Navigation Links
Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

In a venture once thought to lie outside the reach of science, researchers from Harvard Medical School and Beth Israel Deaconess Medical Center have captured and sequenced tiny pieces of collagen protein from a 68 million-year-old Tyrannosaurus rex. The protein fragments—seven in all—appear to most closely match amino acid sequences found in collagen of present day chickens, lending support to a recent and still controversial proposal that birds and dinosaurs are evolutionarily related. The HMS and BIDMC researchers, working with scientists at North Carolina State University, report their findings in the April 13 Science.

"Most people believe that birds evolved from dinosaurs, but that’s all based on the architecture of the bones," said John Asara, director of the mass spectrometry core facility at Beth Israel Deaconess Medical School and HMS instructor in pathology, who sequenced the protein fragments over the course of a year and a half using highly sensitive mass spectrometry methods. "This allows you to get the chance to say, ‘Wait, they really are related because their sequences are related.?We didn’t get enough sequences to definitively say that, but what sequences we got support that idea."

In another study appearing in the same issue of Science, Mary Schweitzer, of North Carolina State University, and colleagues found that extracts of T. rex bone reacted with antibodies to chicken collagen, further suggesting the presence of birdlike protein in the dinosaur bones.

The mere existence of such exceedingly ancient protein defies a longstanding assumption. When an animal dies, protein immediately begins to degrade and, in the case of fossils, is slowly replaced by mineral. This substitution process was thought to be complete by one million years.

"For centuries it was believed that the process of fossilization destroyed any original material, consequently no one looked carefully at really old bones," said Schweitzer, who is al
'"/>

Source:Harvard Medical School


Page: 1 2 3 4

Related biology news :

1. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
2. Protein discovery could unlock the secret to better TB treatment
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. An HIV Protein Plays a Surprising Role in Gene Activation
5. Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease
6. New SARS Protein Linked To Important Cell Doorway
7. The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures
8. PANTHER Protein Classification System Database 5.0
9. Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimers, Parkinsons Disease
10. Newly Discovered Compound Blocks Known Cancer-Causing Protein
11. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Protein fragments sequenced million year old Tyrannosaurus rex

(Date:7/11/2014)... from the Max Planck Institute for Medical Research in ... understanding photosynthesis, the process by which the Earth first ... and which is therefore crucial for all higher forms ... the first direct visualization of a crucial event in ... specific protein complex, photosystem II, splits water into hydrogen ...
(Date:7/11/2014)... transplantation of mesenchymal stem cells can stimulate neurogenesis in ... Alzheimer,s disease (AD) and improve tissue and function injury ... reported on the therapeutic effect of adipose-derived stem cells ... effect on oxidative injury and neurogenesis in the brain ... School of Life Sciences, Tsinghua University, China transplanted ADSCs ...
(Date:7/11/2014)... July 11, 2014 Research and Markets ... Biometrics Technology Market - Industry Analysis Size Share Growth ... offering. http://photos.prnewswire.com/prnh/20130307/600769 ... has created a need for high level security in ... personnel authentication such as username and passwords, tokens etc. ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2International Biometrics Technology Market - Industry Analysis Size Share Growth Trends and Forecast to 2019 2
... SALT LAKE CITY, July 12, 2010 Shifty eyes ... the truth. Now a group of University of Utah researchers ... Educational psychologists John Kircher, Doug Hacker, Anne Cook, Dan ... a promising alternative to the polygraph for lie detection. The ...
... critical U.S. crop expected to help feed livestock and people ... production of clean energy, plant breeders are continually seeking ways ... role corn roots play in this regard, an agricultural engineer ... Urbana-Champaign have teamed up to examine corn root complexity and ...
... Letters , recently published an article highlighting the ... professor in the Mechanical Engineering Department at Stevens ... V Nanogenerator for Mechanical Energy Harvesting Using PZT ... energy harvesting technologies that could potentially power wireless ...
Cached Biology News:'You can't hide your lyin' eyes' 2'You can't hide your lyin' eyes' 3What secrets are stored in the roots of corn plants? 2What secrets are stored in the roots of corn plants? 3Nano Letters publishes Dr. Yong Shi's energy harvesting technology 2
(Date:7/10/2014)... 10, 2014 Unraveling life’s mysteries can ... The Archer Family purchased a DNA test ... ended up with a lifetime of memories, sharing, and ... family members’ DNA genuinely brought the family closer together. ... deeper into genetic history and prior to taking the ...
(Date:7/10/2014)... 10, 2014  Franciscan St. Anthony Health-Crown ... for respiratory monitoring outside the operating room, ... in embracing state-of-the-art patient safety technology. ... breathing and can alert medical caregivers when ... amount of carbon dioxide the patient is ...
(Date:7/10/2014)... 10, 2014   Ceres, Inc . (Nasdaq: ... announced today financial results for the three months ended ... business. Ceres reported that the company and ... this growing season in Brazil, which concluded in June, ... sorghum evaluation areas for part of the growing season. ...
(Date:7/10/2014)... Understanding the basis of psychiatric disorders has been extremely ... increase risk but are insufficient to cause disease. Now ... Cell Press journal Cell Stem Cell describe ... genetic risks interact with other risk factors or environmental ... Their research pinpoints a genetic variant that may predispose ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9New strategy could uncover genes at the root of psychiatric illnesses 2
... young Swiss biotech,enterprise AMVAC AG has gained reinforcement ... renowned vaccine specialists. Prof. Klein, who was,formerly Vice ... will immediately assume directorship of the scientific sector ... has,access to an outstanding network across one of ...
... ... Zingo, ... Inc. (Nasdaq: ANSV ) and Sagent,Pharmaceuticals, Inc., today announced an ... hydrochloride,monohydrate) powder intradermal injection product and will manage U.S.,distribution. Zingo, a ...
... Solstice Neurosciences, Inc.,("Solstice") announced the appointment of Dennis ... will serve as Executive Chairman replacing James,Thomas, who ... since Solstice,was founded in July 2004. Mr. ... to Solstice that will be invaluable in providing ...
Cached Biology Technology:Prof. Michel Klein Becomes Chief Scientific Officer at AMVAC 2Anesiva Signs Co-Promotion and Distribution Agreement With Sagent Pharmaceuticals for Zingo(TM) in U.S. Hospitals 2Anesiva Signs Co-Promotion and Distribution Agreement With Sagent Pharmaceuticals for Zingo(TM) in U.S. Hospitals 3Anesiva Signs Co-Promotion and Distribution Agreement With Sagent Pharmaceuticals for Zingo(TM) in U.S. Hospitals 4Dennis L. Smith Appointed Executive Chairman to Board of Directors of Solstice Neurosciences, Inc. 2
... Labeling Kit with CyScribe GFX Purification ... and purification of Cy3- and Cy5-labeled ... complete cDNA labeling and purification.Flexible and ... performing labeling reactions with either Cy3- ...
... Certified USDA Research Registered OLAW Assured AAALAC ... AALAS Certified Technicians Documentation ... Upon Request Focus CRP is ... your custom immunology service needs. We ...
Homo sapiens toll interacting protein Antigen: Recombinant Protein...
B3-1...
Biology Products: