Navigation Links
Deep thinking: Scientists sequence a cold-loving marine microbe

At home in the deep, dark Arctic Ocean, the marine bacterium Colwellia psychrerythraea 34H keeps very cool--typically below 5° degrees Celsius. How does the bacterium function in this frigid environment? To find out, scientists at The Institute for Genomic Research (TIGR) and collaborators have sequenced and analyzed C. psychrerythraea's genome.

That genome analysis, posted in the Proceedings of the National Academy of Sciences (PNAS) Online Early Edition July 25-29, reveals key biochemical tools that cold-adapted, or psychrophilic, bacteria can use to survive in subzero temperatures. In particular, some of C. psychrerythraea's estimated 4,937 genes apparently code for adaptive traits such as cell membranes packed with polyunsaturated fatty acids that resist freezing, polyester compounds that offer extra energy reserves, protective solutes inside cells, and ordinary enzymes altered to function in chilly seawater.

"Our goal was to compare C. psychrerythraea to a variety of bacteria that live at different optimal temperatures," remarks Barbara Methé, a molecular biologist at TIGR and lead author of the PNAS paper. "This organism must adapt to extreme cold--in fact, it cannot live above room temperature. How does it cope in such freezing conditions?"

Among cold-adapted bacteria, Colwellia species have a decidedly chilly comfort zone. The bacteria typically require temperatures less than 20° to grow. Scientists have found C. psychrerythraea--which prefers temperatures of -1° to 10° --hugging sediments along the Arctic floor, floating in the open ocean, and nestled inside Arctic and Antarctic sea ice.

To explain C. psychrerythraea's unique cold-adapted chemistry, TIGR researchers and collaborators first sequenced the bacterium's genome and analyzed its gene content for telltale proteins that might be cold-adaptive. Next, they predicted C. psychrerythraea's proteome--or complete inventory of protein sequences--and then compared it to 21 pred
'"/>

Source:TIGR


Page: 1 2 3

Related biology news :

1. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
2. Scientists Replicate Hepatitis C Virus in Laboratory
3. Scientists detect probable genetic cause of some Parkinsons disease cases
4. Scientists find missing enzyme for tuberculosis iron scavenging pathway
5. Scientists seek answers on what activates deadly anthrax spores
6. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
7. Scientists collaborate to assess health of global environment
8. Scientists decipher genome of fungus that can cause life-threatening infections
9. Scientists discover the cellular roots of graying hair
10. Scientists rid stem cell culture of key animal cells
11. Scientists develop new color-coded test for protein folding
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Deep thinking Scientists sequence cold loving marine microbe

(Date:4/23/2014)... The trope that the likelihood of an accurate group ... not hold up when a collective faces a variety ... nature. Instead, Princeton University researchers report that smaller groups ... assemblies may become excessively focused on only certain pieces ... to what is known about collective intelligence, or the ...
(Date:4/23/2014)... turning away from using triclosan as an antimicrobial ingredient ... And now scientists are reporting new evidence that appears ... ACS journal Chemical Research in Toxicology , found ... octylphenol, promoted the growth of human breast cancer cells ... , Kyung-Chul Choi and colleagues note that hormonal imbalances ...
(Date:4/23/2014)... disease is the first cause of dementia and affects ... cure has yet been found. One of the reasons ... cellular mechanisms which cause alterations in nerve transmissions and ... the disease., Researchers from the Institute of Neuroscience at ... mechanism involved in memory consolidation and were able to ...
Breaking Biology News(10 mins):Too many chefs: Smaller groups exhibit more accurate decision-making 2Too many chefs: Smaller groups exhibit more accurate decision-making 3In lab tests, the antimicrobial ingredient triclosan spurs growth of breast cancer cells 2Loss of memory in Alzheimer's mice models reversed through gene therapy 2
... This press release is available in French ... and men contribute equally to the lineage of contemporary populations? ... polygamy or monogamy? To answer these questions, Dr. Damian Labuda, ... a professor at the Department of Pediatrics of the Universit ...
... professor of chemistry at New Jersey Institute of ... patent today for a novel composition of matter. ... (US Patent Number 7,670,684) discloses a new self-contained ... comprised of organic scaffolds with metal centers, which ...
... worldwide. It is the most common form of age-related dementia, ... no cure, and the available drugs only help to relieve ... characteristic changes in the brains of Alzheimer,s patients is the ... curing or at least slowing the disease lies in developing ...
Cached Biology News:Modern man found to be generally monogamous, moderately polygamous 2NJIT researcher awarded patent for hydrophobic, corrosion-resistant coating 2The sea squirt offers hope for Alzheimer's sufferers 2
(Date:1/15/2014)... Canada (PRWEB) January 15, 2014 This ... on nonclinical and clinical safety assessment in biosimilars. , ... path for biosimilar drug development, however the complex nature ... to quality, safety and efficacy extremely challenging. Based on ...
(Date:1/15/2014)... Two champions of science, technology, engineering, ... an annual competition for middle and high school students ... STEM study. The competition presents students with real-world problems ... Aptitude, Mathematics, and Sciences is a program administered ...
(Date:1/15/2014)... Arizona (PRWEB) January 15, 2014 2013 ... for Scottsdale’s Brain State Technologies®. They saw continued independent ... Medical Center who were awarded a $1 million grant ... published in “Brain and Behavior” a peer reviewed journal, ...
(Date:1/15/2014)... TaiGen Biotechnology Company, Limited ("TaiGen") today announced that ... leading Russian pharmaceutical company, to develop and commercialize nemonoxacin ... , Turkey and other ... novel antibiotic for the treatment of bacterial infections including ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4
... Commercialization of the Revolutionary ... Accuri C6 Flow Cytometer(R) System--, ... a life,sciences company developing revolutionary bench-top flow cytometer systems,today ... financing led by,Fidelity Biosciences and Flagship Ventures. Current investors ...
... 8 Concentric Pharma Advertising, Inc., a,five-year-old ... growing in the,field, has been selected by ... a developmental once-daily,medication for the treatment of ... include a broad range of activities,including branding, ...
... 7 American Oriental,Bioengineering, Inc. (NYSE: AOB ... market conditions and other factors, $85 million aggregate,principal ... qualified,institutional buyers in a private placement exempt from ... as amended (the "Securities,Act")., AOB currently expects ...
Cached Biology Technology:Accuri Cytometers Completes $13 Million Series C Financing 2Accuri Cytometers Completes $13 Million Series C Financing 3Accuri Cytometers Completes $13 Million Series C Financing 4Concentric Wins Full-Service Professional Assignment From Biopharm Innovator Neuromed 2American Oriental Bioengineering Proposes Offering of $85 Million of Convertible Notes 2American Oriental Bioengineering Proposes Offering of $85 Million of Convertible Notes 3
Kit Components: Anti-PARP LumiGLO Chemiluminescent Substrate Immunoblot Blocking Reagent Pyronin Y Reagent Goat Anti-Rabbit IgG, HRP conjugate Double-It Reagent Film Exposure Folders Autor...
... version of Freezerworks Unlimited includes 2 clients and ... facilitates the sharing of freezers by multiple groups ... Network Client/Server version ... in monitor with 256 colors; OS 8.6 & ...
Polypropylene test tube racks, used in Thermo Forma's line of Test Tube Rack holders...
Mixing speed from 750-3200RPM, small vortexing orbit of1.0mm...
Biology Products: