Navigation Links
Water, water everywhere - but is it essential to life?
Date:4/13/2012

Proteins are large organic molecules that are vital to every living thing, allowing us to convert food into energy, supply oxygen to our blood and muscles, and drive our immune systems. Since proteins evolved in a water-rich environment, it is generally thought that they are dependent on water to survive and function.

Proteins consist of one or more polypeptides chains of amino acids held together by peptide bonds. If a protein in water is heated to temperatures approaching the boiling point of water, these chains will lose their structure and the protein will denature (unfold).

A classic example of denaturing occurs when an egg is hard-boiled: the structures of the proteins in the egg unfold with temperature and stick together creating a solid. In the egg's case, this process cannot be reversed however there are many examples where cooling the protein results in refolding of the structure.

Previously, it was thought that water was essential to the refolding process, however the Bristol findings suggest this isn't necessarily the case.

Using a spectroscopic technique called circular dichroism, Dr Adam Perriman of Bristol's School of Chemistry and colleagues have shown that the oxygen-carrying protein myoglobin can refold in an environment that is almost completely devoid of water molecules.

Dr Perriman said: "We achieved this by attaching polymer molecules to the surface of the protein and then removing the water to give a viscous liquid which, when cooled from a temperature as high as 155C, refolded back to its original structure.

"We then used the Circular Dichroism beamline (B23) at Diamond Light Source, the UK's national synchrotron science facility in Oxfordshire, to track the refolding of the myoglobin structure and were astounded when we became aware of the extremely high thermal resistance of the new material."

These findings could pave the way for the development of new industrial en
'/>"/>

Contact: Hannah Johnson
hannah.johnson@bristol.ac.uk
0044-117-928-8896
University of Bristol
Source:Eurekalert

Page: 1 2

Related biology news :

1. Water, fair and foul
2. Inventor honored for tech improving access to clean water, healthcare, and business development in India
3. Discovery may lead to safer drinking water, cheaper medicine: Queens University researchers
4. Polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico test
5. Pitt researcher says simple polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico tests
6. Water, water everywhere focus of new sustainability project
7. When worms stick together and swim on thin water, what happens and why does it matter?
8. The green machine: Algae clean wastewater, convert to biodiesel
9. Water, water, everywhere… but is it safe to drink?
10. From a bucket of seawater, new understanding of the ocean
11. Database of water, wastewater pipeline infrastructure systems to be launched Sept. 1
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/24/2015)... 2015  Based on its recent analysis of the biometric ... African Biometrics Company of the Year Award. DERMALOG is the ... in Africa . It has particularly gained ... implemented one of the largest biometric mass applications in the ... Central Bank of Nigeria with its ...
(Date:8/18/2015)... Aug. 18, 2015  Navitas today announced ... to the Submission Content Management webinar scheduled ... non-profit forum. Dedicated to the Implementation of Regulatory ... platform for industry, vendors, health authorities, consultants ... work towards a standard method of implementing ...
(Date:8/12/2015)... Aug. 12, 2015  New research unveiled at ... Android phones to steal users, fingerprints. Information released ... of fingerprint scanners on mobile devices, making the ... secure biometrics on mobile devices, HYPR Corp. recently ... convenient authentication systems with strong cryptographic security. More ...
Breaking Biology News(10 mins):Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 2Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 3Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 4Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 5Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 6Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 3
... guide may be out of date now that University of ... a South Pacific island. , New genera of living ... announced globally. David Steadman and Andrew Kratter, ornithologists at the ... discovery on a collecting expedition in the Solomon Islands. Theirs ...
... very, very small. , Nano small. , A Michigan ... thin polymer films from buckling and wrinkling. It's a new ... important in new technology such as electronic monitors. ... that seems crossed with science fiction ?from microdermabrasians to ...
... similarities between Grenoble and Hollywood or between the researchers ... (IBS) and world-known filmmakers. However, scientists from these institutes ... movie. The actors are not celebrities but a protein ... this protein in action by freezing it at several ...
Cached Biology News:UF scientists discover new genus of frogmouth bird in Solomon Islands 2UF scientists discover new genus of frogmouth bird in Solomon Islands 3Nanotechnology shows promise as next wrinkle fighter 2Freeze! Scientists film proteins at work by freezing them at different states 2
(Date:9/2/2015)... ARBOR, Mich. and LIBERTYVILLE, Ill. (PRWEB) , ... ... ... NSF International, a leading provider of regulatory compliance, quality systems, analytical ... Avarent LLC, a consulting firm with expertise in medical device products/processes development, ...
(Date:9/2/2015)... Florida (PRWEB) , ... September 02, 2015 , ... ... been treated and managed with the use of special anti-vascular endothelial growth factor ... in many more patients, currently does not have a scientific protocol for the ...
(Date:9/2/2015)... DUBLIN , Sep. 02, 2015 /PRNewswire/ ... ( http://www.researchandmarkets.com/research/bvxxkf/cytogenetics ) has announced the addition ... - Technologies, Markets and Companies" to ... cytogenetics includes several technologies besides fluorescence in ... and multicolor FISH. Molecular cytogenetics includes application ...
(Date:9/2/2015)... 2, 2015  Neurotech Pharmaceuticals, Inc., announced today ... multicenter Phase 2 clinical trial of NT-503 Encapsulated ... recurrent subfoveal choroidal neovascularization secondary to age related ... vascular endothelial growth factor (VEGF) receptor protein continuously ... "This landmark proof-of-concept study will evaluate NT-503 ECT ...
Breaking Biology Technology:NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 2NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 3NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 4NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 5NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 6NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 7StemCell GeneticMed Announces That It Has Started Stem Cell Treatments for Age Related Dry Macular Degeneration (AMG) 2Global Cytogenetics Technologies Study 2015-2025 - Latest Markets and Companies Analysis 2Global Cytogenetics Technologies Study 2015-2025 - Latest Markets and Companies Analysis 3Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 2Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 3Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 4
... , SEATTLE, Nov. 20 Dendreon Corporation (Nasdaq: ... Drug Administration (FDA) provided written acknowledgement that the Company,s amended ... response. The FDA has assigned a Prescription Drug User ... time it will respond to Dendreon,s amended BLA. Dendreon ...
... METTLER ... Characterization”, will be presented on December 2, 2009. In this webinar, the application ... a series of roller compaction runs while varying raw materials, flow rates, and roller ... ...
... Omeros Corporation (Nasdaq: OMER ) today announced unaudited financial results ... months ended September 30, 2009, Omeros reported a net loss of ... loss of $7.4 million, or $2.54 per share, for the same ... the Company reported a net loss of $15.5 million, or $5.29 ...
Cached Biology Technology:Dendreon Receives FDA Acknowledgement of Complete Response 2Dendreon Receives FDA Acknowledgement of Complete Response 3Roller Compaction Process Optimization Using At-Line Particle Characterization 2Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 2Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 3Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 4Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 5Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 6Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 7Omeros Corporation Reports Third Quarter 2009 Financial Results and Development Highlights 8
The stirbar is used in the buffer tank of the Trans-Blot Plus cell to maintain uniform conductivity and temperature during electrophoretic transfer. Dimensions are 3.5 x 0.5 in....
... latest entry in the Biomek line. With an,up-to-date ... robustness, it can meet the needs of just ... either one or two pipetting pods. With its ... standard for flexible laboratory solutions to meet your ...
... The Biomek FX P is the ... hardware design for greater positional accuracy and increased ... about any application. It can be configured with ... large deck capacity, the Biomek FX P ...
... and you reduce the chance of error. ... 8000. Developed using Beckman Coulters extensive experience ... electrophoresis technology, the CEQ 8000 is a ... automatically fills the capillary array with a ...
Biology Products: