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:7/27/2015)... Calif. , July 27, 2015  Synaptics ... of human interface solutions, today announced that Huawei ... touchscreen solution for its stylish smartwatch. Huawei ... its proven reliability, low power and highly responsive ... wet finger. Huawei designers also required a classic ...
(Date:7/23/2015)... 2015 Aware, Inc. (NASDAQ: AWRE ), a ... results for its second quarter ended June 30, 2015.  ... $4.5 million, a decrease of 33% compared to $6.8 million ... second quarter of 2015 was $0.3 million, or $0.01 per ... diluted share, in the same period a year ago.  ...
(Date:7/21/2015)... Today, ZTE announced its Android smartphone Axon, featuring FPC,s ... in 2015 that relate to sales of FPC1025 for this smartphone ... MSEK for 2015. Jörgen Lantto, CEO of FPC, comments: ... China and we are proud that ... Axon , its first smartphone ...
Breaking Biology News(10 mins):Synaptics Touchscreen Solution Powers New Huawei Watch 2Synaptics Touchscreen Solution Powers New Huawei Watch 3Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2
... Melbourne, Australia, have discovered how a key viral gene ... Their finding is providing new insights into how viruses ... reevaluate their approaches to viral vaccine development. ... at the University of Cambridge (UK) have been studying ...
... gigantic leatherback turtle in the South Atlantic have been ... using satellite tracking. Experts at the Centre for ... led a five-year study to find out more about ... The research, published in the Proceedings of the ...
... In the first-ever quantification of energy expended by humans ... that the metabolic cost of an adult missing one ... less than two miles. The new findings will ... of sleep in humans, said CU-Boulder Associate Professor Kenneth ...
Cached Biology News:Viral evasion gene reveals new targets for eliminating chronic infections 2Epic journeys of turtles revealed 2Metabolic cost of human sleep deprivation quantified by University of Colorado team 2Metabolic cost of human sleep deprivation quantified by University of Colorado team 3
(Date:7/30/2015)... Bedford, NH (PRWEB) , ... July 30, 2015 ... ... efficiency homogenizer for advanced fluid applications and designed for continuous operation up to ... clean-in-place and sterilization-in-place, ensuring safety, efficiency, and preventing toxic contamination. , The Pony™ ...
(Date:7/29/2015)... Asia-Pacific / Japan (Q2 2015: +14% CER ... 2015 on high-single-digit growth in China , as well as ... . Europe / Middle East ... of sales) showed gains in Germany , Turkey ... 2015: +4% CER / 49% of sales) grew 11%, excluding U.S. HPV sales, ...
(Date:7/29/2015)... July 29, 2015 ... the addition of the "Global Biosimilars Market, ... The Global Biosimilars Market, 2015 - ... rapidly growing biosimilars market. With the blockbuster biologics ... minimize costs, biosimilars are being viewed as viable ...
(Date:7/29/2015)... , July 29, 2015  Indivior PLC (LON: INDV) ... naloxone nasal spray was accepted and received Priority Review ... the treatment of opioid overdose. This naloxone nasal spray ... formulated for optimal absorption into the nasal mucosa. 1 ... training so individuals may be better equipped to help ...
Breaking Biology Technology:GEA Announces the Pony™ NS2006L… a Self-contained, High Pressure Lab Homogenizer for Product Development Ensuring Maximum Efficiency and Safety 2QIAGEN Reports Results for Second Quarter and First Half of 2015 2QIAGEN Reports Results for Second Quarter and First Half of 2015 3QIAGEN Reports Results for Second Quarter and First Half of 2015 4QIAGEN Reports Results for Second Quarter and First Half of 2015 5QIAGEN Reports Results for Second Quarter and First Half of 2015 6QIAGEN Reports Results for Second Quarter and First Half of 2015 7QIAGEN Reports Results for Second Quarter and First Half of 2015 8QIAGEN Reports Results for Second Quarter and First Half of 2015 9QIAGEN Reports Results for Second Quarter and First Half of 2015 10Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 2Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 3Indivior PLC Announces FDA Acceptance of Naloxone Nasal Spray New Drug Application With Priority Review 2Indivior PLC Announces FDA Acceptance of Naloxone Nasal Spray New Drug Application With Priority Review 3Indivior PLC Announces FDA Acceptance of Naloxone Nasal Spray New Drug Application With Priority Review 4Indivior PLC Announces FDA Acceptance of Naloxone Nasal Spray New Drug Application With Priority Review 5
... announced today Winchester Hospital in ... APIs suite of labor resource management solutions throughout ... Payrollmation time and attendance, ActiveStaffer staff scheduling, EdTrack ... ,The hospital is adopting the applications in hopes ...
... coordinator for the Sun Prairie Area School District, laid out ... meeting of the World Future Society s Madison chapter, ... getting a public education, he said, classrooms will need to ... New technologies can also offer better measurements of students abilities. ...
... in the San Francisco area, you could be part of something ... the University of San Francisco will attempt to create an ad ... 1,000 laptop-toting geeks. The goal of the event, called "FlashMob Computing ... the top 500 supercomputers in the world. , ,It's a big ...
Cached Biology Technology:21st century skills, the future of technology and education 221st century skills, the future of technology and education 3This FlashMob is something super 2This FlashMob is something super 3
Monoclonal Antibody toSynapsin I a and I b Neurofilament associated protein from mouse brain extracts (4)....
Human peripheral blood PBMCs, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood PBMC and T Cells...
Umbilical cord blood CD14+ Monocytes, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Monocytes, B Cells and NK Cells...
Human peripheral blood CD8+ T cells, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood PBMC and T Cells...
Biology Products: