News tagged with polymerase
Gene transcribing machine takes halting, backsliding trip along the DNA
Jul 30, 2009 |
5 / 5 (4) |
1
(PhysOrg.com) -- The body's nanomachines that read our genes don't run as smoothly as previously thought, according to a new study by University of California, Berkeley, scientists.
'Sloppier copier' surprisingly efficient
Jul 15, 2009 |
4.3 / 5 (4) |
3
The "sloppier copier" discovered by USC biologists is also the best sixth man in the DNA repair game, an article in the journal Nature shows.
A Real Dracula Story
Aug 27, 2009 |
4.8 / 5 (4) |
0
Research, discovery and publishing in a prestigious journal are not as easy as 1-2-3. However, an outstanding mentor and a well-equipped lab made this feat possible for doctoral student Fei Jiang.
Monitoring Cancer Cell Changes With Quantum Dots
Nanotechnology / Bio & Medicine
Jul 23, 2009 |
5 / 5 (1) |
0
One of the earliest events that changes a normal cell into a malignant one is known as deoxyribonucleic acid (DNA) hypermethylation, a biochemical alteration that inactivates critical tumor-suppressor genes. A team of investigators ...
One secret to how TB sticks with you
Jul 09, 2009 |
3 / 5 (2) |
0
Mycobacterium tuberculosis is arguably the world's most successful infectious agent because it knows how to avoid elimination by slowing its own growth to a crawl. Now, a report in the July 10 issue of the journal Cell, ...
Faster, more cost-effective DNA test for crime scenes, disease diagnosis
Chemistry / Analytical Chemistry
Jul 08, 2009 |
4 / 5 (1) |
0
Scientists in Japan are reporting development of a faster, less expensive version of the fabled polymerase chain reaction (PCR) a DNA test widely used in criminal investigations, disease diagnosis, biological ...
Molecular typesetting -- proofreading without a proofreader
Jun 23, 2009 |
5 / 5 (1) |
0
Researchers at the Universities of Leeds and Bristol (UK) have developed a model of how errors are corrected whilst proteins are being built.
New piece found in the puzzle of epigenetics
Jun 16, 2009 |
5 / 5 (8) |
0
For many years scientists have known that the numerous biological functions of an organism are not regulated solely by the DNA sequence of its genes: Superordinate regulatory mechanisms exist that contribute to determining ...
Researchers Reveal Structure of Key Genetic Proofreading Protein
Jun 05, 2009 |
5 / 5 (2) |
0
(PhysOrg.com) -- Nature might abhor a vacuum, but it loves a backup plan. In living organisms, physiological systems are kept under tight control by hierarchies of organic safety catches and emergency releases, ...
Researchers study virus with unusual properties
Biology /
Dec 08, 2008 |
4.7 / 5 (14) |
0
(PhysOrg.com) -- A team of researchers from Penn State University and the University of Chicago has uncovered clues that may explain how and why a particular virus, called N4, injects an unusual substance ...
How 'molecular machines' kick start gene activation revealed
Biology /
Nov 06, 2008 |
4.8 / 5 (4) |
0
How 'molecular machines' inside cells swing into action to activate genes at different times in a cell's life is revealed today in new research published in Molecular Cell.
Study Shows How Antibiotic Sets Up Road Block To Kill Bacteria
Oct 23, 2008 |
5 / 5 (6) |
0
(PhysOrg.com) -- Scientists have taken a critical step toward the development of new and more effective antibacterial drugs by identifying exactly how a specific antibiotic sets up a road block that halts bacterial growth.
Study shows how antibiotic sets up road block to kill bacteria
Biology /
Oct 22, 2008 |
5 / 5 (10) |
0
Scientists have taken a critical step toward the development of new and more effective antibacterial drugs by identifying exactly how a specific antibiotic sets up a road block that halts bacterial growth.
Molecule stops DNA replication in its tracks
Biology /
Oct 20, 2008 |
4 / 5 (3) |
0
(PhysOrg.com) -- When a dividing cell duplicates its genetic material, a molecular machine called a sliding clamp travels along the DNA double helix, tethering the proteins that perform the replication. Researchers ...
E. coli discovery could lead to new antibacterial target
Jul 29, 2008 |
4.5 / 5 (4) |
0
Northeastern University scientists have discovered a new and unique DNA binding property of a protein in E. coli. Penny J. Beuning, Assistant Professor in the Department of Chemistry and Chemical Biology, spent the last two ...
