In a step toward understanding the early evolution of the cell, researchers at UT Southwestern Medical Center have discovered that an enzyme important in the production of energy also protects the mitochondria, the energy factory itself.
The enzyme, called aconitase, is a well-known component of the pathway in cells that produces energy. But in a study using bakers yeast, Dr. Ronald Butow, professor of molecular biology, has shown a new function for the enzyme – keeping the mitochondrial genome intact.
The study is available online and in the Feb. 4 edition of the journal Science.
Mitochondria are the powerhouses of cells and create energy for all cellular processes. It is thought that mitochondria are descended from bacteria that originally took up residence in early cells. Through elements of a little-understood symbiotic relationship between the bacteria and the cell, the bacteria lost their independence and evolved into an organelle that provides energy for the cell. The relationship between mitochondria and the cell make each vital to the others survival, and may explain a key biological event – the development of an efficient energy producer to fuel the evolution of more complex life forms.
Megha Satyanarayana | EurekAlert!
The birth of a new protein
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Building New Moss Factories
20.10.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
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20.10.2017 | Interdisciplinary Research