Navigation Links
Fluid equilibrium in prehistoric organisms sheds light on a turning point in evolution
Date:9/22/2011

nits appear much later in evolution," said Dr. Rossier. "The appearance of the beta subunit is particularly significant because it is required for the function of the sodium pump. Without it, a functional sodium pump cannot be expressed at the cell surface. What is interesting is that it appeared right before the dividing point between unicellular organisms and multicellular organisms."

The team also found homologs of ENaC in a single-celled organism, the Naegleria gruberi. Although N. gruberi is a eukaryote and shares a common ancestor with Metazoans, it is located on a different branch of the eukaryotic family tree, among the Excavates. At first glance it might make sense to assume that both Metazoans and Excavates got their ENaC from their common eukaryotic ancestor, but ENaC is absent in all other branches of the eukaryotic tree.

Dr. Rossier said that although it is possible that the genes for ENaC originated in the common ancestor of eukaryotes and were lost in all branches except the Metazoa and the Excavates, there is another possibility. There could have been a lateral transfer of genes between N. gruberi and a Metazoan ancestor, one that lived between the last common ancestor of all eukaryotes and the first Metazoans.

Whether a Metazoan transferred the genes for ENaC to N. gruberi or the other way around, Dr. Rossier is not sure. Either way, the fact that ENaC gene family appeared just before the emergence of Metazoans suggests it is somehow linked to the development of multi-celled organisms, he said.


'/>"/>
Contact: Donna Krupa
dkrupa@the-aps.org
301-634-7209
American Physiological Society
Source:Eurekalert

Page: 1 2

Related biology news :

1. Kalyon wins Thomas Baron Award in Fluid-Particle Systems
2. Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25
3. Uncultured bacteria found in amniotic fluids of women who experience preterm births
4. GEN reports on growing reliance on microfluidics technology
5. Study: Fluid buildup in lungs is part of the damage done by the flu
6. Amniotic fluid may provide new source of stem cells for future therapies
7. NIST-Cornell team builds worlds first nanofluidic device with complex 3-D surfaces
8. Microfluidic palette may paint clearer picture of biological processes
9. NIST calculations may improve temperature measures for microfluidics
10. Novel NIST connector uses magnets for leak-free microfluidic devices
11. Microfluidic integrated circuit could help enable home diagnostic tests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/17/2014)... regarding Ebola is critical and pertinent for practicing physicians ... outbreak and epidemic. The Journal, Disaster Medicine and ... Ebola Virus and Public Health, to surround the public, ... critical societal moment. , On October 17, the ... . The primer was prepared by Dr. Eric Toner, ...
(Date:10/16/2014)... wages war on the human body. Battles are ... In pancreatic cancer, this stalemate—known as tumor dormancy—can ... malignant, a phenomena that is poorly understood. ... laboratory of Salvatore Torquato, a Professor of Chemistry ... surrounding tumor dormancy and the switch to a ...
(Date:10/16/2014)... cultivated efficiently, they are anything but sustainable: environmental ... cultivation is becoming increasingly evident. Despite their disadvantages, ... are regarded as the sole possibility of achieving ... finds Bernhard Schmid, an ecology professor at the ... of agriculture and forestry. After all, a new ...
Breaking Biology News(10 mins):Modeling tumor dormancy 2Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3
... is measured to understand tree health, fluxes in carbon ... of the most essential and widely collected woody plant ... is awkward and time consuming. Scientists have developed a ... safely and accurately. Dendrometer bands are metal straps ...
... (IL-7) is an important immune messenger protein which ensures ... in our body for immune defence. Researchers from ETH ... function: it enhances the drainage function of lymphatic vessels, ... vessels into the body tissue and return it to ...
... an old dog new tricks." Now neuroscientists are beginning to ... neuroscientists have struggled to understand how the microcircuitry of the ... for the old. New findings published in the journal ... Los Angeles and the University of California, Irvine show how ...
Cached Biology News:New technique for measuring tree growth cuts down on research time 2New technique for measuring tree growth cuts down on research time 3New function for a well-known immune messenger molecule 2New function for a well-known immune messenger molecule 3Researchers discover how inhibitory neurons behave during critical periods of learning 2
(Date:10/22/2014)... DUBLIN , Oct. 22, 2014 ... "Organic Electronics Market by Material, by Application, Geography ... report to their offering. Organic electronics, ... a branch of material science which deals with small ... as organic because small molecules and polymers are carbon ...
(Date:10/20/2014)... The report “Pharmacy Automation Systems Market by product ... Table-top Counters) by End-user (Inpatient Pharmacy Automation, Outpatient ... 2019” analyzes and studies the major market drivers, ... and the Rest of the World (RoW). , ... through 300 pages and in-depth TOC on "Pharmacy ...
(Date:10/20/2014)... Convey Computer , the leader in ... State University won first place in the 2014 ... the team’s solution achieved the highest overall performance in ... place finisher. , Experts from all segments of the ... challenge, using a variety of design tools, hardware and ...
(Date:10/20/2014)... - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced ... $5.8 million and provides a good start to Q4.  The orders ... and one in the Middle East ... levels," said Peter Bruijns , President & CEO. "Total bidding ... than they have been for any complete year since the company ...
Breaking Biology Technology:Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3
... of Madison has been licensed to sell a ... agents, GenTel announced on Tuesday. , ,GenTel will market ... Kreatech Biotechnology BV of Amsterdam, under its ... are validated for use on GenTel's PATH protein microarray ...
... drive thru Illinois you now pay a premium for using cash ... device for your car. If you stop for gas at a ... plastic device on their key chain to pay for gas. These ... applications to reduce costs, improve efficiency, and potentially improve the buyers ...
... Wis. - Former Wisconsin Gov. and Secretary of ... board of directors at C.R. Bard , the ... at the company's August board meeting. , ,Bard, a ... sells specialty devices for vascular, urology, oncology and surgical ...
Cached Biology Technology:
... HISTAR detection systems provide linking and ... with species specific primary antibodies for ... Visualisation is accomplished using an ultra-sensitive ... polymer labelling technology. Secondary antibodies are ...
... Enzyme concentration - 5 units/µL ,• High ... yields ,• Leaves an 'A' overhang ,• ... which exhibits very high activity in primer ... ensure the quality of the enzyme, each ...
... from Thermus aquaticus expressed in E. coli; ... of 250 units enzyme/tube and Buffer I ... the same enzyme as AmpliTaq DNA Polymerase ... separation process to ensure that contaminating bacterial ...
Our original highly-purified, robust Taq Polymerase which delivers consistently high yields and minimal background...
Biology Products: