Showing posts with label news. Show all posts
Showing posts with label news. Show all posts

Tuesday, March 29, 2011

New COMS member: Thomas Hamelryck

Thomas Hamelryck and his group has joined COMS.  Thomas leads the Structural Bioinformatics Group in the Department of Biology.

Welcome Thomas

Monday, March 21, 2011

Lovende forskningsmetode åbner kattelem for nye lægemidler


Dansk forsker tæt på at have knækket kompliceret kode for analyse af proteinmolekyler. Det kan i bedste fald betyde, at medicinalindustrien i nær fremtid kan udvikle nye og forbedrede lægemidler.
Forestil dig, at din dørlås til huset ikke vil åbne. Du tilkalder en låsesmed, som ankommer i en lastbil fyldt til bristepunktet med hundredtusindvis af forskellige sæt nøgler.

Hver enkelt skal afprøves, da videnskabelige og tekniske begrænsninger gør det umuligt for låsesmeden at identificere indmaden af dørlåsen og derefter lave en tilsvarende kopi.

Scenariet virker lige så absurd, som det er omstændeligt. Men selve arbejdsmetoden er faktisk almindelig videnskabelig praksis blandt forskere, der beskæftiger sig med de voldsomt komplicerede, men yderst betydningsfulde proteinmolekyleanalyser.

Ved at opnå et faktisk billede af strukturen i proteiner kan forskerne nemlig både hurtigere og bedre hæmme det enzym, der har forbindelse til en given sygdom.

Med andre ord er givtige proteinanalyser forstadiet til at forstå og identificere stort set alle slags sygdomme.

I dag kræver proteinanalyser imidlertid både højt uddannede forskere og enorme mængder tid. Men den langsommelige proces kan nu vise sig at være ovre. En ny strukturanalyse menes at kunne reducere tidsforbruget for et enkelt protein fra ti måneder til to dages computerarbejde.

»Banebrydende resultater«

Det er ph.d.-forskeren Anders Christensen, der står bag den såkaldte kvanteberegningsmetode. Han vurderer, at det reducerede tidsforbrug vil kunne gøre underværker for medicinalindustrien.
»Det vil give medicinal- og biotekvirksomheder mulighed for at undersøge markant flere proteinmutationer. De vil altså have mange flere kandidater at vælge imellem, når de skal udvikle et nyt, virksomt stof,« forklarer Anders Christensen, der netop har taget hul på sin kandidatuddannelse på Københavns Universitet.

Testresultaterne har indtil videre været så lovende, at medicinalgiganten Novo Nordisk er gået ind i projektet, som de støtter med 1,3 mio. kr. over en treårig periode.

Det er ganske klogt, vurderer professor i teoretisk kemi ved Kemisk Institut Jan Halborg Jensen.
»Hvis det lykkes, er det banebrydende resultater for forskningen. Et oplagt eksempel på sygdomme, vi muligvis vil kunne identificere, er Alzheimers og visse cancersygdomme. De er bygget op omkring små proteiner, og hvis vi kan afsløre strukturen på dem, vil det kunne åbne for udviklingen af helt nye lægemidler,« siger Jan Halborg Jensen, der fungerer som faglig vejleder for Anders Christensen.
Ifølge Jan Halborg Jensen opgiver mange forskere allerede at granske proteinopbygningen hos en del sygdomme, da den konventionelle strukturanalyse er enormt kompliceret.

Professoren forklarer, at den nuværende analyseproces svarer til, at man reparerer noget, man ikke kan se. Mange forskere arbejder med andre ord i blinde, når de skal analysere forskellige proteinmolekyler. Men den nye kvanteberegningsmetode giver altså fornyet håb til forskerne, der i øjeblikket kæmper hårdt med at få bugt med de vanskelige og komplekse proteinanalyser.

»Anders Christensens metoder ser spændende ud, og vi hopper da helt sikkert med på vognen, hvis resultaterne også fremadrettet er positive. Proteinanalyser er nemlig ekstremt ressourcekrævende. Det kan i værste fald tage flere år at foretage, mens der er visse enzymer, det slet ikke er muligt at analysere med de nuværende redskaber. Hvis metoden viser sig at holde vand, er det helt klart et kvantespring for forskningen og dermed også et skridt i den rigtige retning mod at udvikle nye lægemidler,« siger funktionschef i forskningen hos Lundbeck Klaus Bæk Simonsen.

Wednesday, March 9, 2011

Journalist: force scientists to blog

A journalist from Berlingske (a major Danish newspaper) has, on his own blog (in Danish, sorry!), suggested that researchers should be forced to blog.  Be sure to read the comments.

Here's one response from another blogger (also in Danish, sorry!). 

Thursday, February 17, 2011

Center of Excellence proposal moves on to round 2

The Center of Excellence pre-proposal I, Thomas Hamelryck, Flemming Poulsen, and Jesper Ferkinghoff-Borg submitted to the Danish National Research Foundation (Danmarks Grundforskningsfond) was one of 27 selected out of 198 for the second round.

The proposal builds on Anders Christensen's Ph.D. project on protein structure determination using chemical shifts.

The proposal deadline is the 28th of April, and we'll know if we made it some time in October.

Tuesday, February 15, 2011

European Summerschool in Quantum Chemistry 2011

European Summerschool in Quantum Chemistry 2011
http://esqc.ups-tlse.fr/11

to be held at Hotel Torre Normanna near Palermo, Sicily, Italy
September 18 - October 1 2011

The European summerschool in quantum chemistry will take place for the 13th time from September 18 to October 1st, 2011. The goal of the school is to introduce the participants to modern methods and computational techniques in quantum chemistry. More and more scientists in different fields of chemistry
are using theoretical methods in their research, either as a technique per se, or as a complement to experimental work. As a result there is a growing need to acquire the background knowledge necessary for skilful use of these methods. The European Summer School in Quantum Chemistry (ESQC) was started with the aim of disseminating such knowledge. The first school was held in August 1989 under the direction of the late Bjørn Roos. The emphasis of the school is more on understanding than on the technical aspects of methods and much time will be devoted to the discussion of different electronic structure problems and the choice of appropriate methods for their solution. The course will consist of both lectures and tutorials.

Friday, February 4, 2011

Shooting star in Chemistry to develop lighting-fast protein analysis

From the Departmental newsletter written by Jes Andersen:


Proteins are a bit like keys. By observing the shape of the key you can figure out which lock it will open and observing the shape of a protein allows you to reveal which functions it performs. Today's technique requires the efforts of a small research team for several months to discover the configuration of a just single protein.  Read more here

Visualized molecules can make chemistry comprehensible

From the Departmental news letter written by Jes Andersen:

When students experience chemistry as “tough stuff”, it’s often due to the difficulty of fully appreciating molecules that are too small and reactions that are too fast. Chemistry professor Jan Jensen has a method of making chemistry much more visible. Using computer-based simulations and visualisations, he offers his students a more intuitive and less abstract gateway into the field of chemistry. Now, Jensen and his colleagues at the Centre for Computational Molecular Science have received 200,000 kroner from the University’s “Education at its Best” project to develop and diffuse visualisation tools throughout the courses of his fellow chemistry instructors. He is convinced that these tools will make it a bit easier to become a chemist.

“In the oral examinations, I’ve noticed that even those who are quite poor at equations have improved in their ability to explain what is going on at the molecular level,” explains Jensen. In the coming months Jensen and his collaborators in the Centre for Computational Molecular Science will adapt the visualisation tools to courses at the University of Copenhagen.

The hope is that ambassadors from the Centre will ensure that the visualisation methods spread like ripples across water. While Jensen expects to employ student interns to create finished “instruction packages”, he encourages curious professors to sign up for the development phase. “I am confident that this will make it easier to teach chemistry. But here at the beginning, it would be more fun to test ideas in collaboration with professors who actually have a desire to use these tools,” affirms Jensen who is confident that these methods will benefit instructors as well. “I have a few lectures where I do not use the visualisations and I can clearly see that I lose the students’ attention,” concludes Jensen.

Read Jan Jensen’s blog post about visualisation.
Read about the grant.

The Japanese taught him focus… and how to enjoy the weekend

From the Departmental news letter written by Jes Andersen:

Most equate study abroad with academic challenges. But For Kasper Steinmann, the chance to study in the Tokyo suburb of Tsukuba offered lessons which proved to be very human.
Read entire story here.