Navigation Links
University of Maryland School of Medicine discovers adaptations to explain strategies for survival on Mars
Date:3/11/2013

Research from the University of Maryland School of Medicine has revealed key features in proteins needed for life to function on Mars and other extreme environments. The researchers, funded by NASA, studied organisms that survive in the extreme environment of Antarctica. They found subtle but significant differences between the core proteins in ordinary organisms and Haloarchaea, organisms that can tolerate severe conditions such as high salinity, desiccation, and extreme temperatures. The research gives scientists a window into how life could possibly adapt to exist on Mars.

The study, published online in the journal PLoS One on March 11, was led by Shiladitya DasSarma, Ph.D., Professor in the Department of Microbiology and Immunology at the University of Maryland School of Medicine and a research scientist at the Institute of Marine and Environmental Technology.

Researchers found that Haloarchaeal microbes contain proteins that are acidic, with their surface covered with negatively charged residues. Most ordinary organisms contain proteins that are neutral on average. The negative charges found in the unusual organisms keep proteins in solution and help to hold on tightly to water, reversing the effects of high salinity and desiccation.

In the current study, the scientists identified additional subtle changes in the proteins of one Haloarchaeal species named Halorubrum lacusprofundi. These microbes were isolated from Deep Lake, a very salty lake in Antarctica. The changes found in proteins from these organisms allow them to work in both cold and salty conditions, when temperatures may be well below the freezing point of pure water. Water stays in the liquid state under these conditions much like snow and ice melt on roads that have been salted in winter.

"In such cold temperatures, the packing of atoms in proteins must be loosened slightly, allowing them to be more flexible and functional when ordinary protein
'/>"/>

Contact: Karen Robinson
karobinson@som.umaryland.edu
410-706-7590
University of Maryland Medical Center
Source:Eurekalert

Page: 1 2

Related biology news :

1. University of Miami geologists to address the mystery of an evolution gap in reef corals
2. University of Illinois researchers develop AFM-IR for nanometer scale chemical identification
3. University of Alberta researchers bake a better loaf of bread
4. UC Berkeley, UCSF and Stanford join forces to help commercialize university innovations
5. University of Colorado and Orphan Technologies sign agreement
6. Brown University researchers build robotic bat wing
7. Wayne State University researchers techniques enable more, faster testing of biological liquids
8. University of Arizona Engineering College pursues water technology innovation cluster
9. Brown University scientists to discuss resilience of coastal communities at AAAS
10. New Research Conducted by University Cancer Centers Links BP Refinery Incident to Increase Occurrence of Cancer in Texas City
11. University of Florida reports 2012 US shark attacks highest since 2000
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... Calif. , Nov. 20, 2014 Strict ... driver efficiency are piloting the North American and European ... of accidents growing, gesture recognition systems that are intuitive ... a mark in the industry. New ... Automotive Gesture Recognition Market in Europe ...
(Date:11/21/2014)... SAN JOSE, Calif. , Nov. 20, 2014 /PRNewswire/ ... a global leader in microcontroller (MCU) and touch technology ... digital temperature sensors with the widest V ... family delivers higher temperature accuracy and faster I 2 ... nonvolatile registers and serial EEPROM memory making them ideal ...
(Date:11/18/2014)... BOSTON , Nov. 17, 2014   ... HealthCare and EMC collaborate to develop The Partners ... , The Partners Data Lake will allow ... to improve diagnostics, treatment and the lives of ... support research and clinical activities across the Partners ...
Breaking Biology News(10 mins):Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5
... Hopkins undergraduates have invented a device to improve cell ... inside a major blood vessel. , A team ... Hopkins doctors and engineers, devised a protective "pouch" that ... the liver. This pouch would keep microcapsules of therapeutic ...
... and number of species crystallized into a mathematical power ... as biological destinations where species from large continents arrive ... seclusion. , Since islands have many times fewer ... continents were rich sources from which islands drew only ...
... percent, yet there is a considerable difference in the mental ... showed that a certain form of neuropsin, a protein that ... in the central nervous systems of humans and that it ... also demonstrated the molecular mechanism that creates this novel protein, ...
Cached Biology News:Students invent protective pouch to enhance cell therapy 2Students invent protective pouch to enhance cell therapy 3Students invent protective pouch to enhance cell therapy 4Invasion of the island bats 2Gene mutation linked to cognition is found only in humans 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Based ... the overall surgical imaging market is dominated by ... the surgical imaging market. These players include GE ... Ziehm Imaging (Germany). , Full Report Copy ... of GE Healthcare can be attributed to its ...
(Date:12/17/2014)... This report is a professional ... For an overview analysis, the report introduces quartz ... structure, industry overview, policy analysis, and news analysis, ... has witnessed rapid development with key manufacturers increasing ... report mentions quartz tubing upstream raw materials and ...
(Date:12/17/2014)... , Dec. 17, 2014  United Therapeutics Corporation ... executive promotions as well as changes to Martine ... Executive Promotions United Therapeutics announced the ... and Co-Chief Executive Officer and David Zaccardelli , ... In connection with these promotions, Dr. Rothblatt,s title will ...
(Date:12/15/2014)... & PETACH TIKVAH, Israel , ... BCLI ), a leading developer of adult ... wholly-owned subsidiary Brainstorm Cell Therapeutics Ltd. was awarded a ... Office of the Chief Scientist (OCS).  This ... receipt of grant support from the Office of the ...
Breaking Biology Technology:Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 42020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 3United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 4BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 2BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 3
... One of,Brazil,s leading distributors of pharmaceutical products, Profarma,Distribuidora de Produtos ... its results for the fourth quarter of,2007 (4Q07) and full ... Profarma,s market share breaks record and reaches 12.8% which is ... reached in the 3Q07 and 3.2 ...
... Reports Problems in VA System for Veterans with ... Kilpatrick,Ph.D., MUSC distinguished university professor and director of ... MUSC,s Institute of,Psychiatry, testified before Congress Feb 26 ... the PTSD (post-traumatic stress disorder) Compensation Committee,regarding findings ...
... ... 2007 Highlights: * Product revenues increased 29% ... units increase 20% to 116,300 units, IRVINE, Calif., Feb. 26 Masimo ... Perfusion pulse oximetry, today announced its financial,results for both the quarter and year ...
Cached Biology Technology:MUSC's Kilpatrick to Address Congress Regarding PTSD Care 2Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 2Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 3Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 4Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 5Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 6Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 7Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 8Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 9Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 10Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 11Masimo Reports Fourth Quarter 2007 and Full Year 2007 Financial Results 12
... tetrasodium bromide), 50mg/vial. MTT is a pale ... cells to yield a dark blue formazan ... even freshly dead cells do not cleave ... a component of Chemicons MTT assay kit, ...
... Infinite 200 series of microplate readers combines ... detection in an affordable, easy-to-use platform for ... The unique modular design and adaptability of ... a choice of a monochromator (M200) or ...
Rabbit polyclonal to SMARCA2 / BRM - ChIP Grade ( Abpromise for all tested applications). entrezGeneID: 6595 SwissProtID: P51531...
... receptors constitute the principal excitatory ... classes of glutamate receptors exist: ... Ionotropic glutamate receptors are oligomeric ... NMDA1-3, KAI-2) which comprise ligand-gated ...
Biology Products: