Navigation Links
Purple extremist thrives under inhospitable conditions
Date:6/25/2008

This release is available in German.

Mild environmental conditions are a prerequisite for life. Strong acids or dissolved metallic salts in high concentrations are detrimental to both humans and to simpler life forms, such as bacteria. Such conditions destroy proteins, ensuring that all biological functions in the cells come to a standstill. So what do we find at the limits of hostile conditions where we still find life? Scientists at the Helmholtz Centre for Infection Research (HZI) in Braunschweig (Germany) have joined up with colleagues from Spain and Great Britain to identify an enzyme that requires acids and dissolved metals in order to function. The team describes its findings regarding the extreme protein of the archaebacterium Ferroplasma acidiphilum in the latest online edition of the renowned US research journal PNAS.

HZI scientist Dr. Olga Golyshina discovered Ferroplasma ten years ago and has been endeavouring to unlock its secrets ever since. "This organism is ideally adapted to extremely hostile environments. It likes to live in highly acidic solutions containing toxic heavy metals. It is unable to exist at all under normal conditions," she says, describing her research object. "We recently noted that Ferroplasma is unique in the world of living organisms, as it contains iron in high concentrations. Now we aim to discover how its proteins function under such extreme conditions."

For this purpose the team has selected a so-called DNA ligase. Enzymes of this type play a central role in important metabolic processes such as the duplication of genetic material in dividing cells and the repair of genetic damage. All DNA ligases investigated so far, including the DNA ligases of the so-called extremophile microorganisms that live in particularly inhospitable habitats which are either acidic, alkaline, hot or cold, , re
'/>"/>

Contact: Hannes Schlender
hannes.schlender@helmholtz-hzi.de
49-531-618-11400
Helmholtz Association of German Research Centres
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Abnormal fat metabolism underlies heart problems in diabetic patients
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Antioxidant overload may underlie a heritable human disease
4. Understanding hypertension in African Americans proves elusive
5. Climate change goes underground
6. LSU professor looks for life in and under antarctic ice
7. Systems Biology poised to revolutionize the understanding of cell function and disease
8. ASPB announces Summer Undergraduate Research Fellowship 2007 recipients
9. Spatial patterns in tropical forests can help to understand their high biodiversity
10. Woods Hole Research Center to lead undergraduate initiative in the Siberian Arctic
11. Flu vaccine in painless skin patches under development at Emory, Georgia Tech with NIH grants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Purple extremist thrives under inhospitable conditions
(Date:7/11/2014)... of researchers from The Chinese University of Hong Kong, ... wild soybean linked to salt tolerance, with implication for ... This study published online in Nature Communications ... for crop improvement. , Soybean is an important crop ... cultivated soybeans have less genetic diversities than their wild ...
(Date:7/11/2014)... group members to reduce aggression and gain access to ... grooming activities shows a certain pattern across the day. ... Biology Letters . , Grooming between individuals in ... motives. To be groomed has hygienic benefits and is ... can provide access to infants, mating opportunities and high ...
(Date:7/11/2014)... explored two different ways that allow unprecedented experimental ... formation of oxygen molecules in photosynthesis. The two ... Nature Communications . , "The new knowledge ... water oxidation, which are key components for building ... solar energy in fuels like hydrogen, ethanol or ...
Breaking Biology News(10 mins):BGI reports a novel gene for salt tolerance found in wild soybean 2Baboons groom early in the day to get benefits later 2Molecular snapshots of oxygen formation in photosynthesis 2
... Scientists have identified some of the very earliest genetic changes ... them into a new strain of mouse that develops the ... The discoveries, reported in the August 1 issue of Cancer ... treatments that could be offered at the very first signs ...
... the closest living relative to the extinct Irish Elk (giant ... and skeletal features to prove that the giant deer - ... is the subject of numerous cave drawings - has its ... most widespread deer in the UK since their introduction by ...
... for understanding fungal diseases, two groups of researchers are ... dioxide (CO2) governs the morphogenic changes that allow pathogenic ... human body, and they provide new evidence for how ... control the growth and sexual reproduction of pathogenic microbes. ...
Cached Biology News:Building a better mouse model of lung cancer: FHIT counts 2Building a better mouse model of lung cancer: FHIT counts 3Study Holds Promise For New Way To Fight HIV 2CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts 2CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts 3
(Date:7/10/2014)... Angeles, CA (PRWEB) July 10, 2014 ... and Bioanalytical techniques during 18-20 August, 2014 at Double ... critically review the recent developments in Analytical & Bioanalytical ... the globe. , Speaking on this occasion, Dr. Srinubabu ... Analytica Acta conference is a remarkable one in ...
(Date:7/10/2014)... , July 10, 2014  Kainos Capital, a ... brands, today announced that it has acquired the Slim-Fast ... in the business. Terms of the transaction were not ... and meal replacement business that markets ready-to-drink shakes, powders, ... North America and in the ...
(Date:7/10/2014)... of Adelaide research may help in the fight against ... detect tiny quantities of explosives with the use of ... journal Sensors and Actuators B: Chemical , the ... detect explosives in concentrations as low as 6.3 ppm ... only a few minutes. , "Traditionally explosives detection has ...
(Date:7/10/2014)... The lithium-ion batteries that power our laptops and electric ... a single charge with the help of a sponge-like ... to replace the graphite traditionally used in one of ... times the energy storage capacity of graphite. A paper ... was published today in Nature Communications . , ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Kainos Capital Acquires Slim-Fast From Unilever 2Detecting trace amounts of explosives with light 2Silicon sponge improves lithium-ion battery performance 2Silicon sponge improves lithium-ion battery performance 3
... SAN CARLOS, Calif. and BROOMFIELD, Colo., Dec. 1 ... ARCA biopharma, Inc., a privately-held,biopharmaceutical company developing genetically-targeted ... announced that a special,meeting of Nuvelo,s stockholders will ... PT at Nuvelo,s headquarters at 201 Industrial Road, ...
... RIDGE, N.J., Dec. 1 Regado Biosciences, Inc.,announced today ... present at the 20th Annual Piper Jaffray Health Care ... at 10:10am (Eastern Standard Time).,Dr. Mazzo will discuss the ... clinical developments. , ...
... for nomination of candidates worldwide - , ... Technology Foundation of Japan today announced the two fields eligible ... prestigious awards in science and technology. The 2010 Japan Prize ... and biological production and environment. , , ...
Cached Biology Technology:Nuvelo and ARCA biopharma Advance Toward Completion of Merger 2Nuvelo and ARCA biopharma Advance Toward Completion of Merger 3Nuvelo and ARCA biopharma Advance Toward Completion of Merger 4Nuvelo and ARCA biopharma Advance Toward Completion of Merger 52010 Japan Prize to Honor Scientists and Researchers in Industrial Production/Production Technology and Biological Production/Environment Fields 22010 Japan Prize to Honor Scientists and Researchers in Industrial Production/Production Technology and Biological Production/Environment Fields 3
...
ANTI DIPHTH TOX A SU...
... shaker flask clips, purpose-designed to firmly retain ... clips are equipped with a top retainer ... a bottom retainer spring, and silicon tubing ... glassware. Clips include the required mounting ...
... An immuncapture enzyme-activity assay based on ... captured on monoclonal antibody coated microtiter plate. ... standards, samples or controls, 2nd ... The assay is intended for the determination ...
Biology Products: