Transfer RNA News and Research

RSS

Study examines how cells exploit gene sequences to cope with toxic stress

Toxic chemicals wreak havoc on cells, damaging DNA and other critical molecules. A new study from researchers at MIT and the University at Albany reveals how a molecular emergency-response system shifts the cell into damage-control mode and helps it survive such attacks by rapidly producing proteins that counteract the harm.

4 Jul 2012

Aminoacyl-tRNA synthetases important targets for development of new drugs against major diseases

Researchers at the University of Gothenburg, Sweden, are working to develop substances that can prevent parasites, bacteria and fungi from producing essential proteins, research that could, in the long term, lead to new drugs for several major diseases.

12 Jun 2012

Researchers identify novel base modification in RNA

Over the past decade, research in the field of epigenetics has revealed that chemically modified bases are abundant components of the human genome and has forced us to abandon the notion we've had since high school genetics that DNA consists of only four bases.

18 May 2012

RNP granules exit the nucleus via new budding mechanism akin to herpes-type viruses

New evidence published in Cell by Vivian Budnik, PhD, Melissa J. Moore, PhD, and colleagues at the University of Massachusetts Medical School, reveals a novel budding mechanism, similar to the process used by some viruses, capable of exporting large ribonucleoprotein particles from the nucleus to the cytoplasm.

11 May 2012

Molecular secrets behind halofuginone's power

For roughly two thousand years, Chinese herbalists have treated Malaria using a root extract, commonly known as Chang Shan, from a type of hydrangea that grows in Tibet and Nepal. More recent studies suggest that halofuginone, a compound derived from this extract's bioactive ingredient, could be used to treat many autoimmune disorders as well. Now, researchers from the Harvard School of Dental Medicine have discovered the molecular secrets behind this herbal extract's power.

13 Feb 2012

MSC-mediated RNAi transfer holds promise for Huntington's disease

A team of researchers at the UC Davis Institute for Regenerative Cures has developed a technique for using stem cells to deliver therapy that specifically targets the genetic abnormality found in Huntington's disease, a hereditary brain disorder that causes progressive uncontrolled movements, dementia and death.

20 Jan 2012

KCC Director recognized for distinguished contributions to cancer care

Richard Pestell, M.D., Ph.D., FACP, Director of the Kimmel Cancer Center at Jefferson (KCC), has been named a 2011 Fellow of the American Association for the Advancement of Science.

16 Dec 2011

Ribosomes spontaneously change their form during protein production

Ribosomes, the construction sites for proteins, are far more complex than previously assumed. During the production of proteins they constantly and spontaneously change their form. This performance of eukaryotic ribosomes has now been demonstrated for the first time by scientists at Charité - Universitätsmedizin Berlin, the Max-Planck-Institut für Molekulare Genetik in Berlin, and Cornell University in New York, with the aid of special electron microscopic and biophysical methods.

24 Nov 2011

A code beyond DNA: Modified tRNA bases are characteristic of species

Our genetic code consists of four “letters” in the form of the nucleobases in our DNA and RNA. Three letters together form a “word” that are translated into an amino acid by tRNA and combined into proteins. Special markings subdivide the gene into active and inactive regions. A third possible level of information has so far received less attention: the chemical modification of tRNA nucleobases. In the journal Angewandte Chemie Thomas Carell and a team at the University of Munich have now demonstrated that tRNA modification profiles can be used for the characterization of species and the differentiation of pathogenic and nonpathogenic bacterial strains.

20 Sep 2011

Researchers discover new genetic defect that can lead to Leigh syndrome

In Leigh syndrome, infants are born apparently healthy only to develop movement and breathing disorders that worsen over time, often leading to death by the age of 3. The problem is that the mitochondria responsible for powering their cells can't keep up with the demand for energy in their developing brains.

7 Sep 2011

New technique may help scientists probe mysteries of many different stem cells

Researchers at the Salk Institute have been able to genetically incorporate "unnatural" amino acids, such as those emitting green fluorescence, into neural stem cells, which then differentiate into brain neurons with the incandescent "tag" intact.

8 Jul 2011

Berkeley Lab scientists reveal how protein-making machine bends without breaking

It sounds like hype from a late-night infomercial: It can twist and bend without breaking! And wait, there's more: It could someday help you fend off disease!

20 May 2011

Mitochondrial defect inherited from mother is linked to high blood pressure in one Chinese family

A specific genetic defect in one Chinese family shows that high blood pressure was inherited from the female parent, researchers report in Circulation Research: Journal of the American Heart Association.

1 Apr 2011

Research on ribosome could aid antibiotic development against MRSA infection

Theoretical biologists at Los Alamos National Laboratory have used a New Mexico supercomputer to aid an international research team in untangling another mystery related to ribosomes-those enigmatic jumbles of molecules that are the protein factories of living cells.

3 Dec 2010

Marcus evans Summit highlights potential growth, innovation in drug discovery

Drug discovery scientists need to broaden their approaches to pharmaceutical research and development (R&D) and Medicinal Chemistry, to take advantage of untapped opportunities, says Torsten Hoffmann, Head Discovery Chemistry at F. Hoffmann La Roche, Basel, Switzerland. Chemical Biology allows room for innovation, but is often overlooked by scientists in the industry.

29 Nov 2010

Rib-X Pharmaceuticals presents preclinical data of radezolid drug at ICAAC Conference

Rib-X Pharmaceuticals, Inc., a development-stage antibiotics company with a broad product pipeline based on its innovative discovery platform, today announced the presentation of positive preclinical data for radezolid at the 50th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) conference.

13 Sep 2010

Researchers discover three disease-causing genes in Salmonella

Researchers have discovered a novel mechanism in Salmonella that affects its virulence and its susceptibility to antibiotics by changing its production of proteins in a previously unheard of manner. This allows Salmonella to selectively change its levels of certain proteins to respond to inhospitable conditions.

30 Jul 2010

New research may help advance treatment strategies for common liver disease

A research article published in the journal PloS Pathogens could lead to improvements in the production of vaccines for hepatitis A, the most widespread viral disease in the world.

26 Mar 2010

Pangu BioPharma's naturally occurring splice variants of human tRNA synthetases study awarded second grant

The Innovation and Technology Commission of the Hong Kong government has awarded Pangu BioPharma, the Hong Kong subsidiary of aTyr Pharma, a second grant to fund research it is performing in collaboration with the Hong Kong University of Science and Technology (HKUST). The Innovation and Technology Fund (ITF) provides matching funds over the next 18 months to expand Pangu's successful work in the identification and characterization of naturally occurring splice variants of human tRNA synthetases.

1 Mar 2010

Research uncovers structural basis for multifunctionality of aminoacyl tRNA synthetases

Research published in the December 13, 2009 edition of Nature Structural Biology uncovers the structural basis for the multifunctionality of aminoacyl tRNA synthetases. Aminoacyl tRNA synthetases are universal and essential enzymes of protein synthesis machinery found in all organisms.

14 Dec 2009