Archaea News and Research

RSS

Scientists identify proteasome phosphatase that appears to regulate removal of damaged proteins

A study by scientists at the University of California, San Diego and UC Irvine has identified an enzyme called a proteasome phosphatase that appears to regulate removal of damaged proteins from a cell. The understanding of how this process works could have important implications for numerous diseases, including cancer and Parkinson's disease.

28 Sep 2011

Researchers sample hydrogenotrophic microbes in the healthy human colon

They make up less than one-hundredth of 1 percent of the microbes that live in the colon, but the bacteria and archaea that sop up hydrogen in the gut are fundamental to colon health. In a new study, researchers take a first look at these "hydrogenotrophic" microbes, mapping where they live and how abundant they are in different parts of the lower intestine.

3 Aug 2011

Gut microflora may influence obesity treatments

Obesity in the United States is reaching ever more alarming proportions, posing a severe menace to public health and exacerbating a crisis in health care costs both domestically and worldwide.

27 Jul 2011

New discovery provides insight into complex Rad50 molecular motor function

Over the last years, two teams of researchers at The Scripps Research Institute have steadily built a model of how a powerful DNA repair complex works. Now, their latest discovery provides revolutionary insights into the way the molecular motor inside the complex functions - findings they say may have implications for treatment of disorders ranging from cancer to cystic fibrosis.

28 Mar 2011

Cataloguing microbes in gut could lead to cause of necrotizing enterocolitis

Scientists have for the first time sequenced and reconstructed the genomes of most of the microbes in the gut of a premature newborn and documented how the microbe populations changed over time.

14 Jan 2011

Protein acetylation not rare in bacteria

Lowly bacteria are turning out to be much more complex than previously thought.

13 Jul 2010

Small molecule ramps up interferon production in host cells, launching potent immune response

Many disease-causing microbes carry pumps that expel antibiotics, making the bugs hard to kill with standard drugs. Ironically, these same pumps could be the bugs' Achilles heel.

28 May 2010

Researchers investigate effects of nanoparticles on yeast

Nanoparticles are already widely used in everyday products such as cosmetics, textiles, dyes, and paints. It is quite possible that these minute fragments of matter may in future not only come to play a crucial role in medicine and pharmacology, but also in the food and biotechnology industries. The latest research currently being conducted in India has shown that nanoparticles can promote the growth of fungi and even assist plant growth.

12 Apr 2010

Surprising new insights into the repair strategies of DNA

A microscopic single-celled organism, adapted to survive in some of the harshest environments on earth, could help scientists gain a better understanding of how cancer cells behave.

15 Jul 2009

Coenzyme rare to bacteria critical to Mycobacterium tuberculosis survival

Coenzyme F420, a small molecule that helps certain enzymes transfer electrons, is found in microorganisms known as methane-producing archaea, some of which thrive in extreme environments.

23 Mar 2009

Protein structures reveal "big bang" of innovation in evolution

A new study of proteins, the molecular machines that drive all life, also sheds light on the history of living organisms.

11 Mar 2009

From the works of Shakespeare to the genomes of viruses

What does uncovering the true authorship of plays attributed to Shakespeare have to do with identifying our genetic ancestors or classifying new life forms?

11 Feb 2009

Microbes within gut may hold key to one cause of obesity

In terms of diversity and sheer numbers, the microbes occupying the human gut easily dwarf the billions of people inhabiting the Earth.

19 Jan 2009

Discovery of new mechanism for cell division

A Swedish research group, partly financed by NWO, has discovered a new mechanism for cell division in a microorganism found in extremely hot and acidic conditions.

25 Nov 2008

A virus-infecting virus

Using the Genome Sequencer System from 454 Life Sciences, a Roche company, French scientists have identified a small virus that can actually be parasitic to a larger one.

7 Nov 2008

Novel cell division mechanism discovered

A novel cell division mechanism has been discovered in a microorganism that thrives in hot acid. The finding may also result in insights into key processes in human cells, and in a better understanding of the main evolutionary lineages of life on Earth. The study is published today in the online version of the journal of the American National Academy of Sciences, PNAS.

28 Oct 2008

Evolution in the ribosome

A new study of the ribosome, the cell's protein-building machinery, sheds light on the oldest branches of the evolutionary tree of life and suggests that differences in ribosomal structure between the three main branches of that tree are "molecular fossils" of the early evolution of protein synthesis.

18 Aug 2008

New control mechanism for genetic code translation discovered in bacteria

Almost all organisms, from bacteria to human beings, share the same genetic code, a group of universal instructions used to convert DNA or RNA sequences into proteins, the "building blocks" of life.

17 Feb 2008

Model developed that predicts molecular response of living cells to genetic or environmental change

Scientists at the Institute for Systems Biology (ISB), in collaboration with researchers from New York University (NYU), have developed a model which rapidly characterizes and accurately predicts the molecular-level, mechanistic response of a free-living cell to genetic and environmental changes.

28 Dec 2007