Navigation Links
Can genetic information be controlled by light?
Date:10/10/2008

This release is available in German.

DNA, the molecule that acts as the carrier of genetic information in all forms of life, is highly resistant against alteration by ultraviolet light, but understanding the mechanism for its photostability presents some puzzling problems. A key aspect is the interaction between the four chemical bases that make up the DNA molecule. Researchers at Kiel University have succeeded in showing that DNA strands differ in their light sensitivity depending on their base sequences. Their results are reported by Nina Schwalb and colleagues in the current issue of the journal Science appearing on October 10, 2008.

It has been known for many years that the individual bases that code the genetic information contained in DNA show a high degree of photostability, as the energy that they take up from UV radiation is immediately released again. Surprisingly, however, it is found that in DNA, which consists of many bases, those mechanisms are ineffective or only partially effective. It seems that the deactivation of UV-excited DNA molecules must instead occur by some completely different mechanisms specific to DNA, which are not yet understood. Through measurements by a variety of methods on DNA molecules with different base sequences, the research group led by Professor Friedrich Temps at the Institute of Physical Chemistry of Kiel University has now been able to confirm and clarify that assumption.

According to Professor Temps, "DNA achieves its high degree of photostability through its complex double-helix structure. The interactions between bases that are stacked one above another within a DNA strand, and the hydrogen bonds between the base pairs of the two complementary single strands in the double-helix play key roles. Through the different interactions that we have observed the DNA acts to some extent as its own
'/>"/>

Contact: Nina Schwalb
schwalb@phc.uni-kiel.de
49-431-880-2833
Kiel University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Does the desire to consume alcohol and tobacco come from our genetic makeup?
2. Diverse genetic abnormalities lead to NF-κB activation in multiple myeloma
3. Many parents at-risk for cancer disclose genetic test results to children
4. Genetics determine optimal drug dose of common anticoagulant
5. Claims of sex-related differences in genetic association studies often not properly validated
6. American College of Medical Genetics responds to new FDA labeling decision for warfarin
7. UNC study questions FDA genetic-screening guidelines for cancer drug
8. Genome study shines light on genetic link to height
9. Selexis Announces Advanced Approach to Maximize Power of Genetic Elements for Rapid Development of High Performance Cell Lines
10. Genes, Environment and Health Initiative invests in genetic studies, environmental monitoring
11. Rutgers Genetics receives $7.8 million for autism research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... July 31, 2014 Biometrics industry ... innovative smart technologies; companies turn towards digital currency: NXT-ID, ... ), Amazon.com Inc. (NASDAQ: AMZN ), Facebook ... GOOG ) and Microsoft Corporation (NASDAQ: MSFT) ... on the growing m-commerce market, announces a video featuring ...
(Date:7/31/2014)... While previous studies have shown that marine noise can ... scientists from the Universities of Bristol and Exeter and ... France have demonstrated that boat noise stops embryonic development ... hares, (specifically the sea slug Stylocheilus striatus ... to swim away and later feed on toxic alga ...
(Date:7/30/2014)... New York University is paving the way for ... civilians and military troops exposed to poisonous chemicalsparticularly ... An article in the current issue of the ... detoxifying organophosphates, which are compounds commonly used in ... developed by NYU School of Engineering Associate Professor ...
Breaking Biology News(10 mins):Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 2Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 3Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 4Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 5Smart Technology Consumer's Interest in Mobile Payment Products Grows - Company Secures Deal with Major Airline to Display Advertisements in Flight for its Next Generation Smart Wallet 6Boat noise impacts development and survival of sea hares 2Engineering a protein to prevent brain damage from toxic agents 2
... April 19, 2010 Scientists from The Scripps Research ... how certain genetic mutations lead to Type 1 diabetes. This ... 1 diabetes and other autoimmune diseases. The study was ... of Clinical Investigation on April 19, 2010, and will ...
... of the Carnegie Institution,s Department of Global Ecology, is ... sciences, the humanities and the arts, business, public affairs, ... the new class of members of the American Academy ... world,s most prestigious honorary societies, cited Field for his ...
... BUFFALO, N.Y. -- A University at Buffalo volcanologist, an expert ... how the jet stream -- the area in the atmosphere ... be the area most likely to be impacted by plumes ... Bursik, PhD, one of the foremost experts on volcanic plumes ...
Cached Biology News:Scripps Research scientists reveal how genetic mutations may cause type 1 diabetes 2Scripps Research scientists reveal how genetic mutations may cause type 1 diabetes 3Carnegie's Chris Field elected to American Academy of Arts & Sciences 2Volcanic ash research shows how plumes end up in the jet stream 2
(Date:7/31/2014)... 31, 2014 According to a ... for Medical Devices Market (Diagnostic Electrodes - ECG, EEG, ... TENS, Pacemakers, Defibrillators, Electrosurgical and Other Electrodes) - Global ... - 2019," the global electrodes market for medical devices ... is estimated to reach a market worth USD 1,451.2 ...
(Date:7/31/2014)... Senomyx , Inc. (NASDAQ: ... taste science technologies to discover, develop, and commercialize ... ingredient supply industries, today reported financial results for ... second quarter with $33.6 million in cash and ... past quarter Senomyx achieved another important milestone with ...
(Date:7/31/2014)... San Francisco, Calif. (PRWEB) July 31, 2014 ... provides newly diagnosed patients with an overview of the ... the management of drug side effects, as well as ... , “We’re grateful to Dr. Sandy Srinivas for organizing ... 25-year survivor of kidney cancer. “Sandy and her colleagues ...
(Date:7/31/2014)... 31, 2014 Although RNA-Sequencing is ... first transcriptome-wide analyses appearing around 2008, RNA-Sequencing has ... RNA measurement. In the last several years, assays ... work with smaller input amounts, process degraded RNA, ... samples). On the bioinformatics side, there have been ...
Breaking Biology Technology:Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 2Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 3Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 4Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 5Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 6SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 2SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 3SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 4SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 5SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 6SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 7SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 8SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 9SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 10SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 11SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 12SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 13SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 14SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 15SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 16The Evolution of RNA-Sequencing, Upcoming Live Webinar August 22 hosted by Xtalks 2
... ZyStor Therapeutics, Inc. will seek additional venture ... investigational new drug application, president and CEO Loren G. ... an informal gathering at the Innovation Monday program. He ... seek additional financing before filing the application for its ...
... solid revenue growth could not prevent Renaissance Learning, ... quarter of 2006, and as a result the company ... D. Paul said Tuesday. , ,Renaissance is a provider ... schools and districts. The company said net income, which ...
... Internet Protocol telephony gaining momentum in the private sector, ... Wisconsin product line of Norlight Telecommunications , the ... Cisco premise-based system, the Wisconsin-based voice and data provider ... vendor at a time when the telecommunications industry is ...
Cached Biology Technology:Milwaukee area biotech ZyStor seeks more funding 2Milwaukee area biotech ZyStor seeks more funding 3Renaissance earnings down 46 percent 2Norlight adds Cisco-based IP systems in Wisconsin 2
... White walled plates enhance luminescent signals ... fluorescence,• Not treated (or medium binding) ... and binds biomolecules through passive interactions,• ... of large molecules, such as antibodies, ...
...
... Columbus is a flexible, fully automated microplate strip ... to its fully automated microplate strip washing capability, ... and ease of operation. , ... include manifolds of 8, 12 or 16 channels, ...
... SBED Protein:Protein Interaction Reagent A powerful ... rapidly gained traction as an in vitro ... number of publications feature the exclusive Pierce ... study a variety of issues relating to ...
Biology Products: