Featured Research

from universities, journals, and other organizations

Tiny tweezers and their big influence on bustling proteins: Scientists investigate molecular 'clothespins'

Date:
February 22, 2013
Source:
Max-Planck-Institut für Kohlenforschung
Summary:
Tiny molecular tweezers have a remarkable impact on bustling proteins: Scientists have found that molecular tweezers can be used to regulate protein-protein interactions by selectively trapping certain residues of the protein -- and stick like a clothespin.

The molecular tweezers can be used to regulate protein - protein interactions by selectively trapping certain residues of the protein.
Credit: Image courtesy of Max-Planck-Institut für Kohlenforschung

Tiny molecular tweezers have a remarkable impact on bustling proteins: Three research groups from the University of Duisburg-Essen (UDE), the Chemical Genomics Centre of the Max Planck Society in Dortmund and the Max Planck Institut für Kohlenforschung in Mülheim found that the molecular tweezers designed by Professor Frank Klärner at the UDE can be used to regulate protein -- protein interactions by selectively trapping certain residues of the protein -- and stick like a clothespin.

The research groups of Thomas Schrader (UDE), Christian Ottmann (Chemical Genomics Centre) and Elsa Sanchez Garcia (MPI für Kohlenforschung) believe that this might be a promising approach for applications in medical research, as the water soluble tweezers act without inducing toxicity or explicit side effects.

The scientists have tested their small tweezers on proteins that have influence on many processes in the human body. "We also wanted to know how they work," says Dr. Elsa Sanchez Garcia, leader of a Max Planck research group at the Max Planck Institut für Kohlenforschung. The chemists have found out that although their tweezers prefer to bind at the amino acid lysine, the protein surrounding of the lysine influences the trapping of the tweezers. Thus, with computer simulations Dr. Sanchez Garcia and her colleague Kenny Bravo Rodriguez have shown which type of lysine the tweezers prefer -- and why that is the case. Their work also allowed to lay down rules for predicting the behavior of the tweezers in the presence of proteins with several lysine residues.

Although the tweezers research is at early stages, their potentiality makes it worth for medical researchers to have a closer look at these results. The 14-3-3 adapter proteins (14-3-3) that the scientists used for their experiments are small recognition proteins that influence many physiological processes by binding their targets via short peptide sequences and modulating their function. For instance, they are able to stabilize certain tumor suppressors. Because of their important role in many biological processes, 14-3-3 proteins are prospective therapeutic agents against severe disorders, such as cancer.

The three research groups published their findings in the Nature Chemistry.


Story Source:

The above story is based on materials provided by Max-Planck-Institut für Kohlenforschung. Note: Materials may be edited for content and length.


Journal Reference:

  1. David Bier, Rolf Rose, Kenny Bravo-Rodriguez, Maria Bartel, Juan Manuel Ramirez-Anguita, Som Dutt, Constanze Wilch, Frank-Gerrit Klärner, Elsa Sanchez-Garcia, Thomas Schrader, Christian Ottmann. Molecular tweezers modulate 14-3-3 protein–protein interactions. Nature Chemistry, 2013; 5 (3): 234 DOI: 10.1038/nchem.1570

Cite This Page:

Max-Planck-Institut für Kohlenforschung. "Tiny tweezers and their big influence on bustling proteins: Scientists investigate molecular 'clothespins'." ScienceDaily. ScienceDaily, 22 February 2013. <www.sciencedaily.com/releases/2013/02/130222102648.htm>.
Max-Planck-Institut für Kohlenforschung. (2013, February 22). Tiny tweezers and their big influence on bustling proteins: Scientists investigate molecular 'clothespins'. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2013/02/130222102648.htm
Max-Planck-Institut für Kohlenforschung. "Tiny tweezers and their big influence on bustling proteins: Scientists investigate molecular 'clothespins'." ScienceDaily. www.sciencedaily.com/releases/2013/02/130222102648.htm (accessed July 23, 2014).

Share This




More Matter & Energy News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Government Approves East Coast Oil Exploration

Government Approves East Coast Oil Exploration

AP (July 18, 2014) — The Obama administration approved the use of sonic cannons to discover deposits under the ocean floor by shooting sound waves 100 times louder than a jet engine through waters shared by endangered whales and turtles. (July 18) Video provided by AP
Powered by NewsLook.com
Sunken German U-Boat Clearly Visible For First Time

Sunken German U-Boat Clearly Visible For First Time

Newsy (July 18, 2014) — The wreckage of the German submarine U-166 has become clearly visible for the first time since it was discovered in 2001. Video provided by Newsy
Powered by NewsLook.com
Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Reuters - US Online Video (July 17, 2014) — President Barak Obama stopped by at a lunch counter in Delaware before making remarks about boosting the nation's infrastructure. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

TheStreet (July 16, 2014) — Oil Futures are bouncing back after tumbling below $100 a barrel for the first time since May yesterday. Jeff Grossman is the president of BRG Brokerage and trades at the NYMEX. Grossman tells TheStreet the Middle East is always a concern for oil traders. Oil prices were pushed down in recent weeks on Libya increasing its production. Supply disruptions in Iraq fading also contributed to prices falling. News from China's economic front showing a growth for the second quarter also calmed fears on its slowdown. Jeff Grossman talks to TheStreet's Susannah Lee on this and more on the Energy Department's Energy Information Administration (EIA) report. Video provided by TheStreet
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins