News tagged with cells nucleus
'Synthetic' chromosome permits repid, on-demand 'evolution' of yeast
In the quest to understand genomes -- how they're built, how they're organized and what makes them work -- a team of Johns Hopkins researchers has engineered from scratch a computer-designed yeast chromosome ...
Sep 14, 2011 |
4.3 / 5 (3) |
29
|
Scientists discover animal-like urea cycle in tiny diatoms in the ocean
Scientists have discovered that marine diatoms, tiny phytoplankton abundant in the sea, have an animal-like urea cycle, and that this cycle enables the diatoms to efficiently use carbon and nitrogen from their ...
May 11, 2011 |
5 / 5 (2) |
0
|
With new method, researchers are able to infer how tumors evolve and spread
A new method of analyzing cancerous tumors developed by scientists at Cold Spring Harbor Laboratory (CSHL) suggests that tumors may not evolve gradually, but rather in punctuated or staccato-like bursts. It is a finding ...
Mar 13, 2011 |
5 / 5 (4) |
0
|
Turning back the clock: Fasting prolongs reproductive life span
Scientific dogma has long asserted that females are born with their entire lifetime's supply of eggs, and once they're gone, they're gone. New findings by researchers at Fred Hutchinson Cancer Research Center, published online ...
Aug 27, 2009 |
4.8 / 5 (5) |
0
Physicists make crystal/liquid interface visible for first time
"Imagine you're a water molecule in a glass of ice water, and you're floating right on the boundary of the ice and the water," proposes Emory University physicist Eric Weeks. "So how do you know if you're ...
Aug 11, 2009 |
4.2 / 5 (11) |
13
Rapidly evolving gene contributes to origin of species
A gene that helped one species split into two species shows evidence of adapting much faster than other genes in the genome, raising questions about what is driving its rapid evolution.
Biology /
Feb 05, 2009 |
4.8 / 5 (11) |
1
Copy of the genetic makeup travels in a protein suitcase
Scientists from the Institute for Physical and Theoretical Chemistry at the University of Bonn have succeeded for the first time in the real time filming of the transport of an important information carrier in biological ...
May 25, 2012 |
not rated yet |
0
|
Research reveals novel transport mechanism for large ribonucleoproteins
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 ...
May 10, 2012 |
5 / 5 (1) |
0
|
Direct transfer of plant genes from chloroplasts into the cell nucleus
Chloroplasts, the plant cell's green solar power generators, were once living beings in their own right. This changed about one billion years ago, when they were swallowed up but not digested by larger cells. ...
Apr 13, 2012 |
5 / 5 (5) |
0
|
Tiny hitchhikers attack cancer cells: Gold nanostars first to deliver drug directly to cancer cell nucleus
Nanotechnology offers powerful new possibilities for targeted cancer therapies, but the design challenges are many. Northwestern University scientists now are the first to develop a simple but specialized nanoparticle that ...
Nanotechnology / Bio & Medicine
Apr 05, 2012 |
5 / 5 (4) |
0
|
Protein 'jailbreak' helps breast cancer cells live
If the fight against breast cancer were a criminal investigation, then the proteins survivin, HDAC6, CBP, and CRM1 would be among the shadier figures. In that vein, a study to be published in the March 30 ...
Mar 28, 2012 |
4.8 / 5 (4) |
0
|
To drive infections, a hijacking virus mimics a cell's signaling system
New biological research reveals how an invading virus hijacks a cell's workings by imitating a signaling marker to defeat the body's defenses. By manipulating cell signals, the virus destroys a defensive protein designed ...
Mar 26, 2012 |
not rated yet |
0
|
S.Korean, Russian scientists bid to clone mammoth
Russian and South Korean scientists have signed a deal on joint research intended to recreate a woolly mammoth, an animal which last walked the earth some 10,000 years ago.
Mar 13, 2012 |
4.3 / 5 (36) |
21
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
|
Discovery of extremely long-lived proteins may provide insight into cell aging
One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain ...
Feb 03, 2012 |
4.9 / 5 (13) |
0
|
