Navigation Links
Scientists rebuild ancient proteins to reveal primordial Earth's temperature
Date:2/7/2008

GAINESVILLE, Fla. Using the genetic equivalent of an ancient thermometer, a team of scientists has determined that the Earth endured a massive cooling period between 500 million and 3.5 billion years ago.

Reporting today (Feb. 7) in the journal Nature, researchers from the University of Florida, the Foundation for Applied Molecular Evolution and the biotechnology company DNA2.0 describe how they reconstructed proteins from ancient bacteria to measure the Earths temperature over the ages.

By studying proteins encoded by these primordial genes, we are able to infer information about the environmental conditions of the early Earth, said Eric Gaucher, Ph.D., president of scientific research at the Foundation for Applied Molecular Evolution in Gainesville and the studys lead scientist. Genes evolve to adapt to the environmental conditions in which an organism lives. Resurrecting these since long-extinct genes gives us the opportunity to analyze and dissect the ancient surroundings that have been recorded in the gene sequence. The genes essentially behave as dynamic fossils.

The team wanted to measure Earths temperature billions of years ago to learn more about life on Earth during the Precambrian period. But instead of taking the traditional route analyzing rock formations or measuring isotopes in fossils they opted to do what they knew best: protein reconstruction.

Weve analyzed the temperature stability of proteins inside organisms that were around during those times, said Omjoy Ganesh, Ph.D., a structural biologist in the UF College of Medicines department of biochemistry and molecular biology. The ancient oceans were warmer. For ocean organisms living during that time to survive, the proteins within them had to be stable at high temperatures.

After scanning multiple databases, the scientists struck gold with a protein called elongation factor, which helps bacteria string together amino acids to form other protein
'/>"/>

Contact: Ann Griswold
anngriswold@gmail.com
352-273-5819
University of Florida
Source:Eurekalert

Page: 1 2

Related biology news :

1. UK scientists working to help cut ID theft
2. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
3. Comet probes reveal evidence of origin of life, scientists claim
4. Scientists link fragile X tremor/ataxia syndrome to binding protein in RNA
5. Male elephants get photo IDs from scientists
6. Scientists retrace evolution with first atomic structure of an ancient protein
7. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
8. Carnegie Mellon scientists develop nanogels that enable controlled delivery of carbohydrate drugs
9. Clemson scientists shed light on molecules in living cells
10. Scientists tackle mystery mountain illness
11. T. rex quicker than Becks, say scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/24/2015)... , June 24, 2015  Synaptics Inc. ... human interface solutions, today announced that Sharp has ... provide secure authentication for its latest flagship smartphone ... more than 200 million shipments of its fingerprint ... reinforces Synaptics, strength, scalability and leadership in the ...
(Date:6/23/2015)...   MedNet Solutions , an innovative SaaS-based ... of clinical research, is pleased to announce that ... company,s intuitive, flexible and affordable cloud-based eClinical technology ... Award by the American Business Awards (SM) ... The American Business Awards are considered the nation,s ...
(Date:6/23/2015)... June 23, 2015  Crossmatch™, a leading ... today announced enhanced functionality of its DigitalPersona ... The enhancements build on the native flexibility ... Altus platform and provide expanded mobile credential ... In today,s environment of increasing cyber-attacks and ...
Breaking Biology News(10 mins):Synaptics Brings Natural ID Technology to Sharp's Newest Flagship Smartphone 2MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2Crossmatch Releases Enhanced DigitalPersona Altus Advanced Authentication Functionality 2
... Rochelle, NY, January 23, 2013-The U.S. Food and Drug Administration ... of medical devices to ensure that any sex differences in ... authors from the FDA report the results of a study ... in PAS in Journal of Women,s Health, a peer-reviewed publication ...
... NEW YORK, NY (January 22, 2014) Columbia University ... matrix metalloproteinase-9 (MMP-9), that appears to play a major ... (ALS), also known as Lou Gehrig,s disease. The findings, ... motor neurons are affected by the disease and identify ...
... This 2014 FASEB Science Research Conference focuses on ... mechanisms controlling normal and abnormal functions of muscle-resident ... and muscle degenerative disease. Eight plenary ... the following major themes: transcriptional and posttranscriptional regulation ...
Cached Biology News:Study identifies gene tied to motor neuron loss in ALS 2Study identifies gene tied to motor neuron loss in ALS 3
(Date:7/2/2015)... , ... July 03, 2015 , ... Cuvettes have been used in countless labs for ... to find the cuvette they needed. As expected, this was a daunting and tiring ... wrong part because they were not able to navigate the complex catalog structure. , Now ...
(Date:7/2/2015)... Amici Procurement Migrates to the ... Procurement has chosen Microsoft Cloud Solution Provider iomart ... 365.      (Logo: http://photos.prnewswire.com/prnh/20121126/579634) , ... in the bio-tech sector with a unique procurement service, ... to help them obtain best value. Its IT platform ...
(Date:7/1/2015)... ... , ... It is now possible to separate two common disorders: post-traumatic stress ... (SPECT) according to researchers from Amen Clinics, UCLA, Thomas Jefferson University, and University ... believed to be the largest brain imaging study ever, will be published on July ...
(Date:7/1/2015)... ... ... The next-generation sequencing (NGS) clinical market is poised for huge growth as ... Research reveals in its new report that the market drivers of this vibrant industry ... for better diagnostics as part of a molecular diagnostics trend. , The global market ...
Breaking Biology Technology:New Cuvette E-Commerce Website Launched by FireflySci 2Biotech Procurement Company Moves to Office 365 with iomart 2Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 2Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 3Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 4NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 3
... Wis. - BEST BioDiesel, LLC has received ... Natural Resources for an eight million gallon fuel production ... BioDiesel Cashton and be a wholly owned subsidiary of BEST ... located on a six-acre site in the Cashton Green Energy ...
... Partners Midwest, a venture capital arm of Boston's Peak ... initial goal for raising capital and is ready to scout ... fund, which was to be capped at $50 million, has ... an initial close, according to Michael McNally, chairman and CEO ...
... West Allis, Wis. - In the wake of financial ... Merge Healthcare has added another new face to ... through Georgia. , ,Merge announced the hiring of Greg Wilson, ... . of Atlanta, as its new vice president of finance. ...
Cached Biology Technology:Avolte Venture Partners reaches capital goal 2
... CLS number is a ... to easily match Cornings ... no availability yet, please ... Sigma-Aldrich number (Z71,381-3) or ...
Excellent safety and durability., Remote control can be easily operated in your hand., Constant voltage control with 2 sets of terminals., Precise and durable circuit design. ...
Gel Loading Buffer contains a precipitant to ensure that the samples sink into the wells and a tracking dye to allow the user to follow the progress of electrophoresis....
Rabbit anti Xanthine Oxidase Xanthine Oxidase, Bovine Buttermilk...
Biology Products: