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Heterochromatin Current Events

Heterochromatin Current Events - the latest Heterochromatin news stories, articles, research and discoveries.
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Making and breaking heterochromatin
To fit the two-meter long DNA molecule into a cell nucleus that is only a few thousandths of a millimetre in size, long sections of the DNA must be strongly compacted. View News Article (2012-09-26)

CSHL team solves a protein complex's molecular structure to explain its role in gene silencing
A cell's genome maintains its integrity by organizing some of its regions into a super-compressed form of DNA called heterochromatin. View News Article (2011-11-14)

Study reveals new role for RNA interference during chromosomal replication
At the same time that a cell's DNA gets duplicated, a third of it gets super-compacted into repetitive clumps called heterochromatin.  View News Article (2011-10-17)

St. Jude study yields secrets of chromosome movement
Investigators at St. Jude Children's Research Hospital have used the lowly yeast to gain insights into how a dividing human cell ensures that an identical set of chromosomes gets passed on to each new daughter cell. View News Article (2007-06-18)

How yeast chromosomes avoid the bad breaks
The human genome is peppered with repeated DNA elements that can vary from a few to thousands of consecutive copies of the same sequence. View News Article (2011-08-08)

Nuclear membrane repairs the 'dark matter' of DNA
Scientists have found a new function of the nuclear membrane, the envelope that encases and protects DNA in the nucleus of a cell - it fixes potentially fatal breaks in DNA strands. View News Article (2015-10-30)

Researchers discover mechanism that prevents two species from reproducing
Cornell researchers have discovered a genetic mechanism in fruit flies that prevents two closely related species from reproducing, a finding that offers clues to how species evolve. View News Article (2009-10-27)

Roles of DNA packaging protein revealed by Einstein scientists
Scientists at Albert Einstein College of Medicine of Yeshiva University have found that a class of chromatin proteins is crucial for maintaining the structure and function of chromosomes and the normal development of eukaryotic organisms. View News Article (2009-02-13)

CSHL researchers explain process by which cells 'hide' potentially dangerous DNA segments
The DNA in the 23 pairs of chromosomes in each of the billions of cells of the human body is so tightly packed that it would measure six feet in length if stretched end to end. A genome of this size can squeeze into a cell's tiny nucleus because it is compressed into highly condensed chromatin fibers by proteins called histones. View News Article (2009-04-10)

Aging erodes genetic control, but it's flexible
In yeast at least, the aging process appears to reduce an organism's ability to silence certain genes that need to be silenced. View News Article (2013-11-21)

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