For humans to grow and to replace and heal damaged tissues, the body's cells must continually reproduce, a process known as "cell division," by which one cell becomes two, two become four, and so on. A key question of biomedical ...
Biotechnology
Dec 20, 2012
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One can often begin to understand a protein's function by identifying its accomplices in the cell. Accordingly, scientists have developed diverse biochemical assays that essentially allow them to go 'fishing' for interaction ...
Cell & Microbiology
Oct 10, 2012
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(Phys.org)—Scientists from the Friedrich Miescher Institute for Biomedical Research have elucidated the histone modifications that lead to the sequestration of silent genes at the nuclear periphery. In a study published ...
Cell & Microbiology
Aug 31, 2012
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(Phys.org) -- This image from the Hubble Space Telescope shows planetary nebula NGC 7026. Located just beyond the tip of the tail of the constellation of Cygnus (The Swan), this butterfly-shaped cloud of glowing gas and dust ...
Astronomy
Jun 5, 2012
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The movement of genetic materials, such as RNA and ribosomes, from the nucleus to the cytoplasm is a critical component in a cell's ability to make the proteins necessary for essential biological functions. Until now, it ...
Cell & Microbiology
May 10, 2012
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The secret to preventing or reversing premature aging may be found in a DNA “off switch” that humans share with common yeast, according to new research from the University of Toronto.
Biotechnology
Jun 15, 2011
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A team led by Naoko Imamoto of the RIKEN Advanced Science Institute in Wako, Japan, has uncovered processes governing the formation of functionally important structures called nuclear pore complexes (NPCs) in dividing human ...
Cell & Microbiology
Oct 18, 2010
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(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the cell precisely ...
Cell & Microbiology
Nov 13, 2009
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(PhysOrg.com) -- After being recognized and initially processed by the cellular machinery, the broken chromosome is extensively scanned for homology and the break itself is later tethered to the nuclear envelope. Thus the ...
Feb 13, 2009
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A large fraction of the transcription factor Oct-1 is associated with the inner nuclear envelope, but how and why it is retained there was unknown.
Jan 12, 2009
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