HOME >> BIOLOGY >> NEWS
Molecular rendezvous caught on camera

This release is also available in German.

The body is an almost perfect machine. For it to function properly, each individual component, that is each molecule, must reliably fulfill its specific function. Each molecule must thus "recognize" other molecules and work with them. A team of researchers from the Max Planck Institute for Solid State Research in Stuttgart, the Fraunhofer Institute in Freiburg, and King's College in London, has now successfully filmed pairs of molecules during the recognition process. As reported to the journal Angewandte Chemie, the shapes of the molecules change to accommodate each other.

Like humans, molecules also "greet" each other with a kind of "handshake". Anyone who has tried to shake someone's right hand with his or her own left will have had a little trouble: the right and left hands do not fit together. In the same way, some molecules that exist in both a right-handed (D) and left-handed (L) configuration can tell if others they encounter are the D or L form.

Magali Lingenfelder and colleagues at the Max Planck Institute for Solid State Research have now been able to use scanning tunneling microscopy to take a series of pictures that follow in detail the "encounters" of diphenylalanine molecules adsorbed onto a substrate. (Diphenylalanine is the central structural unit within polypeptide fibers found in the brains of Alzheimer's patients.) The "film sequences" reveal that only molecules with the same chirality (handedness) readily aggregate into pairs and chains.

Just as in a handshake, it is not enough that the right hands hold each other. To grip each other firmly, the two hands must adapt to fit their shapes together. Molecules do the same: close examination of the "film", in conjunction with theoretical calculations by researchers from King's College, prove that this type of dynamic accommodation of shape also o
'"/>

Contact: Magal Lingenfelder
m.lingenfelder@fkf.mpg.de
49-711-689-1620
John Wiley & Sons, Inc.
2-May-2007


Page: 1 2

Related biology news :

1. Molecular detectors may refine cancer treatment
2. Story ideas from Molecular & Cellular Proteomics
3. 2007 Image of the Year: Molecular imaging relates human brain chemistry to aggressive behavior
4. Molecular motors may speed nutrient processing
5. Molecular tools make the cut
6. Genomatix and Molecular Connections form strategic partnership
7. Molecular motors and brakes work together in cells
8. Molecular link between inflammation and cancer discovered
9. Molecular on/off switch controls immune defenses against viruses
10. Molecular marker on stem cells aids research, perhaps therapies
11. Molecular mechanism provides intra-cellular traffic signal

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Molecular rendezvous caught camera

(Date:10/14/2014)... – October 14, 2014 – Scientists from The Scripps ... the National Institutes of Health (NIH) to lead an ... hemorrhagic fever disease in Africa. The study aims to ... some patients die, while others survive the inflection. ... the basic mechanism of how Lassa fever virus causes ...
(Date:10/14/2014)... international team of researchers, led by the Chinese Academy ... Nature Genetics a brief genomic history of ... the tomato plant. , The C.M. Rick Tomato Genetics ... in this study by providing seed of both cultivated ... which builds on the first tomato genome sequence completed ...
(Date:10/14/2014)... – Over the past decades, we have seen numerous ... the needs of infants for social contact and stimulation ... thrive. , Infancy and childhood are critical ... A generation of research suggests that enriched environments, full ... cognitive function. In contrast, deprivation and stress may compromise ...
Breaking Biology News(10 mins):Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2Institutional rearing may increase risk attention-deficit disorder 2
(Date:10/18/2014)... October 18, 2014 The Asian arthroscopic ... Asia with analysis and forecast of revenue. The arthroscopic ... $712.3 million by 2018, at a CAGR of 6.5% ... of the Asian arthroscopic devices market, to get an ... a glimpse of the segmentation of arthroscopic devices market ...
(Date:10/18/2014)... NY (PRWEB) October 18, 2014 The ... healthy rate in the five years to 2014. The ... federal renewable energy tax credits that encouraged the use ... enacted renewable portfolio standards (RPSs), which require local utilities ... of their total energy portfolio. Increased campaigning for green ...
(Date:10/17/2014)... engineering professors have received a $451,781 Air Force Office ... at the micro- and nano-scale level that will provide ... professor of Mechanical and Aerospace Engineering, said the new ... than taking X-rays of an aircraft,s wing., "We,ll be ... when we look at it on this scale," Huang ...
(Date:10/17/2014)... October 17, 2014 Bioquell, provider ... upon by health facilities around the world to ... being treated. Among the many places the hydrogen ... Health Presbyterian Hospital Dallas and at the National ... vapor-producing robots have been utilized to decontaminate patient ...
Breaking Biology Technology:The Asian arthroscopic devices market is estimated to grow to $712.3 million by 2018 - New Report by MicroMarket Monitor 2The Asian arthroscopic devices market is estimated to grow to $712.3 million by 2018 - New Report by MicroMarket Monitor 3The Asian arthroscopic devices market is estimated to grow to $712.3 million by 2018 - New Report by MicroMarket Monitor 4Biomass Power in the US Industry Market Research Report from IBISWorld Has Been Updated 2Biomass Power in the US Industry Market Research Report from IBISWorld Has Been Updated 3UT Arlington project to detect possible damages in aircraft parts early in process 2Bioquell’s Vapor Producing Robots Selected to Combat Ebola in Hospitals Around the World 2Bioquell’s Vapor Producing Robots Selected to Combat Ebola in Hospitals Around the World 3Bioquell’s Vapor Producing Robots Selected to Combat Ebola in Hospitals Around the World 4Bioquell’s Vapor Producing Robots Selected to Combat Ebola in Hospitals Around the World 5Bioquell’s Vapor Producing Robots Selected to Combat Ebola in Hospitals Around the World 6
Cached News: