Navigation Links
Bacteria gauge cold with molecular measuring stick
Date:10/19/2010

ell wall become more rigid as temperatures fall.

Fernandez and colleagues found that the part of the DesK protein that protrudes outside the cell contains a sensitized tip. As long as the tip remains in contact with water molecules outside the cell, DesK remains switched off. As temperatures fall and the cell membrane becomes more rigid, the membrane also becomes thicker. As it thickens, it engulfs the sensitized end of the temperature probe, cutting off contact with water molecules outside the cell. This, in turn, activates DesK and sends the signal to release the cold-protecting chemicals. This mechanism, which Fernandez named the buried buoy trigger, was proposed by Fernandez and probed experimentally by the Argentinean team.

The molecular biology and experimental probes were conducted in the laboratory of Diego de Mendoza at the National University of Rosario in Rosario, Argentina. To confirm the findings, the group constructed versions of DesK proteins of varying lengths. Using these as longer or shorter measuring sticks, the researchers confirmed that the signaling mechanism was triggered based upon whether the tip of the transmembrane sensor remained in contact with water molecules outside the membrane.


'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

Page: 1 2

Related biology news :

1. TYRX AIGISRx antibacterial envelope shows low infection rate, high CIED procedure success
2. NIH-funded scientists sequence genomes of lyme disease bacteria
3. Key difference in how TB bacteria degrade doomed proteins
4. Gambling on bacteria
5. UCLA-led research team finds that bacteria can stand up and walk
6. Scientists trick bacteria with small molecules
7. Notre Dame researcher helps discover walking properties of bacteria
8. Life-saving in the bacterial world: How Campylobacter rely on Pseudomonas to infect humans
9. Bacteria keep tabs on state of oil field
10. FSU researchers examine how bacteria become resistant to antibiotics
11. Scientists reveal important clues to how bacteria and viruses are identified as enemies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... -- NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) ("NXT-ID" ... mobile commerce market releases photos and video of the recent opening ... 13 th . Gino Pereira , CEO ... investor Mr. Chad A. Verdi rang the bell.  ... investors and employees "for their work and dedication in bringing the ...
(Date:10/14/2014)... tumors scavenge and hoard copper that is an essential ... a fatal weakness. , Researchers at Duke Medicine ... by delivering a trove of copper along with a ... the mineral, leaving non-cancer cells healthy. , The combination ... other uses, could soon be tested in clinical trials ...
(Date:10/14/2014)... the house fly genome for the first time, revealing ... insect that thrives in pathogen-rich dung piles and garbage ... journal Genome Biology , will increase understanding of ... quickly adapt to resist insecticides, which could lead to ... carry and transmit more than 100 human and animal ...
Breaking Biology News(10 mins):Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Prostate cancer's penchant for copper may be a fatal flaw 2House fly genome reveals expanded immune system 2
... an underlying molecular cause for one form of deafness, ... of liquid crystals, which are used in flat-panel displays. ... waves cause the basilar membrane to vibrate. These vibrations ... are transmitted to the brain. , Researchers have ...
... with colleagues from UC Berkeley and StrataGent Life Sciences, ... microjet system engineered to deliver protein drugs into the ... injection systems cause. The research was published online today ... , The effort to create needle-free drug delivery ...
... of University of Georgia scientists suggests that curbing the ... ?if anything ?to reduce rates of antibiotic resistant bacteria ... , Dr. Margie Lee, professor in the UGA College ... chickens raised on antibiotic-free farms and even those raised ...
Cached Biology News:Scientists identify molecular cause for one form of deafness 2Researchers design pulsed mircrojet system to deliver protein drugs without pain or bruising 2Study finds antibiotic resistance in poultry even when antibiotics were not used 2Study finds antibiotic resistance in poultry even when antibiotics were not used 3
(Date:10/20/2014)... , Oct. 20, 2014 PureTech , ... tackling big healthcare problems, announced today the closing ... with participation from Invesco Perpetual, a $120 Billion ... to drive PureTech,s existing pipeline forward and to ... has the scientific creativity to really go for ...
(Date:10/19/2014)... Latin American hardware encryption display market report defines and ... forecast of revenue. This market was valued at $165.0 ... million by 2018, at a CAGR of 70.3% from ... the Latin American hardware encryption market report to get ... provides a glimpse of the segmentation of the market, ...
(Date:10/19/2014)... 2014 The Asian Automatic patient billing ... analysis and forecast of revenue. The Automatic patient billing ... $463.9 million by 2018, at a developing CAGR of ... TOC of the Asian Automatic patient billing market, to ... also provides a glimpse of the segmentation of this ...
(Date:10/19/2014)... October 19, 2014 The report ... & Homeland Security), Technology, Payload, Type & by ... segments the global unmanned ground vehicle market into ... forecasting of market sizes. The report also identifies ... opportunities impacting it along with the adoption trends. ...
Breaking Biology Technology:PureTech Announces Expansion with Oversubscribed $55M Funding Round 2PureTech Announces Expansion with Oversubscribed $55M Funding Round 3PureTech Announces Expansion with Oversubscribed $55M Funding Round 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 6The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 5
... - On Sand Hill Road in Menlo Park, Calif., ... talk these days is of a "boomlet" in deal-making. Technology ... get a meeting with a venture capitalist are now entertaining ... last week that one company, XenSource, had seven solid investment ...
... debates and teaching, it is sometimes useful to go to extremes ... to such tactics, but in the last month exactly that has ... right mind wants to get into a contest with Mother Nature, ... is whether we as students will be bright enough to learn ...
... things can make a professor lose his cool more than ... possibilities for making a mistake are endless: a DVD made ... recordings skipping around uncontrollably or even an overhead projector falling ... the duty of solving such technical issues and more falls ...
Cached Biology Technology:Wisconsin early-stage companies must position themselves to get capital 2Wisconsin early-stage companies must position themselves to get capital 3Planning, reality, good intentions and the road to ... 2Planning, reality, good intentions and the road to ... 3Planning, reality, good intentions and the road to ... 4Interest drives investment of instructional technology 2Interest drives investment of instructional technology 3Interest drives investment of instructional technology 4
... 200 IS System is ideal for developing ... reagents. This system contains the new, improved, ... Luminex. The user can design specific templates ... system has fully integrated graphing and data ...
...
... GeneSwitch Cell Lines stably express the ... cell line is functionally tested for ... the expression control vector pGene/V5-His/lacZ and ... treatment with mifepristone (Figure 1). These ...
... for 10 separate biopanning experiments, complexity ... gIII Sequencing Primer (100 pmol), for ... Primer (100 pmol), for automated DNA ... Control target (Streptavidin) and Elutant (Biotin), ...
Biology Products: