruszka, Zelin Shan, Parmit K. Singh, Valerie E. Pye, Rebecca K. McLean, Gregory J. Bedwell, Wen Li, Andrea Nans, Nicola J. Cook, Hind J. Fadel, Eric M. Poeschla, David J. Griffiths, Javier Vargas, Ian A. Taylor, Dmitry Lyumkis, Hasan Yardimci, Alan N. Engelman, Peter Cherepanov   +19 more
doaj   +1 more source

Perturbation of chromatin structure globally affects localization and recruitment of splicing factors [PDF]

, 2012
Chromatin structure is an important factor in the functional coupling between transcription and mRNA processing, not only by regulating alternative splicing events, but also by contributing to exon recognition during constitutive splicing.
Risso, Guillermo, J, Risso Guillermo J., Lleres, D, Jernej Ule, Ignacio E. Schor (120406), Llères, David, Llères David, Pawellek, A., Ule, J., Kornblihtt Alberto R., Schor, Ignacio, E, Risso, GJ, Ule, Jernej, Lamond, Angus I.; id_orcid, Lamond, A.I., Alberto R. Kornblihtt (120413), Lamond, Angus, I, Kornblihtt, Alberto, R, Pawellek, Andrea, Andrea Pawellek, Alberto R Kornblihtt, David Llères (68840), Guillermo J. Risso (120408), Andrea Pawellek (120410), Risso, Guillermo J., Schor*, I.E., Schor, I.E., Lamond Angus I., Schor, Ignacio E., Ule, J, Ule Jernej, Risso, G.J., David Llères, Kornblihtt, A.R., Ignacio E Schor, Pawellek Andrea, Lleres*, D., Lamond, AI, Guillermo J Risso, Angus I Lamond, Kornblihtt, Alberto R., Llères, D., Schor Ignacio E., Pawellek, A, Schor, IE, Angus I. Lamond (13065), Kornblihtt, AR, Jernej Ule (115588)   +47 more
core   +1 more source

Dynamic chromatin: concerted nucleosome remodelling and acetylation [PDF]

, 2005
The flexibility of chromatin that enables translation of environmental cues into changes in genome utilisation, relies on a battery of enzymes able to modulate chromatin structure in a highly targeted and regulated manner.
Eberharter, Anton, Becker, Peter, Ferreira, Roger   +2 more
core   +1 more source

Repressive and non-repressive chromatin at native telomeres in Saccharomyces cerevisiae [PDF]

, 2009
Background In Saccharomyces cerevisiae genes that are located close to a telomere can become transcriptionally repressed by an epigenetic process known as telomere position effect.
Esther R Loney, Pryde, Fiona E., Louis Edward J, Pryde, FE, F. E. Pryde (7675940), Mellor, J., P. W. Inglis (7675937), Nicholas A Kent, J. Mellor (27566), Pryde Fiona E, Mellor Jane, Sharp Sarah, Kent Nicholas A, Loney, E. R., Sharp, Sarah, Sharp, S., Edward John Louis (7604981), Sharp, S, Kent, NA, S. Sharp (7639394), Inglis, Peter W., Louis, Edward J., Inglis, P. W., Inglis, PW, N. A. Kent (7675943), Peter W Inglis, Loney, Esther R., Kent, Nicholas A., Jane Mellor, Mellor, J, Edward J Louis, Pryde, F. E., Louis, E. J., Loney Esther R, Inglis Peter W, Loney, ER, Louis, EJ, E. R. Loney (7675934), Mellor, Jane, Fiona E Pryde, Sarah Sharp   +40 more
core   +1 more source

Interaction of the pioneer transcription factor GATA3 with nucleosomes

Nature Communications, 2020
GATA 3 functions as a pioneer factor during cellular reprogramming. Here the authors delineate nucleosome positioning relative to GATA3 binding motifs and describe the structure of a GATA3–nucleosome complex; providing insight into how a pioneer factor ...
Hiroki Tanaka, Yoshimasa Takizawa, Motoki Takaku, Daiki Kato, Yusuke Kumagawa, Sara A. Grimm, Paul A. Wade, Hitoshi Kurumizaka   +7 more
doaj   +1 more source

ChromEMT: Visualizing 3D chromatin structure and compaction n interphase and mitotic cells

Science, 2017
A close-up view inside the nucleus The nuclei of human cells contain 2 meters of genomic DNA. How does it all fit? Compaction starts with the DNA wrapping around histone octamers to form nucleosomes, but it is unclear how these further compress into ...
Horng D. Ou, Sébastien Phan, T. Deerinck, Andrea K. Thor, Mark Ellisman, Clodagh C. O'Shea   +5 more
semanticscholar   +1 more source

Proteomic interrogation of human chromatin. [PDF]

, 2011
Chromatin proteins provide a scaffold for DNA packaging and a basis for epigenetic regulation and genomic maintenance. Despite understanding its functional roles, mapping the chromatin proteome (i.e. the "Chromatome") is still a continuing process. Here,
LeRoy, Gary, Christodoulos A Floudas, Floudas, Christodoulos A., Barry M Zee, Garcia, Benjamin A., Richard C Baliban, Baliban, Richard C., Sandra B Hake, Torrente, Mariana P., Zee, Barry M., Hake, Sandra B., Christodoulos A. Floudas, Barry M. Zee, Nicolas L. Young, Mariana P. Torrente, Gary LeRoy, Richard C. Baliban, Sandra B. Hake, Benjamin A. Garcia, Nicolas L Young, Benjamin A Garcia, Young, Nicolas L., Mariana P Torrente   +22 more
core   +2 more sources

Internal modifications in the CENP-A nucleosome modulate centromeric dynamics

Epigenetics & Chromatin, 2017
Background Posttranslational modifications of core histones are correlated with changes in transcriptional status, chromatin fiber folding, and nucleosome dynamics. However, within the centromere-specific histone H3 variant CENP-A, few modifications have
Minh Bui, Mary Pitman, Arthur Nuccio, Serene Roque, Paul Gregory Donlin-Asp, Aleksandra Nita-Lazar, Garegin A. Papoian, Yamini Dalal   +7 more
doaj   +1 more source

Chromatin Structure Dynamics During the Mitosis to G1-Phase Transition

Nature, 2019
Features of higher-order chromatin organization—such as A/B compartments, topologically associating domains and chromatin loops—are temporarily disrupted during mitosis1,2.
Hao-Yue Zhang, Daniel J. Emerson, Thomas G. Gilgenast, Katelyn R. Titus, Y. Lan, Peng Huang, Di Zhang, Hongxin Wang, C. Keller, B. Giardine, R. Hardison, Jennifer E. Phillips-Cremins, G. Blobel   +12 more
semanticscholar   +1 more source

Structural basis for the inhibition of HTLV-1 integration inferred from cryo-EM deltaretroviral intasome structures

Nature Communications, 2021
Human T-cell lymphotropic virus type 1 (HTLV-1) is an oncogenic deltaretrovirus. Here the authors provide structural characterization of the binding mechanism of novel integrase strand transfer inhibitor (INSTI) candidates to limit HTLV-1 infection.
Michal S. Barski, Teresa Vanzo, Xue Zhi Zhao, Steven J. Smith, Allison Ballandras-Colas, Nora B. Cronin, Valerie E. Pye, Stephen H. Hughes, Terrence R. Burke, Peter Cherepanov, Goedele N. Maertens   +10 more
doaj   +1 more source