Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists at IRB Barcelona discover a new protein critical for mitochondria

03.11.2010
This finding has brought them the “Paper of the week” of the Journal of Biological Chemistry, one of the journals of greatest impact in basic biology.

Called SLIMP, the protein is required for mitochondria maintenance, the cellular powerhouses.

On the right side we can see aberrant fly and mitochondria when SLIMP is silenced.

A study by the team headed by Lluís Ribas de Pouplana, ICREA professor at the Institute for Research in Biomedicine (IRB Barcelona), has been chosen as “Paper of the week” in the December issue of the Journal of Biological Chemistry, which is already available online. The article describes the discovery of a new protein in the fly Drosophila melanogaster (fruit fly) that is crucial for mitochondria. The removal of SLIMP in these flies leads to aberrant mitochondria and loss of metabolic capacity, thus causing death.

The study, whose first author is Tanit Guitart, a PhD student in Ribas’ lab, has been recognised as “Paper of the week” award because of the “significance and global relevance” of the research performed. Furthermore, the editors have included it among the best studies that have appeared in the journal this year. Of the 6600 articles published, only between 50 and 100 receive the distinction of “Article of the week”.

Result of animal evolution
The SLIMP protein derives from a seryl-tRNA synthetase, universal enzymes that are crucial for the synthesis of new proteins. However, SLIMP has lost its original function and performs a different biological role, which remains to be determined. The researchers studied its possible implication in the regulation of mitochondrial division and the interaction with nucleic acids (DNA, RNA).

SLIMP evolved by duplication of the seryl-tRNA synthetase about 540 million years ago, at the beginning of the Cambrian, before the appearance of the starfish and sea urchins family. SLIMP is not present in vertebrates, and it is possible that another protein has taken over its function. “If this were the case, we could look for the protein equivalent in vertebrates, determine its function and focus on these organisms. Here we have work for the next ten years”, says Ribas. This study was performed in collaboration with researchers in the groups devoted to “Heterogenic and Multigenic Diseases” and “Chromatin structure and function”, both at IRB Barcelona.

Reference article:
A new aminoacyl-tRNA synthetase-like protein in insecta with an essential mitochondrial function
Tanit Guitart, Teresa Leon Bernardo, Jessica Segalés, Thomas Stratmann, Jordi Bernués and Lluís Ribas de Pouplana

Journal of Biological Chemistry (2010) [DOI: 10.1074/jbc.M110.167486]

Sònia Armengou | EurekAlert!
Further information:
http://www.irbbarcelona.org
http://www.irbbarcelona.org/index.php/en/news/irb-news/scientific/scientists-at-irb-barcelona-discover-a-new-protein-critical-for-mitoc

More articles from Life Sciences:

nachricht Zebrafish's near 360 degree UV-vision knocks stripes off Google Street View
22.06.2018 | University of Sussex

nachricht New cellular pathway helps explain how inflammation leads to artery disease
22.06.2018 | Cedars-Sinai Medical Center

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Temperature-controlled fiber-optic light source with liquid core

In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.

Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...

Im Focus: Overdosing on Calcium

Nano crystals impact stem cell fate during bone formation

Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Graphene assembled film shows higher thermal conductivity than graphite film

22.06.2018 | Materials Sciences

Fast rising bedrock below West Antarctica reveals an extremely fluid Earth mantle

22.06.2018 | Earth Sciences

Zebrafish's near 360 degree UV-vision knocks stripes off Google Street View

22.06.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>