Navigation Links
New research rejects 80-year theory of 'primordial soup' as the origin of life
Date:2/2/2010

ical gradients across a honeycomb of microscopic natural caverns at hydrothermal vents. These catalytic cells generated lipids, proteins and nucleotides giving rise to the first true cells.

The team focused on ideas pioneered by geochemist Michael J. Russell, on alkaline deep sea vents, which produce chemical gradients very similar to those used by almost all living organisms today - a gradient of protons over a membrane. Early organisms likely exploited these gradients through a process called chemiosmosis, in which the proton gradient is used to drive synthesis of the universal energy currency, ATP, or simpler equivalents. Later on cells evolved to generate their own proton gradient by way of electron transfer from a donor to an acceptor. The team argue that the first donor was hydrogen and the first acceptor was CO2.

"Modern living cells have inherited the same size of proton gradient, and, crucially, the same orientation positive outside and negative inside as the inorganic vesicles from which they arose" said co-author John Allen, a biochemist at Queen Mary, University of London.

"Thermodynamic constraints mean that chemiosmosis is strictly necessary for carbon and energy metabolism in all organisms that grow from simple chemical ingredients [autotrophy] today, and presumably the first free-living cells," said Lane. "Here we consider how the earliest cells might have harnessed a geochemically created force and then learned to make their own."

This was a vital transition, as chemiosmosis is the only mechanism by which organisms could escape from the vents. "The reason that all organisms are chemiosmotic today is simply that they inherited it from the very time and place that the first cells evolved and they could not have evolved without it," said Martin.

"Far from being too complex to have powered early life, it is nearly impossible to see how life could have begun without chemiosmosis", concluded Lane. "It
'/>"/>

Contact: Ben Norman
Benorman@wiley.com
44-124-377-0375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Research at Marshall University may lead to new ways to transport and manipulate molecules
2. Ability to navigate may be linked to genes, researcher says
3. Scripps Research scientists create new way to screen libraries of 10 million or more compounds
4. MSU researcher identifies cell mechanism leading to diabetic blindness
5. Boston University School of Medicine researcher awarded the 2010 Avanti Award in Lipids
6. Case Western Reserve University works with Johnson & Johnson Services Inc. on research grant
7. National Jewish Health researchers discover how virulent bacteria
8. Epigenetics could help researchers determine any risks associated with low-dose radiation
9. University of the Basque Country researchers decode transcriptome for gray mullet
10. Advances in cancer detection research by Virginia Tech engineer featured in British magazine
11. Research breakthrough could lead to new treatment for malaria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... JULY 2014 With thirty days to go and ... FEBS-EMBO 2014 Conference are well underway. The event, a ... (FEBS), EMBO, and the French Society for Biochemistry and ... August to Thursday, 4 September at the Palais des ... is the largest meeting for the life sciences in ...
(Date:7/29/2014)... new book that brings together two of the major ... profile of insect fossils through stunning photographs and unique ... James E Jepson, details the incredible preservation and diversity ... scene for what these remarkable fossils can tell us ... future of our planet. Like the mosquito in Jurassic ...
(Date:7/29/2014)... sperm, bacteria and algae, propel themselves using whip-like ... of a millimetre long, function like tiny oars, ... called cilia are found on the surfaces of ... moving liquids over the cell. , Flagella ... and expel pathogens from our airways, they establish ...
Breaking Biology News(10 mins):Counting down to FEBS-EMBO 2014 in Paris, France 2Unique images bring fossil insects back to life 2Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3
... in German . ... More precise tests may allow allergy sufferers more freedom of food ... out by the Helmholtz Centre for Environmental Research (UFZ), the University ... examined patients with a Nile perch allergy. Being allergic to Nile ...
... - Chinese researchers from Rui-Jin Hospital, Shanghai Jiao-Tong ... identified the recurrent T372R mutation in the transcription ... insulinoma oncogenesis, implicating a potential marker for the ... (PNETs). The latest study was published online in ...
... African-American women who get breast cancer often get more aggressive ... women. But a Georgia State University researcher has found ... which would let their doctors customize their treatment. Ritu ... called HSET. Earlier studies have linked elevated levels of HSET ...
Cached Biology News:Each food fish can cause specific allergies 2Each food fish can cause specific allergies 3Scientists identified T372R mutation as potential target for diagnosis and treatment of insulinoma 2
(Date:7/29/2014)... LOUIS , July 29, 2014  Sigma-Aldrich Corporation ... water and energy use, increased its investment in Green ... service around the world last year, the Company announced ... What if Science Changed the World? ... earned several honors for being a responsible corporate citizen, ...
(Date:7/29/2014)... -- United Therapeutics Corporation (NASDAQ: UTHR ... the second quarter ended June 30, 2014. ... medicines are reaching increasing numbers of patients ... Martine Rothblatt, Ph.D., United Therapeutics, Chairman and ... quarter of our extended-release tablet called Orenitram ...
(Date:7/29/2014)... July 29, 2014 Eppendorf Centrifuge ... product selection. Eppendorf 5427 R is geared towards high-end ... – it is targeted towards work requiring high sample ... R as it compliments their extensive 16, 48, and ... of microcentrifuge tubes, PCR tubes, PCR strip tubes, and ...
(Date:7/29/2014)... July 29, 2014 White papers ... and cloud based eClinical technologies, have been published by ... These follow a long line of white papers by ... including Life Science Leader, Pharmaceutical Online, and OpenHealthNews. , ... a paper by CTO Marc Desgrousilliers, 'The Five ...
Breaking Biology Technology:Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 2Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 4United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 5United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 6United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 7United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 8United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 9United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 10United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 11United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 12United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 13International Pipette Distributor, Pipette.com Announces the Addition of the Eppendorf Centrifuge 5427 R to Their Product Portfolio 2Clinovo White Papers Published in Summer 2014 Editions of Leading Medical Device & Pharmaceutical Publications 2Clinovo White Papers Published in Summer 2014 Editions of Leading Medical Device & Pharmaceutical Publications 3
... ... Institute Chooses Genedata for Data Analysis in Biomarker Project , ... Basel, Switzerland (PRWEB) October 19, 2009 -- ... sciences, today announced a collaboration with the Institute of Experimental Medicine, Academy of Sciences ...
... Pa., Oct. 19 Quotient Biodiagnostics, Inc., today announced ... approved its biologics license application (BLA) for the first ... diagnostics. These products are for use by blood ... screen blood. , Quotient Biodiagnostics was formed earlier ...
... UCB today announced data that showed rapid and ... of rheumatoid arthritis (RA) as early as the first ... (seen at week 24) following treatment with Cimzia® (certolizumab ... 100 weeks. Cimzia® is approved for the treatment of ...
Cached Biology Technology:Genedata and the Institute of Experimental Medicine, Academy of Sciences of the Czech Republic Collaborate on Asthma Bronchiale Project 2Genedata and the Institute of Experimental Medicine, Academy of Sciences of the Czech Republic Collaborate on Asthma Bronchiale Project 3Genedata and the Institute of Experimental Medicine, Academy of Sciences of the Czech Republic Collaborate on Asthma Bronchiale Project 4Quotient Biodiagnostics Receives U.S. Food & Drug Administration Clearance To Enter U.S. Transfusion Diagnostics Market 2UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 2UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 3UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 4UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 5UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 6UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 7UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 8UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 9UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 10UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 11UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 12
... system, 100-240 V, is an optional module ... automates delivery of up to 20 L ... reader. The HTF system automatically draws sheath ... to constantly maintain a reservoir of pressurized ...
... virtually every research laboratory, the revolutionary Luminex ... accurately, inexpensively and in real time enhancing ... analysis system includes the Luminex 100, the ... xMAP technology which enables you to simultaneously ...
... This gradient system is ideal for routine ... the highly sensitive Adept CE 4201 UV-Visible variable ... phase, is provided by the two highly ... Adept CE 4100 solvent delivery pumps., Chromatograms may ...
... Human A549 cells were cultured in Ham's F12K ... the log phase of growth. In order to ... were fixed in acetone-methanol. The cells are arrayed ... with each wells surface specifically treated to enhance ...
Biology Products: