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:7/22/2014)... In contrast to their negative reputation as disease ... and evolutionary functions that help to shape the ... new report by the American Academy of Microbiology. ... influence all life forms on the planet, from ... and driving major speciation events," states Marilyn Roossinck ...
(Date:7/22/2014)... NY -- Stem cells offer much promise for treating ... stem cell survival is poor, limiting their effectiveness. New ... survival and optimize their therapeutic function after transplantation, as ... Access , a peer-reviewed journal from Mary Ann Liebert, ... BioResearch Open Access website . ...
(Date:7/22/2014)... hear that drinking milk helps make their bones strong or that ... the idea that if something is good for us, it must ... Journal of Consumer Research , when children hear about the benefits ... predicted that when food is presented to children as making them ... learning how to read or count, they would conclude the food ...
Breaking Biology News(10 mins):Report on viruses looks beyond disease 2
... academic, government and industry researchers has completed a first draft ... important first step in accelerating the pace of research on ... that face cassava farmers around the world. Cassava is ... for more than 750 million people each day. Although it ...
... 9 Genencor, a division of Danisco, has ... American Institute of Chemical Engineers (AIChE) for its ... Robert Davis, Chair of the AIChE Awards committee, ... Marketing Director, Biomass Enzymes and Accellerase® Product Manager, ...
... A chemical culprit responsible for the rapid, mysterious death ... found by collaborating scientists at Rutgers University and the ... may hold unexpected promise in cancer research. The ... in a virus that has been attacking and killing ...
Cached Biology News:Researchers complete draft genome sequence for cassava 2Researchers complete draft genome sequence for cassava 3Researchers complete draft genome sequence for cassava 4Genencor Wins The American Institute of Chemical Engineers (AIChE) Sustainable Energy Award For Accellerase(R) Cellulosic Ethanol Enzymes 2Newly discovered fat molecule: An undersea killer with an upside 2Newly discovered fat molecule: An undersea killer with an upside 3Newly discovered fat molecule: An undersea killer with an upside 4
(Date:7/22/2014)... in water with ultrasound and they,ll spin around their ... yet knows exactly. But researchers at the National Institute ... it,s fast. At up to 150,000 revolutions per minute, ... object submerged in liquid ever reported. , The discovery ... that they could be used not only for moving ...
(Date:7/22/2014)... (PRWEB) July 22, 2014 Automated cell ... and maintenance of cell culture. They allow production of ... needs of researchers in drug discovery and industries and ... in mAb production, iPSC research, cryobanking, cell-based assays, and ... contamination risk. , Analysts forecast the Global Cell ...
(Date:7/22/2014)... (NASDAQ: NEOG ) announced today that revenues ... increased 19% from the previous year to $247,405,000. Fiscal ... year,s $27,190,000. Adjusted for a 3-for-2 stock split effective ... year were $0.76, compared to $0.75 a year ago. ... year established new all-time highs for the 32-year-old company. ...
(Date:7/22/2014)... PITTSBURGH , July 22, 2014 ... maker of MD-Cu 29 antimicrobial copper announces Pullman ... to the first EPA-registered antimicrobial solid touch surface, at ... than 99.9% of MRSA, E-coli and other bacteria within 2 ... hospital in protecting against bacteria and infectious diseases in ...
Breaking Biology Technology:NIST shows ultrasonically propelled nanorods spin dizzyingly fast 2Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 2Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 3Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 4Neogen reports 19% increase in annual revenues 2Neogen reports 19% increase in annual revenues 3Neogen reports 19% increase in annual revenues 4Neogen reports 19% increase in annual revenues 5Neogen reports 19% increase in annual revenues 6Neogen reports 19% increase in annual revenues 7Neogen reports 19% increase in annual revenues 8Pullman Regional Hospital changes more than 1,100 touch points to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 2Pullman Regional Hospital changes more than 1,100 touch points to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 3
... Mich., Sept. 10 The primary objective of ... the delivery of,biomedical advances to the marketplace. ... at Boston University on,Friday, September 7th with noted ... Presidents of both Boston,University and Fraunhofer Gesellschaft. ...
... by prominent,Board members Robert Windom, M.D. and Steven ... with inventor Dr. Budimir Drakulic -,have this day ... approved, ambulatory 12-lead ECG cardiovascular,monitor. In private ... ten,days, the trio of cardiovascular experts and Signalife,s ...
... (Amex: PTN ) today announced it has ... melanocortin agonist drug,candidate for the treatment of male ... King Pharmaceuticals Inc. (NYSE: KG ). ... development,and marketing agreement on bremelanotide, with King exercising ...
Cached Biology Technology:'Alliance for Medical Devices, Instrumentation and Diagnostics' formed between Fraunhofer Center for Manufacturing Innovation and Boston University 2Signalife's Dr. Harmison Launches Award-Winning Ambulatory Heart Monitor 2Signalife's Dr. Harmison Launches Award-Winning Ambulatory Heart Monitor 3Palatin Technologies Announces Reacquisition of Full Rights to Bremelanotide Program 2Palatin Technologies Announces Reacquisition of Full Rights to Bremelanotide Program 3
Application: for RNase- decontamination , Registered Trademark of Ambion. ,Special grade: for molecular biology Density: 1.00 g/mL (20 C) Suitab tst: RNase decontamination in accordance...
... A cleaning agent for removing ... countertops, and pipettors. It ... RNase contamination from microcentrifuge tubes ... ,RNase Zap (R) ...
Mol wt: average mol wt12,360.96 Da by calculation...
... a series of media originally developed at the ... for the large scale propagation of cells from ... used for the growth and maintenance of cell ... viruses in these cell lines. One of the ...
Biology Products: