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

HEIDELBERG, 25 April 2014 Researchers from the University of Cambridge have published details about how the first organisms on Earth could have become metabolically active. The results, which are reported in the journal Molecular Systems Biology, permit scientists to speculate how primitive cells learned to synthesize their organic components the molecules that form RNA, lipids and amino acids. The findings also suggest an order for the sequence of events that led to the origin of life.

A reconstruction of Earth's earliest ocean in the laboratory revealed the spontaneous occurrence of the chemical reactions used by modern cells to synthesize many of the crucial organic molecules of metabolism. Previously, it was assumed that these reactions were carried out in modern cells by metabolic enzymes, highly complex molecular machines that came into existence during the evolution of modern organisms.

Almost 4 billion years ago life on Earth began in iron-rich oceans that dominated the surface of the planet. An open question for scientists is when and how cellular metabolism, the network of chemical reactions necessary to produce nucleic acids, amino acids and lipids, the building blocks of life, appeared on the scene.

The observed chemical reactions occurred in the absence of enzymes but were made possible by the chemical molecules found in the Archean sea. Finding a series of reactions that resembles the "core of cellular metabolism" suggests that metabolism predates the origin of life. This implies that, at least initially, metabolism may not have been shaped by evolution but by molecules like RNA formed through the chemical conditions that prevailed in the earliest oceans.

"Our results demonstrate that the conditions and molecules found in the Earth's ancient oceans assisted and accelerated the interconversion of metabolites that in modern organisms make up glycolysis and the pentose-phosphate pathways, two of th
'/>"/>

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:12/17/2014)... NEW YORK , Dec. 15, 2014  HITLAB SM ... Practices (GCP) audit to confirm its adherence to current ... enables HITLAB to conduct regulated smart device and smart ... safety and research quality. "HITLAB is determined ...
(Date:12/11/2014)... Markets , http://photos.prnewswire.com/prnh/20130307/600769 ... addition of the "Biometrics Market in the APAC ... One major trend emerging in this market is advances ... important to upgrade biometric solutions to the latest standard ...
(Date:12/10/2014)... , Dec. 9, 2014  Valencell, a leader in ... seeing a staggering demand from its licensees for highly ... revealed, is not solely coming from fitness and health ... "A wearable is only as useful as ...
Breaking Biology News(10 mins):HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... research infrastructures (BMS ESFRIs) by investing in a national ... the EU level initiatives in developing biobanking (BBMRI), bioinformatics ... investment follows the 3-year pan-European planning phase, and a ... 2010. The approach that Finland has selected ...
... northeastern United States are faced with challenges ranging from ... load. These and other problems create barriers to effective ... production (OFP) of apples, limiting growers, access to potentially ... HortScience , Cornell University scientists report on a systems-based ...
... to lessen the environmental impact of urbanization, green roofs ... benefits. A new study from researchers at Colorado State ... HortScience evaluated six plant species to determine ... in Colorado. Five plants that survived the 2-year experiment ...
Cached Biology News:Finland initiates European biomedical research infrastructures construction with $6.7 million for 2011 2Finland initiates European biomedical research infrastructures construction with $6.7 million for 2011 3Integrated, organic production systems evaluated for 'liberty' apple 25 standout species for extensive green roofs 2
(Date:1/22/2015)... SAN DIEGO , Jan. 22, 2015   ... company, and Sequenom, Inc. (NASDAQ: SQNM ... a development agreement for next generation noninvasive prenatal ... Cypher,s genome interpretation technology, called Mantis™, to advance ...
(Date:1/22/2015)... 22, 2015  Derma Sciences, Inc. (Nasdaq: ... advanced wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, ... added to the Premier, Inc. Regenerative Skin Grafting ... the AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue ...
(Date:12/24/2014)... and NEW YORK , Dec. 24, ... company advancing patient care in critical areas, announced the closing ... stock, and warrants to purchase up to an aggregate 3,500,000 ... per share and $.01 per warrant.  The warrants have a ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 “Preparative ... Gas, HPLC, Flash), Consumables (Columns, Solvents, Buffers, Valves, ... Food & Agriculture) - Forecasts to 2019” provides ... challenges, opportunities, current market trends, and strategies impacting ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4
... wooden statue inside their walls, and woke up to ... have been examining gift horses carefully. There's generally nothing ... ,The state Building Commission will define what's within reason ... the first phase of the Wisconsin Institutes for Discovery, ...
... Third Wave Technologies, Inc. has added two ... that helped litigate Third Wave's successful patent infringement suit ... it would host a conference call on Tuesday, April ... earnings. , ,Third Wave, which develops and markets molecular ...
... Wis. Wisconsin's Building Commission approved a $150 ... planned Institutes for Discovery on a block of the ... ,Governor Jim Doyle chairs the commission, which voted 7-1 ... groundbreaking in December 2007 and finish in 2009. , ...
Cached Biology Technology:Seven good reasons to approve the Institutes for Discovery 2Seven good reasons to approve the Institutes for Discovery 3Third Wave announces two senior management appointments 2
... with sequence siTrio siRNA --- a cocktail ... gene of interestis our most popular product. The ... knockdown of your target gene when used under ... confirmation of optimal transfection with one of B-Bridges ...
... siTrio siRNA --- a cocktail of ... gene of interestis our most popular product. ... than 75% knockdown of your target gene ... siRNA for transfection and confirmation of optimal ...
... siRNA --- a cocktail of 3 siRNAs ... interestis our most popular product. The siTrio ... knockdown of your target gene when used ... transfection and confirmation of optimal transfection with ...
... of 3 siRNAs specifically targeted to your ... product. The siTrio reagent guarantees you get ... gene when used under standard conditions (100 ... optimal transfection with one of B-Bridges controls). ...
Biology Products: