News tagged with dna molecules

Unraveling cell division

CRG researchers shed new light on mitosis. The study published in the Journal of Cell Biology describes how Topo 2 disentangles DNA molecules and is essential for proper cell division

Sep 16, 2014
5 / 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

DNA prefers to dive head first into nanopores

(Phys.org)—In the 1960s, Nobel laureate Pierre-Gilles de Gennes postulated that someday researchers could test his theories of polymer networks by observing single molecules. Researchers at Brown observed ...

Jan 08, 2013
4.3 / 5 (3) 0 | with audio podcast

Random walks on DNA

Scientists have revealed how a bacterial enzyme has evolved an energy-efficient method to move long distances along DNA. The findings, published in Science, present further insight into the coupling of chemical and mechan ...

Apr 19, 2013
4.3 / 5 (3) 0 | with audio podcast

Tying molecules in knots

A new generation of lighter, stronger plastics could be produced using an intricate chemical process devised by scientists.

Nov 07, 2011
5 / 5 (2) 0

Researchers use light to switch on gene expression

Imagine being able to control genetic expression by flipping a light switch. Researchers at North Carolina State University are using light-activated molecules to turn gene expression on and off. Their method enables greater ...

May 10, 2012
5 / 5 (2) 0 | with audio podcast