Navigation Links
Reconstructed ancient ocean reveals secrets about the origin of life
Date:4/25/2014

e essential and most centrally placed reaction cascades of metabolism," says Dr. Markus Ralser, Group Leader at the Department of Biochemistry at the University of Cambridge and the National Institute for Medical Research. "In our reconstructed version of the ancient Archean ocean, these metabolic reactions were particularly sensitive to the presence of ferrous iron that helped catalyze many of the chemical reactions that we observed." From the analysis of early oceanic sediments, geoscientists such as Alexandra V. Turchyn from the Department of Earth Sciences at the University of Cambridge, one of the co-authors of the study, concluded that soluble forms of iron were one of the most frequently found molecules in the prebiotic oceans.

The scientists reconstructed the conditions of this prebiotic sea based on the composition of various early sediments described in the scientific literature. The different metabolites were incubated at high temperatures (50-90oC) similar to what might be expected close to a hydrothermal vent of an oceanic volcano, a temperature that would not support the activity of conventional protein enzymes. The chemical products were separated and analyzed by liquid chromatography tandem mass spectrometry.

Some of the observed reactions could also take place in water but were accelerated by the presence of metals that served as catalysts. "In the presence of iron and other compounds found in the oceanic sediments, 29 metabolic-like chemical reactions were observed, including those that produce some of the essential chemicals of metabolism, for example precursors of the building blocks of proteins or RNA," says Ralser. "These results indicate that the basic architecture of the modern metabolic network could have originated from the chemical and physical constraints that existed on the prebiotic Earth."

The detection of one of the metabolites, ribose 5-phosphate, in the reaction mixtures is particularly noteworthy. Its av
'/>"/>

Contact: Barry Whyte
barry.whyte@embo.org
European Molecular Biology Organization
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Ancient DNA offers clues to how barnyard chickens came to be
2. Ancient sea-levels give new clues on ice ages
3. Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast
4. Study: Black carbon is ancient by the time it reaches seafloor
5. Ancient shrimp-like animals had modern hearts and blood vessels
6. GSA Bulletin: Rock avalanches, ancient weather, astronomical clocks, anoxia, and volcanism
7. Ancient African cattle first domesticated in Middle East, MU study reveals
8. Ancient clam gardens nurture food security
9. Ancient food webs developed modern structure soon after mass extinction
10. Ancient DNA shows moa were fine until humans arrived
11. Climate of Genghis Khans ancient time extends long shadow over Asia of today
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Reconstructed ancient ocean reveals secrets about the origin of life
(Date:11/15/2014)... -- While we may still be a few years away from ... to gain instant access to all that ailed his patients, ... tablets for monitoring and measuring our health are cropping up ... a tad Orwellian to some, but a new survey suggests ... opportunities into their healthcare regime. These are some ...
(Date:11/10/2014)... shelves in early 2010, and people have used them ... be tossed into a washing machine without ever having ... though, has come with risks for young children. , ... found that from 2012 through 2013, U.S. poison control ... years of age swallowing, inhaling, or otherwise being exposed ...
(Date:11/7/2014)... Leading Biometric companies aim to provide ... online transactions.  Companies in focus today are: NXT-ID, Inc. (NASDAQ: ... BABA ), Google Inc. (NASDAQ: GOOG ), Microsoft ... EBAY ) and MasterCard Inc. (NYSE: MA) ... biometric authentication company focused on the growing mobile commerce is ...
Breaking Biology News(10 mins):Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4Study finds laundry detergent pods, serious poisoning risk for children 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6
... Athens, Ga. For more than a century, the ... it comes to human health. As it turns out, X-rays ... and a new approach -- just published by researchers at ... can learn using the technique. One of the primary ...
... a recent study by the University of Santiago de Compostela ... unexpected increase in hydrocarbon levels along the coast of Galicia ... years by works to remove the wreck, pollution levels began ... numerous forest fires., On 19th November 2002 the oil tanker ...
... only become a science in the past 25 years, ... with widespread international collaboration, broad disciplinary composition and wide ... National Laboratory and Indiana University. The findings, published today ... Sciences, were assembled from a review of 20,000 ...
Cached Biology News:New strategy could lead to dose reduction in X-ray imaging 2New strategy could lead to dose reduction in X-ray imaging 3Hydrocarbon pollution along the coast of Galicia shot up five years after the Prestige oil spill 2After 25 years, sustainability is a growing science that's here to stay 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... Medarex, Inc.,(Nasdaq: MEDX ) announced today that it ... Emerging Growth Conference in New York City on Tuesday,September ... will be,webcast live and will be available for replay ... the Medarex website via the Internet at, http://www.medarex.com ...
... Leading scientists,from around the world will meet in ... producing life-saving vaccines and,antibodies. More than 125 scientists ... for New Vaccines II: Focus on Respiratory Virus,Diseases" ... The international,scientific workshop is being organized by the ...
... (Amex: PTN ) stated today that the ... Technologies, Inc. (Amex: CTT ),relating to a ... was,false and misleading. The press release issued ... with Palatin Technologies." However, the,Notice of Termination sent ...
Cached Biology Technology:International Scientific Workshop Focuses on New Methods for Vaccine and Antibody Development 2Palatin Technologies Refutes Competitive Technologies Contention of Material Breach 2
... cassette is designed to allow ampicillin selection ... gb2 driving the gene for ampicillin resistance ... Em7 promoter. It mediates higher transcription efficiency ... synthetic polyadenylation signal terminates the ampicillin expression. ...
... cassette is designed to allow ampicillin ... promoter gb2 driving the gene for ampicillin ... the Em7 promoter. It mediates higher transcription ... A synthetic polyadenylation signal terminates the ampicillin ...
... is designed for the fast and simple ... at any position (for the generation of ... is designed to allow neomycin / kanamycin ... combines a prokaryotic promoter (gb2) for expression ...
... Pyronin Y is most widely used ... selectively and differentially stain nucleic acids ... dichromatic dye solution, Pyronin Y stains ... DNA green. Chem comp: ...
Biology Products: