How did metabolism begin? Or associated with a ferredoxin
July 03, 2019 Source: Science and Technology Daily
Window._bd_share_config={ "common":{ "bdSnsKey":{ },"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":" 0","bdSize":"16"},"share":{ }};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')) .src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];Science and Technology Daily, Beijing, July 2 (Reporter Liu Xia) Life converts food into energy through metabolic processes, providing power for exercise and growth. One of the most enduring mysteries in the scientific world is: How did metabolism begin? According to a report by the Physicist Network on the 1st, in response to this question, British scientists reverse engineered a primitive ferredoxin and inserted it into a living bacterium, which resulted in the cell's metabolism. Growing and breeding.
Ferroxygenated proteins support the metabolism of bacteria, plants and animals by allowing electricity to move within the cell. In today's organisms, these proteins have different complex forms, but the researchers speculate that they all come from a simpler protein that exists in all life ancestors.
To this end, the researchers compared various ferredoxin molecules present in the organism and designed their ancestral morphology using a computer model, eventually creating a basic version of the protein - a type that is capable of conducting electricity within cells. Simple ferredoxin. Studies have shown that this protein has evolved over many generations to produce many types of ferredoxins that exist today.
To prove that this ancient protein can support the proliferation of life, the researchers inserted it into living cells. They removed the gene used by E. coli to create ferredoxin and added the protein. The results showed that genetically engineered E. coli colonies survived and grew, albeit slower than normal.
Andrew Mutter, a postdoctoral researcher in the Department of Marine and Coastal Sciences, said: "Understanding the inner workings of ancient cells, the ancestors of all life on Earth, helps us understand how life is produced and how life can be in other worlds. The way it appears. Now, we are closer to this point."
Vicker Nanda, a co-author of the study and a professor at Rutgers Wood Johnson Medical School, said the findings are significant in the fields of synthetic biology and bioelectronics. Synthetic biology uses the metabolism of microorganisms to produce industrial chemicals, while bioelectronics seeks to use the natural circuits of cells to store energy and perform other functions.
Nanda said: "We have created a streamlined version that supports life reproduction. Future experiments can be built on this simple version, and perhaps in the industrial field."
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