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:7/29/2014)... cell, including sperm, bacteria and algae, propel themselves ... about one-hundredth of a millimetre long, function like ... shorter structures called cilia are found on the ... such as moving liquids over the cell. ... transport mucus and expel pathogens from our airways, ...
(Date:7/28/2014)... An international team of researchers led by the University ... rice. , The genetic information will enhance scientists, and ... as well as enable the development of new rice ... environmental stressors to help solve global hunger challenges. , ... Oryza glaberrima ) and evidence for independent domestication," was ...
(Date:7/28/2014)... rat brain cells suggests that the effects of a ... cells are temporary. , The study, published in this ... was conducted by biologists at the University of California, ... York in response to concerns, arising from multiple studies ... to general anesthetics may increase their susceptibility to long-term ...
Breaking Biology News(10 mins):Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3Generating a genome to feed the world: UA-led team sequences African rice 2Generating a genome to feed the world: UA-led team sequences African rice 3Generating a genome to feed the world: UA-led team sequences African rice 4Study suggests disruptive effects of anesthesia on brain cell connections are temporary 2Study suggests disruptive effects of anesthesia on brain cell connections are temporary 3
... cancer has shown considerable promise in early clinical trials ... drugs. Chemists and biologists at ... Sloan-Kettering Cancer Center, have created a new drug to ... as castration-resistant prostate cancer, or CRPC. Also referred to ...
... of drug-resistant bacteria, called multidrug-resistant gram-negative (MDRGN) ... common antimicrobial-resistant infections in long-term care facilities, ... at Hebrew SeniorLife,s Institute for Aging Research., ... of the main reservoirs of antimicrobial-resistant bacteria. ...
... /PRNewswire-Asia/ -- Futronic Technology Company,Limited, a global provider of ... of FS90 USB2.0 Mini Fingerprint,Scanner. , ... deliver high quality image,in a very small form factor. ... and just,slightly larger than one half of Futronic FS80 ...
Cached Biology News:New drug shows promise in treating drug-resistant prostate cancer 2New drug shows promise in treating drug-resistant prostate cancer 3New drug shows promise in treating drug-resistant prostate cancer 4Study finds multidrug-resistant gram-negative bacteria high in long-term care 2Futronic Launches FS90 USB2.0 Mini Fingerprint Scanner 2
(Date:7/29/2014)... new way of manufacturing microstructured surfaces that have ... of carbon nanotubes, could exhibit a variety of ... strength, or the ability to repel water in ... mechanical forces can be used to direct nanostructures ... can independently control the mechanical properties of ...
(Date:7/29/2014)... July 29, 2014 According to ... Slide Imaging), Analytics (Image Analysis Software), Delivery Modes (Web ... Forecasts & Trends to 2018", published by MarketsandMarkets, analyzes ... geographies such as North America , ... , and the Rest of the World (RoW). ...
(Date:7/29/2014)... Colo. , July 29, 2014  Cannabis ... in cannabis formulation-based drug development and related consulting, ... Times for taking a strong position in opposition ... Sunday, July 27, 2014 publication.  The New York ... and articles this week exploring the issue called ...
(Date:7/29/2014)... Philadelphia’s newest entrepreneurial incubation space is ready for ... The Innovation Center @3401 , a collaborative effort of ... to help attract and nurture start-up businesses in the ... , The Innovation Center @3401 (ic@3401), which is ... the new home of DreamIt Ventures and ...
Breaking Biology Technology:A new way to make microstructured surfaces 2Digital Pathology Market worth $437 Million by 2018 2Digital Pathology Market worth $437 Million by 2018 3Cannabis Science, Inc. (CBIS) Applauds New York Times Editorial Board Stance on 'Repealing Prohibition, Again'; NYT Editorial Is Bell Weather of Change 2Cannabis Science, Inc. (CBIS) Applauds New York Times Editorial Board Stance on 'Repealing Prohibition, Again'; NYT Editorial Is Bell Weather of Change 3Innovation Center @3401 Opens for Business; DreamIt Ventures and Point.io First Residents 2Innovation Center @3401 Opens for Business; DreamIt Ventures and Point.io First Residents 3
... DJO Incorporated,(NYSE: DJO ), a global provider of ... reported that on August 9, 2007,the U.S. Federal Trade ... the Hart-Scott-Rodino Antitrust Improvements Act of,1976, as amended, for ... Therapeutics, Inc. ("ReAble"). On July 16, 2007, DJO ...
... Valeant Pharmaceuticals ... ... Biosciences,Inc. (Pink Sheets: ARDC) today announced that it has received the ... (NYSE: VRX ). In December 2006, Ardea Biosciences entered ...
... Shareholder Support for Vermed Sale, SAN DIEGO, Aug. ... innovator and leader of,impedance cardiography (ICG) technology, today announced ... progressing well with over 50%,of the necessary shareholder votes ... the Vermed sale. The ratio of votes,received is running ...
Cached Biology Technology:DJO Incorporated's Pending Merger With ReAble Therapeutics Clears U.S. Antitrust Review 2DJO Incorporated's Pending Merger With ReAble Therapeutics Clears U.S. Antitrust Review 3DJO Incorporated's Pending Merger With ReAble Therapeutics Clears U.S. Antitrust Review 4Selection of Development Candidate Triggers $0.5 Million Milestone Payment to Ardea Biosciences, Inc. 2CardioDynamics Provides 2007 Shareholder Meeting Update 2CardioDynamics Provides 2007 Shareholder Meeting Update 3
... kit contains the basic components required for ... natural and recombinant rat Thymus Chemokine-1 in ... contains sufficient materials to run ELISAs on ... following conditions are met: The ...
Request Info...
SCP-1 (P-17)...
Rabbit polyclonal to Kallikrein 1 ( Abpromise for all tested applications). Antigen: Full length native kallikrein from tissue (Human) Entrez Gene ID: 3816 Swiss Protein ID: P06870...
Biology Products: