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:6/17/2015)... Deutschland und GERMANTOWN, Maryland , June ... ®   Produktlinie mit DNA-Tests verbessert den ... (NASDAQ: QGEN ; Frankfurt Prime Standard: QIA) hat ... STR-Testkits der Produktlinie Investigator ® ... Markt eingeführt. Die neuen Kits zur Erstellung genetischer Fingerabdrücke ...
(Date:6/17/2015)... , June 17, 2015  Crossmatch™, a ... announced that its U.are.U ® 4500 fingerprint ... Eateries, Inc., a San ... chain, to increase security, improve accountability and reduce ... enable instant, non-repudiable identity confirmation for employee sign ...
(Date:6/16/2015)... , June 16, 2015 Fingerprint Cards ... fingerprint sensors in the company,s portfolio from one of its ... planned to mainly take place during the third quarter 2015. ... Asia . Jörgen Lantto, CEO of ...   the   growing interest from smartphone OEMs in integrating ...
Breaking Biology News(10 mins):QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 2QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 3QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 4QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 5QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 6Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2
... battle against insect pests, new research indicates that it ... A group of Rockefeller University scientists who had previously ... smell in fruit flies now shows that this gene's ... insect species. , Research by Leslie Vosshall's laboratory had ...
... Researchers at the University of Bath have won a £261,000 ... of a designer drug that could stop influenza and some ... the grant comes at a time when fears are rising ... thousands of people. , Professor Ian Williams, of the Department ...
... researchers present a “cautionary tale?about what may go wrong when ... test for cancer. , In the February 16 issue of ... University of Texas M. D. Anderson Cancer Center detail why ... a small sample of blood is unlikely to lead to ...
Cached Biology News:Ancient olfaction protein is shared by many bugs, offering new pest control target 2Computers to be used to find blueprint for new influenza drug 2New species from old data 2New species from old data 3
(Date:7/6/2015)... ... July 06, 2015 , ... ... (WPI), offers new insights into how virulent fungi adapt through genetic modifications to ... how that battle leaves them temporarily weakened. These insights may provide clues to ...
(Date:7/6/2015)... ... July 06, 2015 , ... Discovery of new biomarkers for ... drivers of the global molecular diagnostics market. BCC Research reveals in its new ... companion diagnostic tests will increase demand for inexpensive and accurate tests for genetic ...
(Date:7/6/2015)... 2015 ImmunoCellular Therapeutics, Ltd. ("ImmunoCellular") (NYSE MKT: ... Novella Clinical (Novella), to conduct the phase ... diagnosed glioblastoma. Novella is a full-service, global clinical research ... mid-sized oncology companies. The ICT-107 phase 3 trial will ... Europe and Canada ...
(Date:7/3/2015)... ... July 03, 2015 , ... The Alexander Group, a 30-year ... industries alike-- typically known for its consummate professionalism-- embarks each year in a ... break from their day jobs. , "Our motto has always been work hard ...
Breaking Biology Technology:Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 2Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 3Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 4Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 2Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 3ImmunoCellular Therapeutics Establishes Agreement with Novella Clinical to Conduct ICT-107 Phase 3 Registration Trial in Glioblastoma 2The Alexander Group Declares Their Independence with a Bit of Levity 2
... , AMSTERDAM , ... it has signed two commercial manufacturing agreements with an,undisclosed US ... and GMP commercial manufacturing services to,support the commercial launch of ... SynCo has commenced with preparations for the manufacture ...
... , Feb. 1 BioMed Realty Trust, Inc. (NYSE: ... quarter and year ended December 31, 2009 after the market ... D. Gold , Chairman and Chief Executive Officer, and Kent Griffin ... at 10:00 a.m. Pacific Time on Thursday, February 11, ...
... PALO ALTO, Calif. , Feb. 1 Telik, Inc. (Nasdaq: ... overview at the 12th Annual BIO CEO & Investor Conference in ... 3:00 p.m. Eastern time ( 12:00 p.m. Pacific time ).  A ... Telik website, www.telik.com . , Telik, Inc. of Palo Alto, ...
Cached Biology Technology:SynCo Bio Partners Signs New Manufacturing Agreements to Supply the US Market; Securing its Position as a Market Leader in Microbial Biopharmaceutical Contract Production 2BioMed Realty Trust to Report 2009 Fourth Quarter and Year-End Results 2
VACUGENE PUMP 110V, 1 EA. Category: Nucleid Acid Detection Systems....
Rat whole blood (Sprague-Dawley, averaging 7-8 weeks of age, either sex) is collected at the time of slaughter and refrigerated within 6 hours, and processed and frozen within 24 hours. The serum is ...
... BMH 71-18 mutS and ES1301 mutS ... coli. Use of these strains prevents repair ... leading to high mutation efficiencies and making ... GeneEditor and Altered Sites II Mutagenesis Systems. ...
propidium iodide *1.0 mg/mL solution in water*...
Biology Products: