Navigation Links
Model sheds light on the chemistry that sparked the origin of life
Date:11/26/2012

Durham, NC The question of how life began on a molecular level has been a longstanding problem in science. However, recent mathematical research sheds light on a possible mechanism by which life may have gotten a foothold in the chemical soup that existed on the early Earth.

Researchers have proposed several competing theories for how life on Earth could have gotten its start, even before the first genes or living cells came to be. Despite differences between various proposed scenarios, one theme they all have in common is a network of molecules that have the ability to work together to jumpstart and speed up their own replication two necessary ingredients for life. However, many researchers find it hard to imagine how such a molecular network could have formed spontaneously with no precursors from the chemical environment of early Earth.

"Some say it's equivalent to a tornado blowing through a junkyard and assembling the random pieces of metal and plastic into a Boeing 747," said co-author Wim Hordijk, a visiting scientist at the National Evolutionary Synthesis Center in Durham, North Carolina, and a participant in an astrobiology meeting held there last year.

In a previous study published in 2004, Hordijk and colleague Mike Steel of the University of Canterbury in New Zealand used a mathematical model of simple chemical reactions to show that such networks might form more easily than many researchers thought. Indeed, biochemists have recently created such networks in the lab.

In a new study published this year, Hordijk, Steel, and colleague Stuart Kauffman of the University of Vermont analyzed the structure of the networks in their mathematical models and found a plausible mechanism by which they could have evolved to produce the building blocks of life we know today, such as cell membranes or nucleic acids.

"It turns out that if you look at the structure of the networks of molecules [in our models], very ofte
'/>"/>

Contact: Robin Ann Smith
rsmith@nescent.org
919-668-4544
National Evolutionary Synthesis Center (NESCent)
Source:Eurekalert

Page: 1 2

Related biology news :

1. New model reveals how huddling penguins share heat fairly
2. Neurons made from stem cells drive brain activity after transplantation in laboratory model
3. New health-economic model shows benefits of boosting dietary calcium intake
4. Cells from skin create model of blinding eye disease
5. Reducing radiation: Heart Institute model shows hope for new standards worldwide
6. Oxidative stress and altered gene expression occurs in a metabolic liver disease model
7. National Heart Centre Singapore develops worlds first human heart cell model
8. New model could help fill data gap in predicting historical air pollution exposure
9. Research finds heart remodeling rapidly follows cardiac injury
10. Coral scientists use new model to find where corals are most likely to survive climate change
11. Early menopause: A genetic mouse model of human primary ovarian insufficiency
Post Your Comments:
*Name:
*Comment:
*Email:
(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)... of kidney injury related to the use of hydroxyethyl ... HES molecules, according to a report in Anesthesia ... Research Society (IARS). , The "total mass of HES ... human renal proximal tubule cells (PTCs), concludes the laboratory ... Hospital Wrzburg, Austria. Other factorssuch as differences in ...
(Date:7/11/2014)... is evidence that under the normal circumstances, ... development, maintain neuronal environment, and exhibit therapeutic ... neurodegenerative disease. Previous studies have found that ... after chemical induction have reduced viability, which ... Prof. Xiaodong Yuan, Kailuan General Hospital, Hebei ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... from the University of Alberta, the Yerkes National Primate ... Center has successfully transplanted insulin-producing neonatal porcine islet cells ... promising intermediate solution to the critical supply problem in ... U of A and Emory, along with recent work ...
... Researchers at the University of Pennsylvania School of Medicine ... the host cell's ability to survive by binding to ... enzyme from activating the cell's immune system. These findings ... imply new approaches to treating AIDS, inflammatory diseases such ...
... cartilage (cartilage covering the ends of bones where they ... or illness, and can lead to degenerative disease. Treatments ... achieved limited results, but currently there is no method ... engineering involving the delivery of therapeutic proteins to the ...
Cached Biology News:Diabetes researchers pioneer islet cell xenotransplantation in primate studies 2HIV accessory protein disables host immunity via receptor-protein intermediary 2Stem cells from muscles can repair cartilage 2Stem cells from muscles can repair cartilage 3
(Date:7/11/2014)... (PRWEB) July 11, 2014 Cayenne ... company specializing in the soft tissue reconstruction segment, ... Anchor System for surgeries involving the shoulder and ... through a novel, inserter-controlled deployment method. The unique ... partial deployment, anchor pull-out, or anchor displacement (also ...
(Date:7/10/2014)... Mass. (PRWEB) July 10, 2014 Terascala, ... today announced that Alan Swahn, a former vice president ... executive team as vice president of marketing. Terascala’s software ... Dell and NetApp create the highest performance and most ... been appointed to guide Terascala’s channel expansion and broaden ...
(Date:7/10/2014)... 2014 Senior supply chain management executives ... addressed the challenges of “Reducing Cost, Lead Time, & ... strategic sourcing. Describing the partnership of the Bio Supply ... Management Institute ( SCMI) of the University of ... at the Kroc Institute of Peace and Justice in ...
(Date:7/10/2014)... July 10, 2014 Research and Markets ... the "International Photonic Integrated Circuit (Monolithic Integration, ... 2019" report to their offering. ... concept of photonic integration traces its roots in ... promise of photonic integration went unexplored and unfulfilled ...
Breaking Biology Technology:Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3Terascala Expands Executive Team 2Terascala Expands Executive Team 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2
... (Pink Sheets: BSTC.PK) today announced that it sold,200,000 ... private placement,offering to an investment fund, at a ... to the Company of $2,100,000., About BioSpecifics ... biopharmaceutical company that has,developed and licensed injectable collagenase ...
... is seeking nominations for the Third Annual Greater ... March 18, 2008. Those,interested in nominating a company ... The four award categories are: Entrepreneurial, Best ... Award. Nominators will,be asked to submit documentation and ...
... multiplexing module, SANTA ROSA, Calif., Jan. 14 ... provider of optical components for industrial,applications, is to ... technology. The compact LED combining module, which utilizes,proprietary ... medical instrumentation. The ZoroLight LED module will be,on ...
Cached Biology Technology:Bookham to Enter Biomedical Illumination Market 2Bookham to Enter Biomedical Illumination Market 3
Caliper offers a wide array of standard LabChip products designed to be used in combination with our AMS 90 and LabChip 3000 microfluidic platforms....
... provide fast and reliable automation for ... drug development laboratories. Staccato Mini-Workstations offer ... automate basic liquid handling and material ... with either Caliper's time proven CLARA™ ...
Caliper offers a wide array of standard LabChip products designed to be used in combination with our AMS 90 and LabChip 3000 microfluidic platforms....
... Fermentation System to achieve high ... and maximum information output 4 ... precision with small-scale requirements provides users ... with E.coli, Pichia pastoris, yeast, fungi ...
Biology Products: