News tagged with nucleosome

Unspooling DNA from nucleosomal disks

The tight wrapping of genomic DNA around nucleosomes in the cell nucleus makes it unavailable for gene expression. A team of Ludwig-Maximilians-Universitaet (LMU) in Munich now describes a mechanism that allows chromosomal ...

May 23, 2013 not rated yet 0

How proteins read meta DNA code

Three-quarters of the DNA in evolved organisms is wrapped around proteins, forming the basic unit of DNA packaging called nucleosomes, like a thread around a spool. The problem lies in understanding how DNA can then be read ...

Mar 19, 2013 4.3 / 5 (3) 0

A foot in the door to genetic information

In the cell nucleus, DNA wraps around what are called histone proteins, forming regularly spaced spherical bodies called nucleosomes. Thus, large portions of the genetic material are inaccessible to the gene reading machinery. ...

Mar 07, 2012 4.3 / 5 (3) 0 | with audio podcast

How plants 'feel' the temperature rise

Plants are incredibly temperature sensitive and can perceive changes of as little as one degree Celsius. Now, a report in the January 8th issue of the journal Cell, a Cell Press publication, shows how they not only 'feel' ...

Jan 07, 2010 2.3 / 5 (3) 1 | with audio podcast