Biochemists from Trinity College Dublin have devised a new technique that will make the difficult but critical job of blueprinting certain proteins considerably faster, cheaper and easier.
The breakthrough will make a big splash in the field of drug discovery and development, where precise protein structure blueprints can help researchers understand how individual proteins work. Critically, these blueprints can show weaknesses that allow drug developers to draw up specific battle plans in the fight against diseases and infections.
Professor of Membrane Structural and Functional Biology at Trinity, Martin Caffrey, is the senior author of the research, which has just been published in the international peer-reviewed journal Acta Crystallographica D. He said:
"This is a truly exciting development. We have demonstrated the method on a variety of cell membrane proteins, some of which act as transporters. It will work with existing equipment at a host of facilities worldwide, and it is very simple to implement."
Over 50% of drugs on the market target cell membrane proteins, which are vital for the everyday functioning of complex cellular processes. They act as transporters to ensure that specific molecules enter and leave our cells, as signal interpreters important in decoding messages and initiating responses, and as agents that speed up appropriate responses.
The major challenge facing researchers is the production of large membrane protein crystals, which are used to determine the precise 3-D structural blueprints. That challenge has now been lessened thanks to the Trinity biochemists' advent - the in meso in situ serial crystallography (IMISX) method.
Beforehand, researchers needed to harvest protein crystals and cool them at inhospitable temperatures in a complex set of events that was damaging, inefficient and prone to error. The IMISX method allows researchers to determine structural blueprints as and where the crystals grow.
Professor Caffrey added: "The best part of this is that these proteins are as close to being 'live' and yet packaged in the crystals we need to determine their structure as they could ever be. As a result, this breakthrough is likely to supplant existing protocols and will make the early stages of drug development considerably more efficient."
The work was done in collaboration with scientists at the Swiss Light Source and the University of Konstanz and was supported by a grant from Science Foundation Ireland.
A pdf is available on request.
Thomas Deane | EurekAlert!
Complete skin regeneration system of fish unraveled
24.04.2018 | Tokyo Institute of Technology
Scientists generate an atlas of the human genome using stem cells
24.04.2018 | The Hebrew University of Jerusalem
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
24.04.2018 | Information Technology
24.04.2018 | Earth Sciences
24.04.2018 | Life Sciences