Navigation Links
Evolutionary scrap-heap challenge: Antifreeze fish make sense out of junk DNA

Scientists at the University of Illinois have discovered an antifreeze-protein gene in cod that has evolved from non-coding or 'junk' DNA. Since the creation of these antifreeze proteins is directly driven by polar glaciation, by studying their evolutionary history the scientists hope to pinpoint the time of onset of freezing conditions in the polar and subpolar seas. Professor Cheng will present her latest results at the Annual Main Meeting of the Society for Experimental Biology in Canterbury on Tuesday the 4th April [session A2].

Fish such as cod that live in subzero polar waters have evolved to avoid freezing to death by using special antifreeze proteins that work by binding to ice crystals to prevent the crystals growing larger and causing problems. Most of these antifreeze proteins evolve by natural selection from existing proteins when the DNA coding for them duplicates itself and changes over time to give new functions. However, Professor Christina Cheng and her group have found the gene for the cod antifreeze protein has come from a non-coding region of their DNA known as "junk DNA".

"This appears to be a new mechanism for the evolution of a gene from non-coding DNA", says Professor Cheng, "3.5 billion years of evolution of life has produced many coding genes and conventional thinking assumes that new genes must come from pre-existing ones because the probability of a random stretch of DNA somehow becoming a functional gene is very low if not nil. This cod antifreeze gene might be an exception to this because it consists of a short repetitive sequence that only needs to be duplicated four times to give a fully functioning protein".


'"/>

Source:Society for Experimental Biology


Page: 1

Related biology news :

1. Evolutionary conservation of a mechanism of longevity from worms to mammals
2. Evolutionary biology research techniques predict cancer
3. Evolutionary shifts in olfactory sensitivities in fruit flies
4. Evolutionary forces explain why women live longer than men
5. Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck
6. Bionic arm gives amputee sense of touch
7. To translate touch, the brain can quickly rearrange its sense of the body
8. Monkeys understand numbers across senses
9. Fighting malaria by manipulating mosquitoes sense of smell
10. Bacteria which sense the Earths magnetic field
11. New study examines how sense of smell affects mating and aggression in mice
Post Your Comments:
(Date:10/16/2014)... challenged conventional thinking on how the bowel lining develops ... how bowel cancer starts. , The researchers produced evidence ... the ,crypts, that are a feature of the bowel ... bowel cancer development, a controversial finding as scientists are ... 3D imaging technologies, Dr Chin Wee Tan and Professor ...
(Date:10/16/2014)... Syncytial Virus causes severe respiratory tract infections and ... year. Scientists at VIB and Ghent University have ... counteract this common virus infection. , Xavier ... that paves the way for the development of ... virus that causes suffering in numerous small children ...
(Date:10/16/2014)... , October 16, 2014 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... leading edge technologies including Wocket™, the Smart Wallet, at ... Conferenece. FiRe is a leading global conference on the ... Hosted by Mark Anderson , founder and publisher ...
Breaking Biology News(10 mins):Cryptic clues drive new theory of bowel cancer development 2New perspectives for development of an RSV vaccine 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3
... In recent years, the possible applications for double-walled ... those working on developing renewable energy technologies. These ... thin enough to be transparent, yet can still ... advanced solar panels, sensors and a host of ...
... for Glycomics in collaboration with colleagues at the ... to identifying a broad spectrum treatment for the ... These highly-infectious viruses are the leading cause of ... of hospitalisations in the developed world, and hundreds ...
... Dec. 23, 2008 -- The reproductive spores of many ... to new research by mycologists and applied mathematicians at ... this week in the Proceedings of the National ... fungal spores is within one percent of the absolute ...
Cached Biology News:Researchers find chink in the armor of viral 'tummy bug' 2In many fungi, reproductive spores are remarkably aerodynamic 2
(Date:10/25/2014)... Charlotte, NC (PRWEB) October 24, 2014 ... high intensity focused ultrasound (HIFU) technology, announced that ... Carol, M.D. as Chief Executive Officer, President and ... new role Dr. Carol will take-on expanded responsibilities ... HIFU technology, as well as overseeing commercialization, manufacturing ...
(Date:10/25/2014)... JERUSALEM , October 24, 2014 ... a clinical-stage pharmaceutical company focused on the development of ... CEO, Nadav Kidron will present at FireRock ... ,FireRock Capital,s Annual Micro-Cap Conference ,Date: Tuesday, October 28, ... Building, New York City , ...
(Date:10/25/2014)... 2014 Investor-Edge has initiated coverage ... CYTR ), Vertex Pharmaceuticals Inc. (NASDAQ: VRTX ... Peregrine Pharmaceuticals Inc. (NASDAQ: PPHM ), and ... companies can be accessed at: http://investor-edge.com/register . ... ended on a positive note as the Dow Jones ...
(Date:10/22/2014)... 22, 2014 New test innovations will be ... diagnostic (IVD) test industry, especially as companies struggle with ... listed more than 25 testing innovations in important disease ... of IVD products. Kalorama details the new approaches its biennial ... for In Vitro Diagnostic Tests , 9th Edition ...
Breaking Biology Technology:SonaCare Medical Board of Directors Appoints Dr. Mark Carol as CEO and President 2SonaCare Medical Board of Directors Appoints Dr. Mark Carol as CEO and President 3Oramed to Present at the FireRock Annual Micro-Cap Conference 2Oramed to Present at the FireRock Annual Micro-Cap Conference 3Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 2Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 3Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 4Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 5Report: Radical New IVD Test Approaches Key To Growth 2Report: Radical New IVD Test Approaches Key To Growth 3
... Inc. (Nasdaq:,BIOD) today reported financial results for its second quarter ... $9.6 million or $0.43 per share., "We remain on ... and Chairman of Biodel. "The last patient visits for,both pivotal ... We,expect to announce top line data late in the third ...
... Pennsylvania and OXFORD, England, May 9 ,EUSA Pharma ... oncology, pain control and critical care, today announced ... following the,approval of Cytogen,s shareholders at a special ... of the acquisition agreement, Cytogen shareholders will,receive $0.62 ...
... Pharmaceuticals, Inc.,(Nasdaq: ARNA ) announced today that the ... 2008 Healthcare Conference on May 14, 2008 at 5:20 ... Seasons Hotel in Las,Vegas, Nevada. Dominic P. Behan, Ph.D., ... to provide an overview of the,company, including its clinical ...
Cached Biology Technology:Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 2Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 3Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 4Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 5Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 6Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 7Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 8Biodel Inc. Reports Second Quarter Fiscal Year 2008 Financial Results 9EUSA Pharma Completes Acquisition Of Cytogen Corporation 2EUSA Pharma Completes Acquisition Of Cytogen Corporation 3Arena Pharmaceuticals to Present at the Bank of America 2008 Healthcare Conference 2Arena Pharmaceuticals to Present at the Bank of America 2008 Healthcare Conference 3
Porcine Coronary Artery Smooth Muscle Cells (PCASMC) (>500,000 cells)...
... T4 DNA Ligase catalyzes the joining of ... and the 3´-hydroxyl groups of adjacent nucleotides ... (1). The enzyme has also been shown ... either a DNA or RNA strand in ...
... Chain MAP1A and MAP1B are microtubule-associated proteins ... components of the cytoskeleton. MAP1A and MAP1B each ... light chain subunits. The protein encoded by this ... and can associate with either MAP1A or MAP1B. ...
PC based system for advanced chemifluorescent, chemiluminescent, fluorescent and colorimetric, microarray and microscope imaging and analysis....
Biology Products: