Navigation Links
Selecting life: Scientists find new way to search for origin of life

Over the last half century, researchers have found that mineral surfaces may have played critical roles organizing, or activating, molecules that would become essential ingredients to all life--such as amino acids (the building blocks of proteins) and nucleic acids (the essence of DNA). But which of the countless possible combinations of biomolecules and mineral surfaces were key to this evolution? This vexing question has stumped scientists for years because of the sheer volume of possibilities. Now an interdisciplinary team of researchers led by Robert Hazen, of the Carnegie Institution's Geophysical Laboratory and former president of the Mineralogical Society of America, has developed new protocols and procedures for adapting DNA microarray technology to rapidly identify promising molecule/mineral pairs.

Hazen's Presidential Address in the November/December issue of American Mineralogist describes this work. It sets out a first-of-its-kind comprehensive survey into research that has identified processes by which minerals may have prompted the transition from a geochemical world to a biological one almost four billion years ago.

Scientists understand several probable steps in the origin of life, notably how the first organic molecules could have formed. In fact, prebiotic synthesis processes are now thought to have been so productive that the ancient Earth must have had far more different kinds of molecules than could have been used by early life. One of the biggest questions in origins research, therefore, is how just the right blend of critical biomolecules was selected, concentrated, and organized from the diverse primordial "soup." Previous research by the Carnegie team and others has shown that many molecules, including amino acids, can adhere to mineral surfaces, prompting further organic reactions. These findings have made surface/molecule interactions the subject of intense study.

Scientists suspect that organic material was
'"/>

Source:Carnegie Institution


Page: 1 2 3 4

Related biology news :

1. A bugs life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist
2. The shape of life: research sheds light on how cells take shape
3. Lighting up life: Cold Spring Harbor Protocols presents tips for creating glowing plants
4. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
5. Scientists Replicate Hepatitis C Virus in Laboratory
6. Scientists detect probable genetic cause of some Parkinsons disease cases
7. Scientists find missing enzyme for tuberculosis iron scavenging pathway
8. Scientists seek answers on what activates deadly anthrax spores
9. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
10. Scientists collaborate to assess health of global environment
11. Scientists decipher genome of fungus that can cause life-threatening infections
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Selecting life Scientists find new way search for origin life

(Date:9/29/2014)... Genome Institute (DOE JGI), a DOE Office of ... projects have been selected for the 2015 Community ... Caribbean waters, and from plant root micro-ecosystems, to ... watersheds, the CSP 2015 projects portfolio highlights diverse ... , "These projects catalyze JGI,s strategic shift ...
(Date:9/29/2014)... The BRAF inhibitor dabrafenib has significant anti-tumour activity ... cell lung cancer whose disease has progressed after ... the ESMO 2014 Congress in Madrid, Spain. ... BRAF have generated considerable interest because these mutations ... tyrosine-kinase inhibiting agents," says lead author Dr David ...
(Date:9/29/2014)... Oktoberfest is here, and that means ... for a cold one, taking that first ... chemicals have reacted to form compounds that ... Reactions explains why beers get skunky, and ... brews from going bad. Learn all about ...
Breaking Biology News(10 mins):2015 DOE JGI's science portfolio delves deeper into the Earth's data mine 22015 DOE JGI's science portfolio delves deeper into the Earth's data mine 32015 DOE JGI's science portfolio delves deeper into the Earth's data mine 42015 DOE JGI's science portfolio delves deeper into the Earth's data mine 52015 DOE JGI's science portfolio delves deeper into the Earth's data mine 62015 DOE JGI's science portfolio delves deeper into the Earth's data mine 72015 DOE JGI's science portfolio delves deeper into the Earth's data mine 82015 DOE JGI's science portfolio delves deeper into the Earth's data mine 9Promising results shown with targeted approaches in subsets of non-small cell lung cancer 2Promising results shown with targeted approaches in subsets of non-small cell lung cancer 3
... along the Mississippi River and other areas are altering ... a researcher from Iowa State University. Fred Janzen, ... studied turtle nesting habits and also accumulated research going ... the turtles to find out when they make nests ...
... snakes may slither in saltwater, but they sip the ... zoologist in a paper appearing this month in the ... Physiological and Biochemical Zoology . Harvey Lillywhite ... roughly 60 species of venomous sea snakes worldwide satisfy ...
... incoming administration will confront an array of threats and ... American president, says Steve Fetter, dean of the University ... won, Fetter asked six experts on his faculty with ... recommending steps to address key challenges. Most ...
Cached Biology News:Turtles alter nesting dates due to temperature change says ISU researcher 2Zoologists: Sea snakes seek out freshwater to slake thirst 2Zoologists: Sea snakes seek out freshwater to slake thirst 3Advice to the new administration: UM foreign and domestic policy guide 2Advice to the new administration: UM foreign and domestic policy guide 3Advice to the new administration: UM foreign and domestic policy guide 4Advice to the new administration: UM foreign and domestic policy guide 5Advice to the new administration: UM foreign and domestic policy guide 6Advice to the new administration: UM foreign and domestic policy guide 7
(Date:9/29/2014)... 2014 Each year in the ... medical attention. In the military, burn injury is ... battlefield medical care. More than 800 service members ... wounds heal slowly, remain inflamed and often become ... debilitating and functionally damaging. While developments in supportive ...
(Date:9/29/2014)... start of the military conflicts in Iraq and Afghanistan, ... States with traumatic brain injury caused by exposure to ... explosive devices, or IEDs. Symptoms of traumatic brain injury ... and nausea, to more severe impairments in memory and ... Defense has recognized the critical importance and complexity of ...
(Date:9/29/2014)... Research and Markets  has announced the ... & Services, End-User , Application - Global Forecast to ... The global oligonucleotide synthesis market is expected to reach ... growing at a CAGR of 9.8% from 2014 to ... the basis of products and services, applications, end users, ...
(Date:9/29/2014)... diseases and biodiversity loss requires evolutionary thinking, argues ... Express that was co-authored by Bruce Tabashnik ... and Life Sciences. , For the first time, ... progress in addressing a broad set of challenges ... that consider evolutionary histories and the likelihood of ...
Breaking Biology Technology:Faster Healing with Fewer Scars 2Modeling shockwaves through the brain 2Modeling shockwaves through the brain 3Modeling shockwaves through the brain 4Oligonucleotide Synthesis (Diagnostics, PCR, QPCR, Gene Synthesis, NGS, DNA, RNAi) Market - Global Forecast to 2019 2Oligonucleotide Synthesis (Diagnostics, PCR, QPCR, Gene Synthesis, NGS, DNA, RNAi) Market - Global Forecast to 2019 3Evolutionary biology: It's not just for textbooks anymore 2Evolutionary biology: It's not just for textbooks anymore 3
... Iceland, Jan. 4 deCODE genetics,(Nasdaq: DCGN ) ... of deCODE,CEO Kari Stefansson,s presentation at the JPMorgan 26th ... 11:30 am PST / 7:30 pm GMT on,Thursday, January ... webcast can be accessed through the Investors page on ...
... to study technology to reduce greenhouse gas emissions, ... Midland,Company (NYSE: ADM ), the Midwest Geological ... (ISGS) announce that they are,working together on a ... and storage of carbon dioxide from ADM,s ethanol ...
... development programs, including review of positive results from the Phase ... ... Jan. 4 QuatRx Pharmaceuticals Company,today announced that the company chief ... 26th Annual JP Morgan Healthcare,Conference on Tuesday, January 8th, 2008, at ...
Cached Biology Technology:ADM, MGSC and ISGS Announce Carbon Sequestration Project 2ADM, MGSC and ISGS Announce Carbon Sequestration Project 3QuatRx Pharmaceuticals to Present at 26th Annual JP Morgan Healthcare Conference 2