Artificial molecule evolves in the lab


	Artificial molecule evolves in the lab

Mohir

1-9-2009 7:36 AM

703 views

tags:

life, artificial life, rna

Mohir says:

efforts to create more life in the labs will eventually hit a philosophical wall, not a technical one.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/8dc2fd7a-fa05-4fdf-9e15-880822a76c3d/EBC62A59-DD28-4E50-87F1-51DDF5B58F21/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news" href="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news" style="font-size: 11px;">www.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news"><P>A new molecule that performs the essential function of life - <A href="http://www.newscientist.com/article/dn755-early-replica.html" linkindex="32">self-replication</A> - could shed light on the origin of all living things.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news"><P>If that wasn't enough, the laboratory-born ribonucleic acid (RNA) strand evolves in a test tube to double itself ever more swiftly.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news"><P>"Obviously what we're trying to do is make a biology," says <A target="ns" href="http://www.scripps.edu/mb/joyce/" linkindex="33">Gerald Joyce</A>, a biochemist at the Scripps Research Institute in La Jolla, California. He hopes to imbue his team's molecule with all the fundamental properties of life: self-replication, evolution, and function.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news"><P>Joyce and colleague Tracey Lincoln made their chemical out of RNA because most researchers think early life stored information in this sister molecule to DNA. And unlike the stuff of our genomes, RNA molecules can catalyse chemical reactions.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn16382-artificial-molecule-evolves-in-the-lab.html?DCMP=OTC-rss&nsref=online-news"><P>"We're trying to jump in at the last signpost we have back there in the early history of life," Joyce says.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/EBC62A59-DD28-4E50-87F1-51DDF5B58F21/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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